Abstract:
:Facial interactions are prominent behaviors in primates. Primate facial signaling, which includes the expression of emotions, mimicking of facial movements, and gaze interactions, is visually dominated. Correspondingly, in primate brains an elaborate network of face processing areas exists within visual cortex. But other mammals also communicate through facial interactions using additional sensory modalities. In rodents, multisensory facial interactions are involved in aggressive behaviors and social transmission of food preferences. The eusocial naked mole-rat, whose face is dominated by prominent incisors, uses facial aggression to enforce reproductive suppression. In burrow-living mammals like the naked mole-rat in particular, and in rodents in general, somatosensory face representations in cortex are enlarged. Diversity of sensory domains mediating facial communication might belie underlying common mechanisms. As a case in point, neurogenetics has revealed strongly heritable traits in face processing and identified gene defects that disrupt facial interactions both in humans and rodents.
journal_name
Curr Opin Neurobioljournal_title
Current opinion in neurobiologyauthors
Brecht M,Freiwald WAdoi
10.1016/j.conb.2011.12.003subject
Has Abstractpub_date
2012-04-01 00:00:00pages
259-66issue
2eissn
0959-4388issn
1873-6882pii
S0959-4388(11)00221-2journal_volume
22pub_type
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journal_title:Current opinion in neurobiology
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journal_title:Current opinion in neurobiology
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