Introduction

The development course of romantic love

Romantic love, as defined by Hatfield and Rapson (1987) as an intense longing for union with another, has long been recognized as a driving force behind some of humanity’s most remarkable achievements. Studies by Bartels and Zeki (2000) and the work of Fehr (2013, 2015) have further emphasized its profound impact. Previous research has suggested that romantic love has a crucial role in the development and maintenance of romantic relationships. It involves a transition from the significant investment of time and attention in the initial stages to enhanced communication and satisfaction in committed partnerships (Mizrahi et al. 2022). However, recent research has shown that in the United States, the divorce rate has consistently remained at historically high levels. According to the Centers for Disease Control and Prevention (2017), ~40–50% of first marriages end in divorce. In recent times, there has been a trend toward shorter and more prevalent romantic relationships. Alirezanejad (2022) found that different generations of women have maintained distinct expectations and experiences when it comes to love. Additionally, the significance of commitment in romantic relationships has witnessed a decline. These findings also indicate that there are additional factors at play that influence the dynamics between romantic love and the duration of relationships. The triangular theory of love, being one of the most widely used theories on romantic love, proposes that romantic love consists of three components: intimacy, passion, and an absence of commitment, alongside a willingness to invest resources without expecting reciprocation (Jimenez-Picon et al. 2022). The Love Attitude Scale (LAS) developed by Clyde and Susan Hendrick has been a significant contribution in the study of romantic love using psychometric methods. Tobore (2020) introduced a comprehensive four-fold framework that aims to elucidate the dynamics of how love evolves and diminishes. This framework includes the elements of attraction, empathy or connection, trust, and respect. As a result, the enigmatic and unique nature of romantic love has captivated the attention of scholars from various disciplines, including psychology, biology, sociology, and neuroscience. These scholars have conducted extensive research and investigations into the complexities of romantic love. Thus, the present study conducted a comprehensive and in-depth analysis and discourse on romantic love, spanning multiple research domains. Additionally, the publication emphasized the influence of romantic love on positive emotions as well as its association with various negative behaviors. Furthermore, it underscored the importance of utilizing bibliometric analysis as a valuable approach to study and understand romantic love.

The research directions of romantic love in different disciplines

Psychologists have focused on exploring the relationship between romantic love and negative emotions in individuals with mental illnesses. Lafontaine et al. (2020) found a correlation between romantic love insecurity, specifically anxiety and avoidance, and the occurrence of intimate partner violence (IPV). This pattern of behavior was shown to undermine relationships and diminish individuals’ sense of security. Moreover, individuals with schizophrenia and other mental health conditions faced significant challenges in building and sustaining healthy interpersonal connections, partly due to the enduring stigma associated with mental illness (Budziszewska et al. 2020). Biological researchers have delved into the physiological activities and responses associated with romantic love. Furthermore, biological research has demonstrated that communication plays a crucial role in enhancing romantic relationships by facilitating physiological and behavioral adaptations between partners. For instance, a study by Zeevi et al. (2022) revealed that men and women in a romantic relationship can enhance their romantic interest in each other by synchronizing their skin electrical activities and modifying their behavior. These findings suggest that the social adaptation of the sympathetic nervous system and motor behavior play a critical role in the romantic attraction between partners. Furthermore, recent biological research conducted by Kerr et al. (2022) has discovered a correlation between unsuitable adult attachment in romantic relationships and the interpersonal circumplex, which is a component of personality pathology. Furthermore, a sociological study on pair-bonding conducted by Fletcher et al. (2015) highlighted that romantic love is intricately linked to the evolution and survival of Homo sapiens, making it a biologically significant function with profound evolutionary implications. Neuroscientists have examined the activation of different brain regions that are triggered by romantic love activities. Functional magnetic resonance imaging (fMRI) has emerged as a prominent technique for studying the neurobiological basis of love. Researchers such as Acevedo et al. (2020) and Chester et al. (2021) have utilized fMRI to investigate the neural correlates of romantic love and gain insights into the brain mechanisms underlying this complex phenomenon. Neuroscientists have identified specific brain regions associated with love, including the insula and anterior cingulate cortex. These regions are involved in the processing of emotional experiences related to valued objects. A study by Bartels and Zeki (2000) highlighted the involvement of these brain regions in the experience of romantic love, shedding light on the neural mechanisms underlying the emotional aspects of love. The activation of reward-related areas in the brain, particularly those rich in oxytocin, has been observed in individuals experiencing love. Studies by Acevedo et al. (2012) and Bartels and Zeki (2004) have shown that regions associated with reward processing, such as the ventral tegmental area and nucleus accumbens, are involved in the experience of romantic love. Indeed, the involvement of the reward system in love has surpassed expectations. During the initial stages of romantic love, research conducted by Fisher et al. (2010) has shown that reward-related brain regions, including the bilateral ventral tegmental areas, are activated more strongly compared to the later stages of passion.

