August 2014
Volume 14, Issue 10
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2014
Development of Category-Selective Domains in Infant Macaque Inferotemporal Cortex
Author Affiliations
  • Margaret Livingstone
    Department of Neurobiology, Harvard Medical Schoo
  • Justin Vincent
    Department of Neurobiology, Harvard Medical Schoo
  • Tristram Savage
    Department of Neurobiology, Harvard Medical Schoo
  • Krishna Srihasam
    Department of Neurobiology, Harvard Medical Schoo
Journal of Vision August 2014, Vol.14, 228. doi:10.1167/14.10.228
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      Margaret Livingstone, Justin Vincent, Tristram Savage, Krishna Srihasam; Development of Category-Selective Domains in Infant Macaque Inferotemporal Cortex. Journal of Vision 2014;14(10):228. doi: 10.1167/14.10.228.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

In humans and in monkeys inferotemporal cortex, the object recognition part of the visual pathway, is divided up into domains specialized for processing specific object categories, such as faces, text, places, and body parts. It is not known how innate programs and early experience interact to generate this parcellation. To illuminate this question we did functional MRI on infant and juvenile macaques. We have developed techniques for safely and non-invasively doing functional MRI in alert infant macaques. We have scanned monkeys as early as 3 months of age and thereafter as IT develops. We find a rostro-caudal gradient of development of visual responsiveness. We further find that in the youngest monkeys we have scanned (3 months & 6 months of age) IT initially does not show clear segregation into category-selective domains but does show robust retinotopic organization. Category-selective domains emerge during the second year of life. In two monkeys the earliest appearing domain is the anteriormost face patch.

Meeting abstract presented at VSS 2014

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