Amygdala volume and social network size in humans

KC Bickart, CI Wright, RJ Dautoff, BC Dickerson… - Nature …, 2011 - nature.com
We found that amygdala volume correlates with the size and complexity of social networks in
adult humans. An exploratory analysis of subcortical structures did not find strong evidence …

The social brain meets neuroimaging

RIM Dunbar - Trends in cognitive sciences, 2012 - cell.com
Recent neuroimaging studies in humans have indicated that individual differences in social
network size correlate with amygdala volume and the volume of brain regions associated …

Intrinsic amygdala–cortical functional connectivity predicts social network size in humans

KC Bickart, MC Hollenbeck, LF Barrett… - Journal of …, 2012 - Soc Neuroscience
Using resting-state functional magnetic resonance imaging data from two independent
samples of healthy adults, we parsed the amygdala's intrinsic connectivity into three partially …

The social network-network: size is predicted by brain structure and function in the amygdala and paralimbic regions

R Von Der Heide, G Vyas… - Social cognitive and …, 2014 - academic.oup.com
The social brain hypothesis proposes that the large size of the primate neocortex evolved to
support complex and demanding social interactions. Accordingly, recent studies have …

Social network size affects neural circuits in macaques

J Sallet, RB Mars, MP Noonan, JL Andersson… - Science, 2011 - science.org
It has been suggested that variation in brain structure correlates with the sizes of individuals'
social networks. Whether variation in social network size causes variation in brain structure …

Connectivity-based segregation of the human striatum predicts personality characteristics

MX Cohen, JC Schoene-Bake, CE Elger… - Nature neuroscience, 2009 - nature.com
We found that personality characteristics are linked to dissociable connectivity streams in the
human brain. Whereas fiber tracts between a subcortical network, including the …

The social brain: Psychological underpinnings and implications for the structure of organizations

RIM Dunbar - Current Directions in Psychological Science, 2014 - journals.sagepub.com
The social-brain hypothesis refers to a quantitative relationship between social-group size
and neocortex volume in monkeys and apes. This relationship predicts a group size of …

The amygdala: is it an essential component of the neural network for social cognition?

DG Amaral, MD Bauman, JP Capitanio, P Lavenex… - Neuropsychologia, 2003 - Elsevier
Observations from human subjects with focal brain lesions and animal subjects with
experimental lesions have implicated a variety of brain regions in the mediation of social …

Shared neural coding for social hierarchy and reward value in primate amygdala

J Munuera, M Rigotti, CD Salzman - Nature neuroscience, 2018 - nature.com
The social brain hypothesis posits that dedicated neural systems process social information.
In support of this, neurophysiological data have shown that some brain regions are …

Social brain volume is associated with in-degree social network size among older adults

S Kwak, W Joo, Y Youm, J Chey - Proceedings of the …, 2018 - royalsocietypublishing.org
The social brain hypothesis proposes that large neocortex size evolved to support
cognitively demanding social interactions. Accordingly, previous studies have observed that …