The social impact of romantic love

Undoubtedly, falling in love has a profound impact on people’s daily lives, as highlighted by research conducted by Quintard et al. (2021). Falling in love has been associated with enhanced well-being and has been correlated with fervor, activity, pleasure, and other positive emotions, as noted in research conducted by Langeslag (2022). However, it is important to acknowledge that the pitfalls of romantic love are often overlooked. Research, such as that conducted by Lonergan et al. (2022), has found associations between romantic love and criminal activity as well as psychological disorders. Additionally, studies by Aron et al. (2005), Merritt et al. (2022) and Li et al. (2022) have highlighted the presence of unpleasant affective states such as hyperarousal, anxiety, and depression in the context of romantic love. In recent decades, romantic love has undergone significant transformations that have had a substantial impact on both personal and societal life, as emphasized by research conducted by Reis et al. (2013).

The necessity of bibliometric analysis

Bibliometrics is a field that encompasses the quantitative study of documents, aiming to provide researchers with insights into academic, technological, and scientific advancements (William and Concepción 2001). The methodology utilized a range of techniques, including author analysis, concept mapping, clustering, factor analysis, and citation analysis, to investigate historical data and assist scholars in identifying significant trends and emerging directions within their disciplines (Daim et al. 2006; Hou et al. 2022). The term “bibliometrics” was coined by the distinguished British scientist Allen Richard in 1969, replacing the previously employed term “statistical bibliography.” In recent years, there has been a surging interest in this approach, with a growing number of researchers incorporating it into their work. Bibliometric analysis has been employed in various research domains, including the study of romantic love. These analyses offer valuable insights into the research areas that have been investigated, as well as potential future trends, challenges, and opportunities in the field. To the best of our knowledge, there have been limited previous publications that have specifically analyzed romantic love based on the triangular theory of love development and explored the concept across different disciplines.

In the current study, we utilized state-of-the-art analytical tools, including CiteSpace (6.2.R2), VOSviewer (1.6.18), Microsoft Excel (2019), and Scimago Graphica (1.0.26), in conjunction with the most recent data obtained from the Web of Science (WOS) core collection database. These tools allowed us to conduct a comprehensive bibliometric and visual analysis of publications related to romantic love published in the last decade. By employing these cutting-edge tools and leveraging the extensive data available from WOS, we aimed to gain valuable insights into the research landscape surrounding romantic love during this specific time frame. Our study aimed to achieve several objectives. First, we sought to identify the current research hotspots and trends within the field of romantic love. Second, we aimed to conduct an in-depth examination of visual maps and seminal articles, providing a comprehensive overview of the literature.

Material and methods

Data acquisition and search strategy

The Web of Science (WOS) platform served as a valuable resource, containing a vast collection of over 9000 significant academic articles. This database stands as one of the oldest and most comprehensive citation index records, encompassing a wide range of disciplines, including social science, engineering technology, biomedicine, arts and humanities, and various other subjects. Since its establishment in 1900, the Web of Science (WOS) has served as a cornerstone of scholarly research and has wielded significant influence within academic circles (Ellegaard and Wallin 2015). The quantitative analysis feature of the platform facilitated the acquisition of various types of information related to scholarly publications. This included data on the annual number of papers published, papers published by state or region, popular journals within specific disciplines, frequently utilized publishing houses, and highly downloaded and cited literature. Indeed, references that receive multiple citations play a crucial role in providing a robust foundation for the study of romantic love, as emphasized by Xu et al. (2022).

The subject matter of romantic love and its interrelation with romantic relationships has a profound impact on the satisfaction and longevity of love between individuals, as highlighted by Zagefka (2022). Passionate love is a fundamental concept within romantic relationships, as emphasized by Mizrahi et al. (2022). Sternberg’s triangular theory of love stands as one of the most substantial and frequently referenced frameworks for understanding love, as noted by Sorokowski et al. (2021). To comprehensively explore the topic, the search strategy incorporated the inclusion of the following elements: The topic could encompass “romantic love,” OR “passionate love,” OR “romantic relationship,” OR “triangular theory of love.”‘ The search was conducted within the Web of Science Core Collection database, which covers the time period from 2013 to 2022. The database indexes the Science Citation Index Expanded (SCI-EXPANDED) and Social Science Citation Index-Expanded (SSCI-EXPANDED). The search was limited to publications written in the English language. To refine the search and focus on specific types of publications, certain categories were excluded from the search results. These excluded categories included early access, book chapters, proceeding papers, data papers, and retracted publications. By excluding these categories, the search aimed to prioritize reviews and articles, which are typically considered primary sources of scholarly information. As a result of these refined search criteria, a total of 6858 relevant items were identified and included in the analysis.

The retrieval strategy employed in this research was designed to maintain the integrity and impartiality of the search process (see Fig. 1).

Fig. 1: Flowchart of romantic love researches.
figure 1

To ensure that the search results were not influenced by daily database updates, all searches were conducted on a single day, specifically on March 26, 2023.

