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| Open AccessObservational learning computations in neurons of the human anterior cingulate cortex
Humans can learn alone or by watching others, strategies which may depend on similar or different neural networks. This study shows that people watching other players in a card game used computations in neurons of their rostral anterior cingulate cortex to learn through observation.
- Michael R. Hill
- , Erie D. Boorman
- & Itzhak Fried
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| Open AccessThe social contingency of momentary subjective well-being
Comparing oneself to others is inherently human but exactly how social comparison affects one's emotional state is unclear. Here the authors demonstrate that unequal social outcomes decrease happiness and these emotional impacts are proportional to individual levels of generosity.
- Robb B. Rutledge
- , Archy O. de Berker
- & Raymond J. Dolan
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| Open AccessCausative role of left aIPS in coding shared goals during human–avatar complementary joint actions
The neural mechanisms supporting imitative motor interactions have been well studied. However, considerably less is known about the mechanisms supporting complementary interactions. Here the authors demonstrate a causal role for left anterior intraparietal sulcus in coding complementary motor goals.
- Lucia M. Sacheli
- , Matteo Candidi
- & Salvatore M. Aglioti
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| Open AccessTrans-synaptic zinc mobilization improves social interaction in two mouse models of autism through NMDAR activation
Zinc is a nutritional factor implicated in autism spectrum disorders (ASDs), but evidence for a strong association and linking mechanism is largely lacking. Here, the authors report that trans-synaptic zinc mobilization rapidly rescues social interaction in two independent mouse models of ASD.
- Eun-Jae Lee
- , Hyejin Lee
- & Eunjoon Kim
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Separate neural representations for physical pain and social rejection
Physical pain and social rejection are believed to be processed by common neural substrates in the brain. Here Woo et al.combine brain imaging with pattern analysis to show that, in fact, pain and rejection are processed by distinct neural substrates that are located in similar anatomical brain regions.
- Choong-Wan Woo
- , Leonie Koban
- & Tor D. Wager
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Humans display a ‘cooperative phenotype’ that is domain general and temporally stable
It is generally assumed that a person’s cooperative behaviour is consistent, but direct evidence is lacking. Here, the authors show consistent patterns of an individual’s behaviour both in different cooperation games and through time, suggesting that an individual's cooperative behaviour is general and stable.
- Alexander Peysakhovich
- , Martin A. Nowak
- & David G. Rand
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The evolutionary origin of human hyper-cooperation
The evolutionary foundation of human prosociality remains poorly understood. Here, the authors show that extensive allomaternal care is the best predictor of prosocial behaviour among 15 primate species, including humans, which suggests that prosocial motivations arise along with cooperative breeding.
- J. M. Burkart
- , O. Allon
- & C. P. van Schaik
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| Open AccessAudience preferences are predicted by temporal reliability of neural processing
Encephalographic brain recordings are often used to characterize neuronal dynamics at the network level in relation to specific behaviours. Here, Dmochowski et al. show that neural activity from a few individuals viewing popular media can predict population-level neural activity in thousands of individuals.
- Jacek P. Dmochowski
- , Matthew A. Bezdek
- & Lucas C. Parra
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Prefrontal cortex reactivity underlies trait vulnerability to chronic social defeat stress
Connectivity between the prefrontal cortex (PFC) and the amygdala (AMY) is implicated in responses to stress and regulation of affect. Here, the authors show that stress is regulated by changes in PFC–AMY coherence, PFC oscillatory activity and AMY oscillatory activity across the 2–7 Hz frequency band.
- Sunil Kumar
- , Rainbo Hultman
- & Kafui Dzirasa
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Transition from reciprocal cooperation to persistent behaviour in social dilemmas at the end of adolescence
Human societies are cooperative, yet the propensity to cooperate may vary with age. Here, Gutierrez-Roig et al.show that, while in adults the decision of whether or not to cooperate is based on previous actions, teenagers mostly follow the decisions of their peers, regardless of their previous actions.
