August 2010
Volume 10, Issue 7
Free
Vision Sciences Society Annual Meeting Abstract  |   August 2010
Exploring the perceptual spaces of faces, cars, and birds in children and adults
Author Affiliations
  • Tamara L. Meixner
    Department of Psychology, University of Victoria
  • Justin Kantner
    Department of Psychology, University of Victoria
  • James W. Tanaka
    Department of Psychology, University of Victoria
Journal of Vision August 2010, Vol.10, 571. doi:10.1167/10.7.571
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      Tamara L. Meixner, Justin Kantner, James W. Tanaka; Exploring the perceptual spaces of faces, cars, and birds in children and adults. Journal of Vision 2010;10(7):571. doi: 10.1167/10.7.571.

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Abstract

To date, much of the developmental research concerning age-related changes in face processing has focused on the type of information and the specific strategies utilized by children during face recognition. Other aspects of facial recognition, such as the principles governing organization of individual face exemplars and other objects in perceptual memory, have been less extensively investigated. The present study explores the organization of face, bird, and car objects in perceptual memory using a morphing paradigm. Children ages five-six, seven-eight, nine-ten, and eleven-twelve, and adults were shown a series of morphs created with equal contributions from typical and atypical face, bird, and car parent images. Participants were asked to judge whether each 50/50 morph more strongly resembled the typical or the atypical parent image from which it was created. Children in all age groups and adults demonstrated a systematic atypicality bias for faces and birds: the 50/50 face (bird) morph was judged as appearing more similar to the atypical parent face (bird) than the typical parent face (bird). Interestingly, the magnitude of the atypicality bias remained robust and stable across all age groups, indicating an absence of age-related differences. No reliable atypicality bias emerged for the car category. Collectively, these findings establish that by the age of five, children are sensitive to the structure and density of face and bird probes, and are capable of encoding and organizing face, bird, and car exemplars into a perceptual space that is strikingly similar to that of an adult's. These results suggest that category organization, for both children and adults, follows a distance-density principle (Krumhansl, 1978) where the perceived similarity between any two category exemplars is attributed to both their relative distance and the density of neighboring exemplars in the perceptual space.

Meixner, T. L. Kantner, J. Tanaka, J. W. (2010). Exploring the perceptual spaces of faces, cars, and birds in children and adults [Abstract]. Journal of Vision, 10(7):571, 571a, http://www.journalofvision.org/content/10/7/571, doi:10.1167/10.7.571. [CrossRef]
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