Perception of dynamic acoustic patterns by an individual with unilateral verbal auditory agnosia

Author(s): Peach, R. K., Xu, Y., Schneck, M., Manry, C.

Journal/Book: Brain Lang. 2000; 73: 525 B St, Ste 1900, San Diego, CA 92101-4495, USA. Academic Press Inc. 442-455.

Abstract: Previous studies have found that subjects diagnosed with verbal auditory agnosia (VAA) from bilateral brain Lesions may experience difficulties at the prephonemic level of acoustic processing. In this case study. We administered a series of speech and nonspech discrimination tests to an individual with unilateral VAA as a result of left-temporal-lobe damage. The results indicated that the subject's ability to perceive steady-state acoustic stimuli was relatively intact but his ability to perceive dynamic stimuli was drastically reduced. We conclude that this particular aspect of acoustic processing may be a major contributing factor that disables speech perception in subjects with unilateral VAA.

Note: Article Wang E, Rush Presbyterian St Lukes Med Ctr, Dept Neurol Sci, 1653 W Congress Pkwy, 203 SENN, Chicago,IL 60612 USA

Keyword(s): verbal auditory agnosia; pure word-deafness; speech acoustics; speech perception; auditory perception; PURE WORD-DEAFNESS; SOUND REPRESENTATION; SPEECH-PERCEPTION; DISORDER

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