Loss of global visual and auditory processing following right temporal lobe lesion

Author(s): Mottron, L., Peretz, I., Schiavetto, A., Hebert, S., Decarie, J. C.

Journal/Book: Brain Cognition. 1999; 40: 525 B St, Ste 1900, San Diego, CA 92101-4495, USA. Academic Press Inc. 162-166.

Abstract: Theories of perception emphasize the difference in efficiency with which ''wholes'' and ''parts'' are processed by each hemisphere, the right hemisphere being associated with global processing and the left with local processing. Evidence in favor of this dissociation stems from studies of visual perception, although recent work suggests that it may also apply to auditory processing. We report the first case study that indicates a crucial role of the right temporal lobe in this global-local dichotomy for both visual and auditory processing. The patient, a child with a right-temporal lobe lesion, showed a loss of global perceptual processing that interfered with her recognition of hierarchical visual stimuli as well as with her discrimination Of melodies.

Note: Article Lassonde M, Univ Montreal, Grp Rech Neuropsychol Expt, CP 6128, Succ Ctr Ville, Montreal, PQ H3C 3J7, CANADA

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