Looming discs are perceived as an innate threat by flies and elicit a survival response. Here, the authors report that flies exhibit either an escape or freezing response depending on their walking speed and identify the involvement of a pair of neurons in mediating the behavior.
From Brain to Behaviour
Fiona Carr: neurological disease.
Jamie Horder: cognitive neuroscience, psychiatry and autism.
Sachin Ranade: systems and computational neuroscience.
Jerome Staal: neurodevelopment, plasticity and molecular neuroscience.
Welcome to the Nature Communications Editors’ Highlights webpage, 'From Brain to Behaviour'. Each month our editors select a small number of Articles recently published in Nature Communications that they believe are particularly interesting or important.
The aim is to provide a snapshot of some of the most exciting neuroscience research published at Nature Communications.
Make sure to check the Editors' Highlights page each month for new featured articles.
There are two subtypes of hippocampal theta oscillations that differ in frequency range, pharmacology, and behavioural correlates. Here, the authors report that activity of OLM interneurons in the ventral hippocampus mediates type 2 theta, associated with increased risk-taking in the presence of predator threat.
A hierarchical anti-Hebbian network model for the formation of spatial cells in three-dimensional space
Neurons in the hippocampal formation encode diverse spatial properties. Here, the authors present a hierarchical network model for 3D spatial navigation that accounts for the observed neuronal representations and predict as yet unreported cell types with planar selectivity.
Motor cortical neurons enable performance of a wide range of movements. Here, the authors report that dominant population activity patterns, the neural modes, are largely preserved across various tasks, with many displaying consistent temporal dynamics and reliably mapping onto muscle activity.
In a dynamic environment old evidence could be outdated. Here, the authors investigate the ability of rats to integrate and discount evidence provided by auditory clicks to infer a hidden, dynamic, state of the world and model the consequence of sensory noise to explain the source of errors.
In the ventral basal ganglia circuit, the ventral pallidum (VP) receives major inputs from the nucleus accumbens (NAc) and is involved in reward processing. Here, the authors report that, contrary to the accepted model, signals related to the relative value of reward in VP emerge before NAc and are more robust.
Attention affects stimulus response gain, but its impact without sensory drive is less known. Here, the authors show that attention is coded diversely in a population and is distinct between unstimulated and stimulated contexts, providing a contrast to normalized gain models of attention.
Odorous chemicals broadly activate subsets of olfactory receptors in the nose, but how individual receptors contribute to behavioral sensitivity is not clear. Here, the authors demonstrate that detection thresholds in mice are set solely by the highest affinity receptor for a given odorant.
Previous work has shown that the neural representation of value adapts to the recent history of rewards. Here, the authors report that a computational model based on divisive normalization over multiple timescales can explain changes in value coding driven by changes in the reward statistics.
Hippocampal projections to the anterior olfactory nucleus differentially convey spatiotemporal information during episodic odour memory
Hippocampus is necessary for integrating the context with sensory cues to retrieve memory for unique episodes. Here, the authors show that inhibiting topographically organized projections from hippocampus to the anterior olfactory nucleus independently impairs spatial and temporal odour memory recall.