Size-sensitive perceptual representations underlie visual and haptic object recognition

Craddock, M. and Lawson, R. (2009) Size-sensitive perceptual representations underlie visual and haptic object recognition. PLoS ONE, 4 (11). e8009. ISSN 19326203

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A variety of similarities between visual and haptic object recognition suggests that the two modalities may share common representations. However, it is unclear whether such common representations preserve low-level perceptual features or whether transfer between vision and haptics is mediated by high-level, abstract representations. Two experiments used a sequential shape-matching task to examine the effects of size changes on unimodal and crossmodal visual and haptic object recognition. Participants felt or saw 3D plastic models of familiar objects. The two objects presented on a trial were either the same size or different sizes and were the same shape or different but similar shapes. Participants were told to ignore size changes and to match on shape alone. In Experiment 1, size changes on same-shape trials impaired performance similarly for both visual-to-visual and haptic-to-haptic shape matching. In Experiment 2, size changes impaired performance on both visual-to-haptic and haptic-to-visual shape matching and there was no interaction between the cost of size changes and direction of transfer. Together the unimodal and crossmodal matching results suggest that the same, size-specific perceptual representations underlie both visual and haptic object recognition, and indicate that crossmodal memory for objects must be at least partly based on common perceptual representations. © 2009 Craddock, Lawson.

Keywords:adult, article, controlled study, cost, depth perception, female, human, male, reaction time, tactile memory, visual memory, working memory, adolescent, brain, brain mapping, discrimination learning, memory, middle aged, pattern recognition, recognition, reproducibility, vision, Adolescent, Humans, Pattern Recognition, Visual, Recognition (Psychology), Reproducibility of Results, Visual Perception
Subjects:C Biological Sciences > C830 Experimental Psychology
C Biological Sciences > C800 Psychology
C Biological Sciences > C850 Cognitive Psychology
Divisions:College of Social Science > School of Psychology
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ID Code:30963
Deposited On:21 Feb 2018 13:18

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