Exploring the neural mechanisms behind social decision-making, cooperation, and aggressionNovember 13, 2017
WASHINGTON, DC -- Humans, primates, and many other animals are innately social, spending much of their lifetimes in the presence of other individuals, but little is known about the neural mechanisms that generate social behaviors. Recent advances offer insight into neural circuits and mechanisms that underlie social decision-making, cooperation, and aggression. The studies are being presented at Neuroscience 2017, the annual meeting of the Society for Neuroscience and the world's largest source of emerging news about brain science and health.
The neurobiology of social behaviors can be challenging to study partly due to the difficulty of recording brain activity in behaving animals. Advances in the design and durability of devices for recording brain activity have now enabled the targeted study of discrete brain structures during social behaviors, revealing the activation of a wide array of neural circuits during social interactions with other individuals.
Today's new findings show that:
- Stimulation of the CA2 region of the hippocampus, the brain's memory center, may drive aggression in mice, suggesting a means whereby social memory can control social aggression (Félix Leroy, abstract 426.03, see attached summary).
- Neuronal activity in the primate amygdala can predict choices made by a partner, suggesting the brain area plays a role in observational learning and social decision-making (Fabian Grabenhorst, abstract 789.06, see attached summary).
- Primate brain activity during a cooperative game implicates strategic thinking rather than empathy in social decision-making (Wei Song Ong, abstract 251.02, see attached summary).
- Neural activity in the primary motor cortices of two monkeys can become highly synchronized during a social task, carrying information about the task as well as the proximity of the two animals (Miguel Nicolelis, abstract 777.12, see attached summary).
The Society for Neuroscience (SfN) is an organization of nearly 37,000 basic scientists and clinicians who study the brain and nervous system.
Society for Neuroscience
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