Full size image

Analysis tool

For bibliometric analysis, the current study utilized a powerful combination of CiteSpace (6.2.R2), VOSviewer (1.6.18), Microsoft Excel (2019), and Scimago Graphica (1.0.26). These state-of-the-art software tools seamlessly integrated insights from scientometrics, information science, computer science, and other related fields to generate highly intuitive and informative visual maps. These maps revealed the development trajectory and structural underpinnings of scientific research. Indeed, each of these four software applications held unique and irreplaceable significance, excelling in specific domains of bibliometric analysis. Excel, for instance, demonstrated unparalleled proficiency in the intuitive transformation of charts. CiteSpace specialized in the clustering of topics and the delineation of the spatio-temporal background of words. VOSviewer played a pivotal role in both displaying and analyzing keywords, leveraging its distinctive capabilities. Lastly, Scimago Graphica contributed significantly to the geographical perspective of statistical analysis, offering insights that were unmatched in their comprehensiveness. Collectively, these tools not only proved indispensable but also brought their individual strengths to the forefront, contributing uniquely to the overall analytical landscape. Indeed, the Excel program was commonly employed to comprehensively analyze key data points such as the number of published papers, frequency of citations, and matched published documents. It was also employed to synthesize all the information for creating intuitive visual representations (Fig. 2) to illustrate the trends in the number of publications, citations, and their corresponding fitting functions during different periods. The use of CiteSpace in the current study was focused on highlighting the most salient occurrence burst on a timeline map and detecting the centrality of romantic love studies (Zhang et al. 2022a). In order to attain a comprehensive understanding of the progress in romantic love research, an evolutionary analysis was undertaken, utilizing CiteSpace’s burst function. Co-occurrence analysis on pertinent keywords is another valuable method used to gain insights into the relationships and patterns among keywords in a specific research domain. Indeed, the analyses conducted, including the evolutionary analysis and co-occurrence analysis, facilitated an examination of the prevailing themes and trends of romantic love across different generations from a chronological perspective. VOSviewer, a powerful visualization tool, was utilized in the current study to portray the borders of romantic love with varying color clusters. It also facilitated the exploration of the co-occurrence of authors, institutions, and keywords associated with romantic love. The circles of various colors and sizes were used to represent the occurrence frequency of distinct cluster words and different keywords, respectively. The examination of keywords in the current study, augmented by chart analysis, delved into a more profound, comprehensive, and scientific level. Scimago Graphica 1.0.18, a tool designed for visualizing international collaboration, proved highly effective in the current study for facilitating the visualization of international collaboration (He et al. 2022). By organically combining the atlas and the world map, researchers were able to intuitively observe differences in the number of publications across various countries and the extent of national collaboration between different regions.

Fig. 2: Annual publications, citation counts, and the fitting equation for annual publications in romantic love researches from 2013 to 2022.
figure 2

The trend exhibited an upward trajectory, with an estimated 938 publications in 2021, compared to 502 publications in 2013. Notably, the annual publication volume in the field of romantic love had reached its peak in 2021, as indicated by the fitted equation. However, it is worth mentioning that there was a slight decrease in publication numbers during specific periods. From 2017 to 2018, the annual publication count declined from 644 to 608. Similarly, from 2019 to 2020, there was a minor decrease from 872 to 861 publications annually. Additionally, there was a slight decline from 2021 to 2022, with the number of publications decreasing from 938 to 817 annually.

Full size image

In the previous study, a comprehensive range of factors was considered to provide a thorough and scientifically rigorous atlas analysis of romantic love research. These factors included the annual publication rate, citation counts, H-index, impact factor, centrality, and occurrence/citation burst. An increase in the volume of publications can indicate the growth of a field and provide insights into future research directions (Wang 2016). While the number of citations a paper receives may not directly measure an author’s academic influence, it can indicate the recognition of the author’s work by peers worldwide. The “H-index” was a tool for evaluating academic influence, where a researcher with an “H-index” of 10 had 10 papers that had been cited at least 10 times (Wang et al. 2021). Since its inception in the 1950s, the impact factor has been widely regarded as a prominent index for ranking scientific literature. It has become an emblem of the prestige and significance of journals and authors in determining the relevance of a journal (Oosthuizen and Fenton 2014). For the current study, Journal Citation Reports (JCR) were utilized to calculate impact factors (2021). The centrality of research objects can indeed reflect their impact on the entire field, with greater centrality indicating a greater representation of homologous study content within a subject area. In the study conducted by Gao et al. (2021), betweenness centrality scores were adjusted to the range of [0, 1]. Specifically, if the betweenness centrality score of a main keyword exceeded 0.10, it was considered to indicate the significance of the study target. In the study conducted by Xu et al. (2022), the concept of a “burst term” was utilized to refer to an unexpected term that emerged in the research, potentially indicating new directions or orientations discovered during the investigation. The Kleinberg burst detection method, which is implemented in the CiteSpace software, was employed to identify these burst terms and highlight them as indicators of frontier research.

