TY - JOUR
T1 - Social connections predict brain structure in a multidimensional free-ranging primate society
AU - Cayo Biobank Research Unit†
AU - Testard, Camille
AU - Brent, Lauren J.N.
AU - Andersson, Jesper
AU - Chiou, Kenneth L.
AU - Negron-Del Valle, Josue E.
AU - DeCasien, Alex R.
AU - Acevedo-Ithier, Arianna
AU - Stock, Michala K.
AU - Antón, Susan C.
AU - Gonzalez, Olga
AU - Walker, Christopher S.
AU - Foxley, Sean
AU - Compo, Nicole R.
AU - Bauman, Samuel
AU - Ruiz-Lambides, Angelina V.
AU - Martinez, Melween I.
AU - Skene, J. H.Pate
AU - Horvath, Julie E.
AU - Higham, James P.
AU - Miller, Karla L.
AU - Snyder-Mackler, Noah
AU - Montague, Michael J.
AU - Platt, Michael L.
AU - Sallet, Jérôme
N1 - Publisher Copyright: Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).
PY - 2022/4
Y1 - 2022/4
N2 - Reproduction and survival in most primate species reflects management of both competitive and cooperative relationships. Here, we investigated the links between neuroanatomy and sociality in free-ranging rhesus macaques. In adults, the number of social partners predicted the volume of the mid–superior temporal sulcus and ventral-dysgranular insula, implicated in social decision-making and empathy, respectively. We found no link between brain structure and other key social variables such as social status or indirect connectedness in adults, nor between maternal social networks or status and dependent infant brain structure. Our findings demonstrate that the size of specific brain structures varies with the number of direct affiliative social connections and suggest that this relationship may arise during development. These results reinforce proposed links between social network size, biological success, and the expansion of specific brain circuits.
AB - Reproduction and survival in most primate species reflects management of both competitive and cooperative relationships. Here, we investigated the links between neuroanatomy and sociality in free-ranging rhesus macaques. In adults, the number of social partners predicted the volume of the mid–superior temporal sulcus and ventral-dysgranular insula, implicated in social decision-making and empathy, respectively. We found no link between brain structure and other key social variables such as social status or indirect connectedness in adults, nor between maternal social networks or status and dependent infant brain structure. Our findings demonstrate that the size of specific brain structures varies with the number of direct affiliative social connections and suggest that this relationship may arise during development. These results reinforce proposed links between social network size, biological success, and the expansion of specific brain circuits.
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U2 - 10.1126/sciadv.abl5794
DO - 10.1126/sciadv.abl5794
M3 - Article
C2 - 35417242
SN - 2375-2548
VL - 8
JO - Science Advances
JF - Science Advances
IS - 15
M1 - eabl5794
ER -