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Oxytocin induces the formation of distinctive cortical representations and cognitions biased toward familiar mice
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Oxytocin induces the formation of distinctive cortical representations and cognitions biased toward familiar mice
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Journal Article
Oxytocin induces the formation of distinctive cortical representations and cognitions biased toward familiar mice
2024
Overview
Social recognition is essential for the formation of social structures. Many times, recognition comes with lesser exploration of familiar animals. This lesser exploration has led to the assumption that recognition may be a habituation memory. The underlying memory mechanisms and the thereby acquired cortical representations of familiar mice have remained largely unknown, however. Here, we introduce an approach directly examining the recognition process from volatile body odors among male mice. We show that volatile body odors emitted by mice are sufficient to identify individuals and that more salience is assigned to familiar mice. Familiarity is encoded by reinforced population responses in two olfactory cortex hubs and communicated to other brain regions. The underlying oxytocin-induced plasticity promotes the separation of the cortical representations of familiar from other mice. In summary, neuronal encoding of familiar animals is distinct and utilizes the cortical representational space more broadly, promoting storage of complex social relationships.
Recognition memory for other individuals forms quickly. Here the authors show that such memories are enabled by oxytocin and can be retrieved from reinforced and more distinct neural representations even when only limited sensory information is available.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 59/36
/ 631/378
/ 64/60
/ 9/30
/ Animals
/ Behavior, Animal - drug effects
/ Hormones
/ Humanities and Social Sciences
/ Male
/ Memory
/ Mice
/ Neuronal Plasticity - drug effects
/ Odorants
/ Odors
/ Olfactory Cortex - physiology
/ Oxytocin
/ Recognition, Psychology - drug effects
/ Recognition, Psychology - physiology
/ Science