Results

Publication outputs

A total of 6858 records met the search criteria. As depicted in Fig. 2, the number of annual publications in the field of romantic love has shown a consistent upward trend since 2013. This increase is accompanied by a corresponding surge in citation counts, as indicated by the fitted equation. Citation counts in the field of romantic love have also experienced a significant upsurge since 2013, with an approximate 90-fold increase by 2022. Furthermore, based on current trends and fitting curves, the number of studies in this field is expected to continue rising, with an increasing number of researchers focusing on this topic.

Distribution by journals

The current study retrieved a total of 6858 records from 1251 journals, with ~33.79% of the material published by 20 publications that released more than 50 papers in this field. The top ten journals, accounting for 23.78% (92–400) of all papers published, had an average publication count of 134 papers per journal (see Table 1). Among them, the Journal of Social and Personal Relationships (400 publications, IF 2021 = 2.681) had the highest number of papers on romantic love research, followed by Personal Relationships (189 publications, IF 2021 = 1.528), and Personality and Individual Differences (185 publications, IF 2021 = 3.950). Notably, the Journal of Personality and Social Psychology was the most influential professional core journal in this field, boasting the highest impact factor (8.460). Both European and American journals have made significant contributions to this field, with the United States and the United Kingdom accounting for 40% and 50% of the top 10 journal publishing countries/regions, respectively. The impact factors of the top 10 most-published journals ranged from 1.528 to 8.460, with an average of 4.070. It is worth noting that publishing romantic love-related articles in high-impact journals remains challenging.

Table 1 Top 10 journals have published articles on romantic love researches.
Full size table

Distribution by authors and research areas

A staggering 15,088 authors contributed to the total number of papers. In Fig. 3, the collaborative efforts of the writers were illustrated through a network map, where the connections between the nodes signified their collaborative affiliations. Among the top three clusters, the red cluster included authors Joseph P. Allen, Martine Hebert, and Marie-France Lafontaine, who had converged due to their shared research interests in adolescent dating violence and aggression (Cenat et al. 2022; Niolon et al. 2015). The blue cluster consisted of authors Frank D. Fincham, James K. Monk, and Ashley K. Randall, who had explored the interplay between relationship satisfaction, stress, and relationship maintenance in romantic relationships (Randall and Bodenmann 2017; Vennum et al. 2017). The yellow cluster included authors Todd K. Shackelford, William J. Chopik, and Justin K. Mogilski, whose work focused on the topic of polygamy (Moors et al. 2019; Sela et al. 2017). Martine Hebert, Todd K. Shackelford, Frank D. Fincham, and Emily A. Impett emerged as the cooperative network’s central nodes, underscoring their crucial role in advancing research on romantic love.

Fig. 3: Network map of authors engaged in romantic love researches (threshold = 5).
figure 3

The authors’ cooperative network was partitioned into eight distinct clusters.

Full size image

Table 2 provided a rundown of the most productive authors, with their published works ranging from 28 to 74 publications, averaging 41. The H-index, a yardstick for measuring academic influence, was employed to assess their impact. Notably, Emily A. Impett emerged as the dominant force within the cohort of scholars dedicated to the study of romantic love, having authored the most papers among the group (74 publications, H-index = 38). Additionally, Nickola C. Overall (42 publications, H-index = 19) and Amy Muise (60 publications, H-index = 30) also featured prominently as leading contributors to the field.

Table 2 Top 10 authors that published articles on romantic love researches.
Full size table

Table 3 and Fig. 4 displayed the number of publications in different fields of study related to the topic of romantic love. Notably, publications in the fields of biology, neuroscience, and economics were also included in Table 3. The humanities were increasingly collaborating on romantic love research. Furthermore, the topic of romantic love was gaining popularity in the fields of psychology and sociology.

Table 3 Top 15 research areas that published articles on romantic love researches.
Full size table
Fig. 4: Publications, proportions, and the fitting proportion for top 5 research areas in romantic love researches from 2013 to 2022.
figure 4

The field of psychology, including psychology and psychiatry, was significantly ahead. The field of sociology encompassed various topics in the social sciences, including sociology and social work.

Full size image

Distribution by country and institution

A total of 6858 publications had been published and disseminated to 104 countries and regions worldwide. In the country analysis, Scimago Graphica had been used to explore the geographic collaboration network of participating nations. The participants of the current study were drawn from 104 different countries spanning Asia, Africa, Europe, North America, and South America, with Europe exhibiting the highest level of overall engagement, underscoring the global trend toward collaboration. The United States and the United Kingdom had demonstrated the greatest degree of cooperation. Notably, China, South Africa, Spain, Italy, France, and other countries with high cooperation densities had formed the most significant multi-center cooperation network in this field (see Fig. 5). Figure 6 illustrated international collaboration.

Fig. 5: Collaborative relationships in countries/regions.
figure 5

By leveraging Scimago Graphica, it was possible to merge geographical perspectives with national publications and collaborative relationships, providing an intuitive and scientific method to illuminate the various conditions of countries involved in the research on romantic love.

