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Is Face Processing Species-Specific During the First Year of Life?

Science  17 May 2002:
Vol. 296, Issue 5571, pp. 1321-1323
DOI: 10.1126/science.1070223

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Abstract

Between 6 and 10 months of age, the infant's ability to discriminate among native speech sounds improves, whereas the same ability to discriminate among foreign speech sounds decreases. Our study aimed to determine whether this perceptual narrowing is unique to language or might also apply to face processing. We tested discrimination of human and monkey faces by 6-month-olds, 9-month-olds, and adults, using the visual paired-comparison procedure. Only the youngest group showed discrimination between individuals of both species; older infants and adults only showed evidence of discrimination of their own species. These results suggest that the “perceptual narrowing” phenomenon may represent a more general change in neural networks involved in early cognition.

  • * To whom correspondence should be addressed. E-mail: o.pascalis{at}sheffield.ac.uk

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