Abstract:
:A neuroethological approach to human and nonhuman primate behavior and cognition predicts biological specializations for social life. Evidence reviewed here indicates that ancestral mechanisms are often duplicated, repurposed, and differentially regulated to support social behavior. Focusing on recent research from nonhuman primates, we describe how the primate brain might implement social functions by coopting and extending preexisting mechanisms that previously supported nonsocial functions. This approach reveals that highly specialized mechanisms have evolved to decipher the immediate social context, and parallel circuits have evolved to translate social perceptual signals and nonsocial perceptual signals into partially integrated social and nonsocial motivational signals, which together inform general-purpose mechanisms that command behavior. Differences in social behavior between species, as well as between individuals within a species, result in part from neuromodulatory regulation of these neural circuits, which itself appears to be under partial genetic control. Ultimately, intraspecific variation in social behavior has differential fitness consequences, providing fundamental building blocks of natural selection. Our review suggests that the neuroethological approach to primate behavior may provide unique insights into human psychopathology.
journal_name
Proc Natl Acad Sci U S Aauthors
Chang SW,Brent LJ,Adams GK,Klein JT,Pearson JM,Watson KK,Platt MLdoi
10.1073/pnas.1301213110subject
Has Abstractpub_date
2013-06-18 00:00:00pages
10387-94eissn
0027-8424issn
1091-6490pii
1301213110journal_volume
110 Suppl 2pub_type
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