Full size image
Fig. 6: Network map of countries engaged in romantic love researches (threshold = 5).
figure 6

The largest blue cluster was comprised of the United States, China, Switzerland, Turkey, and Norway, demonstrating collaboration across the Americas, Europe, and East Asia.

Full size image

Table 4 outlined the specifics of the top ten countries in the landscape of romantic love research. The United States topped the list with 4092 publications, followed by Canada with 802 publications, and the United Kingdom with 540 publications. It is noteworthy that the majority of publications were disseminated from high-income countries, aligning with the overall prosperity of those nations. Most papers were disseminated in high-income countries. This trend might have stemmed from the overarching principles governing scientific inquiry, or it could be attributed to authors in these nations having the freedom to engage in research spanning areas not necessarily centered on economic growth. However, within the realm of general well-being, this emerges as a pertinent concern. Primarily, high-income countries historically boasted more affluent reservoirs of research resources, encompassing financial backing, cutting-edge equipment, and a pool of adept talent. This affluence empowered researchers in these nations to embark on a diverse array of investigations, spanning domains intricately tied to economic growth and extending to those delving into broader realms such as general well-being and social development. The discernible divergence in resource allocation likely contributed to the disproportionate prevalence of publications in high-income countries. Secondarily, the scrutiny of whether the romantic love research domain intricately correlates with economic growth warrants profound contemplation. At times, the merit of research doesn’t solely reside in its potential to spur short-term economic growth but extends to its impact on the overarching well-being and sustainable evolution of society. High-income countries, historically oriented toward prioritizing protracted social well-being, manifested a proclivity to endorse research that, while not directly contributing to economic growth, played an indispensable role in the comprehensive development of society. Institutional collaboration was vividly portrayed in Fig. 7, which consisted of six clusters. A total of 3328 institutions contributed to the 6858 articles on romantic love. Of the top 10 organizations, universities occupied the top spot (as indicated in Table 5), with the State University System of Florida (246 publications), the University System of Ohio (248 publications), and the University of California System (365 publications) leading the pack. Notably, nine out of the top 10 institutions hailed from the United States, which was a testament to the country’s exceptional research prowess in this field.

Table 4 Top 10 countries that published articles on romantic love researches.
Full size table
Fig. 7: Network map of institutions engaged in romantic love researches (threshold = 15).
figure 7

The red cluster denoted collaboration among Florida State University, University of Michigan, University of Washington, and Indiana University; the green cluster represented Ohio State University, University of Basel, and Nanyang Technological University; while the blue cluster embodied York University, the University of Toronto, Northwestern University, and Carleton University. Northwestern University, Florida State University, the University of Minnesota, and the University of Toronto were the major nodes in the cooperative network.

Full size image
Table 5 Top 10 institutions that published articles on romantic love researches.
Full size table

Analysis of references

Reference analysis played a critical role in bibliometric research, as the references with the highest citation bursts formed the foundation of knowledge at the forefront of research (Fitzpatrick 2005). In Fig. 8, the current study presented the most relevant references on romantic love, which had experienced a surge in citations over the past decade. By the end of 2022, Mikulincer and Shaver’s (2016) articles had seen a significant increase in their citation counts, with the highest spike (14.35) observed in 2016, followed by Wincentak et al.’s (2017) studies (9.9). These two studies had been widely cited over the years and accurately captured the latest trends in romantic love research.

Fig. 8: References with the strongest citation burst on romantic love researches.
figure 8

These references were represented by red and green bars, indicating their frequent and less frequent citation, respectively.

Full size image

Mikulincer and Shaver’s (2016) delved into the causes and methods for measuring individual differences in adult attachment, as well as how to modify attachment styles, using several empirical studies. Additionally, they explored the cutting-edge genetics, neurological, and hormonal substrates of attachment, expanding the impact model’s depiction of how the attachment system functioned. In the study, Wincentak et al. (2017) discussed the prevalence of dating violence among adolescents of different genders using a meta-analysis method, while also examining the potential regulatory effects of age, demographics, and measurement. Research has shown that in adolescent dating violence, the crime rate of women was significantly lower than that of men. Based on the analysis of these articles, current research trends in romantic love included adult attachment and the examination of adolescents’ irrational beliefs about love and the resulting adverse consequences, such as dating violence.

Analysis of keywords

Keyword burst refers to keywords that have shown a sharp increase in frequency over time, enabling the assessment of the current study focus in this area and reflecting the development pattern of future research. The current study extracted the burst terms of various years in the area of romantic love to obtain the burst terms of various years in the area of romantic love (see Fig. 9). As we’ve seen, the field had a diverse range of research interests. By the end of 2022, the three words with the highest peak were “same-sex” (2020–2022), “conflict resolution” (2020–2022), and “social relationships” (2020–2022):

  1. (1)

    Same-sex: in a society that valued heterosexual relationships, same-sex relationships were often met with shame and stigma, leading to additional pressures uniquely linked to their sexual orientation and partnership (Feinstein et al. 2018; Rostosky and Riggle 2017). Moreover, the online conduct of gay individuals has been demonstrated to have significant implications for their sexual risk behaviors and emotional well-being in romantic relationships (Zhang et al. 2022b). The development of effective dual interventions has been shown to enhance the health and well-being of same-sex couples and their families. These interventions should also educate parents about the potential negative effects of heteronormative assumptions and attitudes on their children’s positive adolescent development (Pearson and Wilkinson 2013).

