volume 24, issue 4, P492-501 1988
DOI: 10.1037/0012-1649.24.4.492
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Pamela M. Ludemann, Charles A. Nelson

Abstract: AbstractCategorical perception, demonstrated as reduced discrimination of within-category relative to between-category differences in stimuli, has been found in a variety of perceptual domains in adults. To examine the development of categorical perception in the domain of facial expression processing, we used behavioral and event-related potential (ERP) methods to assess discrimination of within-category (happy-happy) and between-category (happy-sad) differences in facial expressions in 7-month-old infants. …

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