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Baby Lab

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Tactual habituation and discrimination of form in infancy: A comparison with vision

Compared the tactual discriminative abilities out of the control of vision with visual discriminative abilities in 32 infants (aged 4-5.8 mo) to test the relevance of a habituation/reaction to novelty procedure in the tactual modality. 32 age- and sex-matched infants served as controls. An infant control procedure was used in both tactile and visual modalities. Results show that habituation and discrimination occurred tactually as well as visually, with the duration of holds decreasing more than the duration of looks. Accumulated holding time was 3 times longer than accumulated looking time. Analogies and discrepancies between tactual and visual habituations are discussed, and the problem of sensory dominance is raised. (15 ref) (PsycINFO Database Record (c) 2005 APA, all rights reserved)



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