  2. (2)

    Conflict resolution: previous research has shown the irony that a person’s favorite individual, such as their romantic partner, is often the very person with whom they engage in destructive behavior during conflicts, making this destructive response one of the most challenging issues in relationships (Alonso-Ferres et al. 2021). As a result, it was critical to effectively resolve conflicts in a constructive manner. The emergence of computer-mediated communication (CMC) as a novel conflict resolution approach prompted researchers to explore this matter. Ultimately, they discovered that there were no differences in pain, anger, and conflict resolution levels between face-to-face and CMC discussions (Pollmann et al. 2020). Another study focused on neural activity during conflict resolution, revealing that mediation could enhance conflict resolution and was linked to increased activity in the nucleus accumbens, a crucial area of the brain’s reward circuit (Rafi et al. 2020). The finding emphasizes the importance of identifying neural mechanisms that could enhance conflict resolution and improve relationship outcomes. By exploring various conflict resolution approaches and associated neural mechanisms, researchers can facilitate a deeper understanding of how to successfully resolve conflicts and enhance relationship satisfaction.

  3. (3)

    Social relationships: long-term relationships are vital to the mental health of both humans and animals. Positive emotions and experiences, such as romantic or platonic love, play a significant role in the establishment and maintenance of social bonds. With this in mind, researchers integrated brain imaging studies on emotions characterized by social connections to investigate whether and how humans and animals experience social emotions and influences similarly in the context of social relationships (Zablocki-Thomas et al. 2022). An ecological and cross-cutting perspective study found that black Americans viewed their partner’s interactions regarding discrimination as an opportunity for their romantic partner to offer support, as revealed in semi-structured interviews (Rice 2023). Furthermore, as romantic relationships represent one of the most unique types of social connections, researchers utilized functional magnetic resonance imaging (fMRI) scanning techniques to explore the neurobiological mechanisms of romantic relationships (Eckstein et al. 2023), offering valuable insight for the preservation and maintenance of social relationships and interactions.

Fig. 9: Keywords with the strongest occurrence burst on romantic love researches.
figure 9

Over the last 10 years, the most popular keywords were “same-sex” (11.07), “dating relationships” (9.22), and “HIV” (9.05), indicating high demand for these topics in recent years. The keywords with the longest blasting times were “dating relationships” (2014–2017) and “delinquency” (2014–2017). The phrases that were still trending in 2022 were hotspots.

Full size image

Figure 10 illustrated the relationship between keywords. The connection strength between two nodes was a quantitative measure of their relationship. The most frequently used keyword, “romantic relationship,” was represented by the largest node in Fig. 10 (see Table 6). The “romantic relationship” (2036) node had thicker lines than “attachment” (766), “gender” (728), “satisfaction” (664), “behavior” (529), “marriage” (508), “commitment” (419), “adolescents” (417), “associations” (395), and “intimate partner relationship” (336). The nodes had a minimum link strength of 150. The close connections between “romantic relationship” and “marriage,” “commitment,” and “intimate partnership” demonstrated the importance of stable, long-term relationships in maintaining romantic love (Fu et al. 2012).

Fig. 10: Network map of keywords engaged in romantic love researches (threshold = 20).
figure 10

The connection strength between two nodes was a quantitative measure of their relationship. The total link strength of a node was the sum of its link strengths relative to all other nodes (Liao et al. 2018).

Full size image
Table 6 Top 10 keywords that published articles on romantic love researches.
Full size table

