Development of the macaque face-patch system

Autor: Peter F. Schade, Krishna Srihasam, Margaret S. Livingstone, Justin L. Vincent, Tristram Savage, Michael J. Arcaro
Rok vydání: 2017
Předmět:
Zdroj: Nature Communications
Nature Communications, Vol 8, Iss 1, Pp 1-12 (2017)
ISSN: 2041-1723
DOI: 10.1038/ncomms14897
Popis: Face recognition is highly proficient in humans and other social primates; it emerges in infancy, but the development of the neural mechanisms supporting this behaviour is largely unknown. We use blood-volume functional MRI to monitor longitudinally the responsiveness to faces, scrambled faces, and objects in macaque inferotemporal cortex (IT) from 1 month to 2 years of age. During this time selective responsiveness to monkey faces emerges. Some functional organization is present at 1 month; face-selective patches emerge over the first year of development, and are remarkably stable once they emerge. Face selectivity is refined by a decreasing responsiveness to non-face stimuli.
Development of neural circuits for face recognition is not well studied in primates. Here the authors longitudinally track responses to faces in monkeys from about a month of age to two years and demonstrate that face-selective responses emerge in inferotemporal cortex early and gradually stabilize over time.
Databáze: OpenAIRE