- Mario Gutiérrez-Roig
- , Carlos Gracia-Lázaro
- & Angel Sánchez
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| Open AccessRavens notice dominance reversals among conspecifics within and outside their social group
Social intelligence requires the understanding of third-party relations, which is known to occur in humans and primates. Here, Massen et al.show that ravens respond differently to sound recordings of dominance interactions between other ravens, suggesting that ravens also understand third-party relations.
- Jorg J. M. Massen
- , Andrius Pašukonis
- & Thomas Bugnyar
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Social heuristics shape intuitive cooperation
Whether or not intuition favours cooperative decision making has been controversial. Rand et al.carry out a meta-analysis of 15 studies involving volunteers playing economic games, and confirm a role for intuition in cooperation, which varies according to the volunteers’ previous experience with similar games.
- David G. Rand
- , Alexander Peysakhovich
- & Joshua D. Greene
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Consistent individual differences in human social learning strategies
Social learning is crucial to the evolutionary success of humans. Here, the authors evaluate social learning strategies in a sample of human subjects and find that some individuals imitate the behaviours of their most successful peers, while others conform to the behaviour of the majority.
- Lucas Molleman
- , Pieter van den Berg
- & Franz J. Weissing
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| Open AccessNumerical processing in the human parietal cortex during experimental and natural conditions
Human neuronal activity during cognitive processing is usually studied under experimental conditions but activity under natural conditions is poorly understood. Here the authors develop a method to accurately characterize the activity of the same neuronal population under both conditions.
- Mohammad Dastjerdi
- , Muge Ozker
- & Josef Parvizi
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Automated long-term tracking and social behavioural phenotyping of animal colonies within a semi-natural environment
Quantification of the behavioural phenotype of animals within a group requires simultaneous position and identity tracking of multiple individuals. Here the authors report an automated tracking system that combines video- and RFID-tracking data and allows behavioural phenotyping of uniquely identified group-living animals.
- Aharon Weissbrod
- , Alexander Shapiro
- & Tali Kimchi
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Third-party social evaluation of humans by monkeys
Humans routinely socially evaluate other people based on interactions between third parties. Anderson and colleagues show that capuchin monkeys also negatively evaluate humans who explicitly refuse to help others.
- James R. Anderson
- , Hika Kuroshima
- & Kazuo Fujita
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Human hypocretin and melanin-concentrating hormone levels are linked to emotion and social interaction
The emotional state of humans depends on the temporal concentration of neurochemicals. Blouin et al. measure temporal changes in two neuropeptides, hypocretin and melanin-concentrating hormone, and find that hypocretin but not melanin-concentrating hormone is linked to positive emotions and social interaction.
- Ashley M. Blouin
- , Itzhak Fried
- & Jerome M. Siegel
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Dimensionality of brain networks linked to life-long individual differences in self-control
The ability to delay gratification in childhood correlates with the ability to exert self-control in adulthood. Berman and colleagues re-examine individuals that were studied 40 years ago and find that the individuals who are able to exert a high level of self-control have more efficient neural networks.
- Marc G. Berman
- , Grigori Yourganov
- & John Jonides
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| Open AccessDisplays of paternal mouse pup retrieval following communicative interaction with maternal mates
Parental responsibilities in mice are usually carried out by the mother of the pups. In this study, the authors show that when mothers are separated from their mouse pups, they emit ultrasonic vocalizations to their male partners, who respond by administering paternal care to the pups.
- Hong-Xiang Liu
- , Olga Lopatina
- & Haruhiro Higashida
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| Open AccessRapamycin reverses impaired social interaction in mouse models of tuberous sclerosis complex
Tuberous sclerosis complex is an autosomal dominant cognitive disorder caused by mutations affecting TSCgenes. Sato and colleagues examine tuberous sclerosis complex mutant mice and find that the behavioural and anatomical abnormalities can be reversed by inhibiting rapamycin-sensitive signalling pathways, even in adulthood.
- Atsushi Sato
- , Shinya Kasai
- & Masashi Mizuguchi