Keywords are essential in identifying the central themes and prospective avenues of a publication. By examining the co-occurrence of keywords, one can discern the current trajectory of research and development in a specific field (Zhang et al. 2022c). In the present investigation, a total of 16,148 keywords were extracted from 6858 articles related to romantic love, with 10,571 being used only once, accounting for 65.46% of the total keywords. Through keyword co-occurrence analysis, six distinct color-coded clusters were identified, comprising attachment, gender, romantic relationships, personality, communication, and dynamics. The red cluster, attachment, delved into the complex relationships among commitment, fulfillment, companionship, and attachment insecurity. To address the diminished satisfaction in partner relationships caused by attachment insecurity, promoting healthy dualistic coping strategies (DCS) was recommended (Peloquin et al. 2022). The green cluster, gender, focused on the issues of dating violence victimization experienced by young individuals of different genders, with sexual minorities being particularly vulnerable to bullying (Cosma et al. 2022). The blue cluster, romantic connections, primarily examined the link between depressive symptoms and violent intimate partner relationships. Recent studies showed that dating violence and peer victimization were prevalent among young individuals (Smith et al. 2021) and that dating aggression was associated with both internalized and externalized psychopathology in young couples (Lantagne and Furman 2021). Additionally, the misuse of internet dating may lead to depression (Toplu-Demirtas et al. 2020). Apart from the six clusters mentioned, there was a noticeable trend toward integrating research with neuroimaging technology, which might lead to the emergence of new clusters in the realm of romantic love. The interconnectedness of attachment, gender, and romantic relationships was evident in the strong theoretical foundation and widespread attention these clusters received, whereas the clusters of personality, communication, and dynamics were more peripherally related. Due to their significance, future research on romantic love will continue to explore topics such as intimate partner violence, teenage dating violence victimization, attachment insecurity, and sexual abuse, with a focus on the three interconnected clusters of attachment, gender, and romantic relationships. In traditional notions, our understanding of romantic love had primarily consisted of terms such as romantic relationships and intimate commitments. However, practical issues such as misperceptions about love and a lack of regard for partners have gradually shifted the subject matter of research pertaining to romantic love toward dating violence. The research trajectory demonstrates a shift in the focus of romantic love research from a more idealized perspective toward a more realistic one. Finally, Fig. 11 displayed a keyword timeline graph that depicted when the most prevalent keywords first appeared and their evolving importance over time.

Fig. 11: Keywords timeline view of romantic love researches.
figure 11

This keyword timeline graph was depicted when the most prevalent keywords first appeared and their evolving importance over time.

Full size image

Discussion

The current study used advanced bibliometrics and literature data visualization techniques with CiteSpace, VOSviewer, and Web of Science to examine the growth of research publications in the field of romantic love, as well as the main research nations, journals, and emerging trends. The thorough review provided insight into the present status of development and research in this field, while also clarifying the historical path of scholarship and providing clear guidance for future research. Using bibliometric methods, the study investigated romantic love research from 2013 to 2022. The results showed a steady increase in publications on this topic, with a slight decrease noted in 2019, likely due to the detrimental impact of the COVID-19 pandemic on academic research. However, the analysis of current trends indicates a projected increase in research output on romantic love in the coming years.

Romantic love has been a global phenomenon, with Europe and the United States leading in widespread participation and clear concentration. Among the top 10 countries producing research in this field, the United States led with 4092 publications between 2013 and 2022. China, ranking fourth in terms of publications, emerged as the most prolific developing nation (328). However, compared to the United States, China lagged behind in publications and international collaboration. Therefore, China needs to expand its research efforts in this area and broaden its international partnerships. The top ten research institutions, mainly universities, played a vital role in advancing this field. Notably, nine out of ten of these institutions were located in the United States, further highlighting the preeminent position of American academic institutions in this area of study.

In the current study, we have discovered noteworthy findings regarding notable authors in the field of romantic love. The research studies have primarily focused on four distinct perspectives: the Limerence Theory, the Rate of Change in Intimacy Model, the Self-Expansion Model, and the Triangular Theory of Love. These perspectives have proposed four possible sources of romantic passion and assessed empirical evidence for and against each. Among the authors, Emily A. Impett has emerged as the most prolific author (Carswell and Impett 2021). Frank D. Fincham, who has the highest H-index, has conducted extensive research on the interplay between mindfulness and idiosyncratic mindfulness in romantic relationships. Notably, his research on adolescent intimate partner violence has received the most citations (Cui et al. 2013; Frank and Ross 2017; Kimmes et al. 2018). Furthermore, we found that an author’s centrality and citation frequency did not always correlate with their number of publications, indicating that various factors had contributed to an author’s academic influence (Zhang et al. 2022a).

The term “burst term” refers to a term that unexpectedly appears in research and may indicate new directions or a novel perspective derived from research (Xu et al. 2022). According to Fig. 8, the following references experienced a citation burst by the end of 2022: (1) Mikulincer and Shaver (2016) delved into the causes and measures of individual differences in adult attachment, explored the modifiability of attachment styles, and unveiled cutting-edge research in genetics, neurology, and hormones associated with attachment. They also extended the impact model’s depiction of the attachment system’s operation. (2) Wincentak et al. (2017) conducted a meta-analysis to investigate the prevalence of dating violence among adolescents of various genders, while also examining the potential impact of age, demographic factors, and measurement methods. Their findings suggested that the rate of perpetration of dating violence was significantly higher among male adolescents than female adolescents. In other words, male adolescents were more likely to engage in dating violence than their female counterparts. This gender difference in dating violence rates highlighted the need for targeted prevention and intervention efforts to address this issue among young people.

CiteSpace displayed keywords in bursts, as shown in Fig. 9. These data were significant for reference in cutting-edge prediction research. The terms “same-sex,” “conflict resolution,” and “social relationships” might be used frequently in the coming years, indicating potential areas of focus within the domain of romantic love:

  1. (1)

    Same-sex: same-sex relationships faced unique pressures and stigma in a society that largely valued heterosexual partnerships, leading to feelings of shame and additional stressors based on sexual orientation (Feinstein et al. 2018; Rostosky and Riggle 2017). Notably, studies have revealed that the online behavior of gay individuals could significantly impact their emotional well-being and sexual risk behaviors within their romantic relationships (Zhang et al. 2022b). To improve the health and well-being of same-sex couples and their families, effective dual interventions have been developed, including educating parents about the potential harm caused by heteronormative assumptions and attitudes on their children’s adolescent development (Pearson and Wilkinson 2013).

