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Dynamic FacesInsights from Experiments and Computation$
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Cristobal Curio, Heinrich H. Bulthoff, and Martin A. Giese

Print publication date: 2010

Print ISBN-13: 9780262014533

Published to MIT Press Scholarship Online: August 2013

DOI: 10.7551/mitpress/9780262014533.001.0001

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Engaging Neocortical Networks with Dynamic Faces

Engaging Neocortical Networks with Dynamic Faces

(p.105) 8 Engaging Neocortical Networks with Dynamic Faces
Dynamic Faces

Stephen V. Shepherd

Asif A. Ghazanfar

The MIT Press

This chapter discusses neurophysiological aspects of dynamics, including gaze, attention, and vocal signals during the perception of expressions. A link is established between the perception of facial dynamics and vocalization after examining behavioral and electrophysiological evidence. The similarity between eye-movement patterns of rhesus monkeys viewing dynamic vocalizing faces and human eye-movement patterns established a relationship between dynamic visual and vocalization behaviors for both monkeys and humans. Mimicry, which takes place at multiple levels of abstraction, plays a role in the perception of speech as it is triggered by the gaze and perception of expression. Dynamic social and nonsocial environmental cues have an impact on the importance of an emotional signal and the neural activity initiated by it.

Keywords:   vocal signals, facial dynamics, rhesus monkeys, eye-movement patterns, mimicry, neural activity

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