Facial-Expression and Gaze-Selective Responses in the Monkey Amygdala

Kari L. Hoffman, Katalin M Gothard, Michael C Schmid, Nikos K. Logothetis

Research output: Contribution to journalArticle

183 Citations (Scopus)

Abstract

The social behavior of both human and nonhuman primates relies on specializations for the recognition of individuals, their facial expressions, and their direction of gaze [1-5]. A broad network of cortical and subcortical structures has been implicated in face processing, yet it is unclear whether co-occurring dimensions of face stimuli, such as expression and direction of gaze, are processed jointly or independently by anatomically and functionally segregated neural structures. Awake macaques were presented with a set of monkey faces displaying aggressive, neutral, and appeasing expressions with head and eyes either averted or directed. BOLD responses to these faces as compared to Fourier-phase-scrambled images revealed widespread activation of the superior temporal sulcus and inferotemporal cortex and included activity in the amygdala. The different dimensions of the face stimuli elicited distinct activation patterns among the amygdaloid nuclei. The basolateral amygdala, including the lateral, basal, and accessory basal nuclei, produced a stronger response for threatening than appeasing expressions. The central nucleus and bed nucleus of the stria terminalis responded more to averted than directed-gaze faces. Independent behavioral measures confirmed that faces with averted gaze were more arousing, suggesting the activity in the central nucleus may be related to attention and arousal.

Original languageEnglish (US)
Pages (from-to)766-772
Number of pages7
JournalCurrent Biology
Volume17
Issue number9
DOIs
StatePublished - May 1 2007

Fingerprint

amygdala
Facial Expression
Amygdala
Haplorhini
monkeys
Chemical activation
Accessories
Processing
Septal Nuclei
Social Behavior
Macaca
Temporal Lobe
Direction compound
Arousal
social behavior
Primates
cortex
eyes
Head

Keywords

  • SYSNEURO

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

Facial-Expression and Gaze-Selective Responses in the Monkey Amygdala. / Hoffman, Kari L.; Gothard, Katalin M; Schmid, Michael C; Logothetis, Nikos K.

In: Current Biology, Vol. 17, No. 9, 01.05.2007, p. 766-772.

Research output: Contribution to journalArticle

Hoffman, Kari L. ; Gothard, Katalin M ; Schmid, Michael C ; Logothetis, Nikos K. / Facial-Expression and Gaze-Selective Responses in the Monkey Amygdala. In: Current Biology. 2007 ; Vol. 17, No. 9. pp. 766-772.
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