  2. (2)

    Conflict resolution: prior research has revealed the paradox that a person’s beloved partner, such as their significant other, is often the individual with whom they engage in harmful behavior during conflicts. The negative reaction could be one of the most challenging issues in a relationship (Alonso-Ferres et al. 2021). Therefore, it is imperative to resolve conflicts in a successful manner. Computer-mediated communication (CMC) has emerged as a novel approach to conflict resolution, and researchers have investigated this matter, concluding that there are no disparities in the levels of pain, anger, and conflict resolution between face-to-face and CMC discussions (Pollmann et al. 2020). Another study explored the neural mechanisms during conflict resolution, and researchers discovered that mediation could improve conflict resolution and was linked to elevated activity in the nucleus accumbens, a crucial area in the brain’s reward circuit (Rafi et al. 2020).

  3. (3)

    Social relationships: long-term relationships play a critical role in maintaining the mental health of both humans and animals. Positive emotions and emotional experiences, such as romantic or platonic love, are intricately linked to the formation and sustenance of social bonds. To gain insights into how social emotions manifest in both humans and animals, researchers integrated brain imaging studies of emotions associated with social connections (Zablocki-Thomas et al. 2022). From an ecological and cross-cutting perspective, another study found that Black Americans viewed their partner’s interactions around discrimination as an opportunity for their romantic partner to provide support, as revealed in semi-structured interviews (Rice 2023). Furthermore, given the unique nature of romantic relationships in social interactions, researchers used functional magnetic resonance imaging (fMRI) techniques to investigate the neurobiological mechanisms of such relationships (Eckstein et al. 2023), which could serve as a reference for the preservation and cultivation of social relationships.

To our knowledge, our study represented a novel application of quantitative bibliometric tools such as CiteSpace and VOSviewer to analyze the literature on romantic love over the past decade. While our analysis yielded intriguing insights into the research landscape of this field, our study was not without limitations. First and foremost, our sample was limited to articles and reviews available in a single database, and thus, may not have been fully representative of the entire research landscape on this topic. Second, the current study restricted our data collection to English-language publications, and future studies may benefit from including publications in other languages to ensure a more comprehensive analysis. Additionally, including different types of publications, such as conference papers and working papers, might have provided further insights into recent advancements in the field. Furthermore, it could be acknowledged that the analysis in the current study could be expanded to consider the contributions of other scholars and institutions in the field, beyond those captured by our data set. Finally, while the bibliometric tools used in our analysis were objective, our interpretation of the results remained subjective and may have been subject to varying interpretations.

Concluding remarks

Research significance and future development

The present study’s comprehensive analysis of the literature on romantic love, as well as its reporting of research findings across diverse domains over the past decade, offered a solid groundwork for future research and potential worldwide applications. From 2013 to 2022, a staggering 6858 articles and reviews on romantic love were published globally, indicating a bright future for this field of inquiry. In terms of research potency, the United States led the pack, with the University of California System accounting for the majority of publications in the area of romantic love, and Emily A. Impett ranking as the most prolific contributor. The Journal of Social and Personal Relationships had published the most articles on romantic love research, while the most recent trends in romantic love-related keywords included “same-sex,” “conflict resolution,” and “social relationships.” The current research was predominantly centered around intimate relationships, evolutionary psychology, sexual orientation, and symptoms of depression. The trends elucidated by these findings underscore the holistic and interdisciplinary nature of romantic love within the realms of psychology, sociology, biology, and neuroscience. Subsequent investigations into romantic love hold the promise of a more profound amalgamation of methodologies derived from psychology and neuroscience, thereby illuminating the physiological underpinnings of love and emotional experiences. This prospect entails a meticulous exploration of brain activity, probing how intricate psychological processes intertwine with biology to forge the intricacies of romantic relationships. Furthermore, romantic love research stands poised to cultivate seamless integration and interdisciplinary cooperation across a spectrum of fields in the future, yielding profound ramifications.

Method limitation

The current study, which utilized tools such as CiteSpace and Vosviewer for a quantitative analysis of the literature on romantic love over the past 10 years, is the first of its kind to our knowledge. Our investigation, though producing intriguing results through bibliometric analysis and visualization of related articles, is not without its limitations. Firstly, the samples utilized were limited to a single database (WOS), which may not encompass all relevant publications on the subject. Secondly, the scope of our data collection was limited to articles and reviews in English only, leaving out potential information from other types of publications such as working papers and conference papers. In future studies, a broader consideration of different languages should also be given. Additionally, the neural mechanism and physiological function of romantic love remain an under-researched area with limited empirical evidence to support ongoing controversy.