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Pubmed for Handhelds

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  • Title: Haptic identification of raised-line drawings: high visuospatial imagers outperform low visuospatial imagers.
    Author: Lebaz S, Jouffrais C, Picard D.
    Journal: Psychol Res; 2012 Sep; 76(5):667-75. PubMed ID: 21695471.
    Abstract:
    It has been assumed (Lederman et al. 1990, Perception & psychophysics) that a visual imagery process is involved in the haptic identification of raised-line drawings of common objects. The finding of significant correlations between visual imagery ability and performance on picture-naming tasks was taken as experimental evidence in support of this assumption. However, visual imagery measures came from self-report procedures, which can be unreliable. The present study therefore used an objective measure of visuospatial imagery abilities in sighted participants and compared three groups of high, medium and low visuospatial imagers on their accuracy and response times in identifying raised-line drawings by touch. Results revealed between-group differences on accuracy, with high visuospatial imagers outperforming low visuospatial imagers, but not on response times. These findings lend support to the view that visuospatial imagery plays a role in the identification of raised-line drawings by sighted adults.
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