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PubMed · 11006994

What is extinguished in auditory extinction?

L Y Deouell·N Soroker
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Abstract

Extinction is a frequent sequel of brain damage, whereupon patients disregard (extinguish) a contralesional stimulus, and report only the more ipsilesional stimulus, of a pair of stimuli presented simultaneously. We investigated the possibility of a dissociation between the detection and the identification of extinguished phonemes. Fourteen right hemisphere damaged patients with severe auditory extinction were examined using a paradigm that separated the localization of stimuli and the identification of their phonetic content. Patients reported the identity of left-sided phonemes, while extinguishing them at the same time, in the traditional sense of the term. This dissociation suggests that auditory extinction is more about acknowledging the existence of a stimulus in the contralesional hemispace than about the actual processing of the stimulus.

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Acoustic StimulationAdultAgedAttentionAuditory Perceptual DisordersBrain InjuriesCerebral CortexExtinction, PsychologicalFemaleFunctional LateralityHumansLanguage TestsMaleMiddle AgedOrientationPerceptual DisordersPsychomotor PerformanceSound LocalizationSpeech PerceptionStrokeJournal ArticleResearch Support, Non-U.S. Gov't

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L Y Deouell, N Soroker. 2000-09-11. What is extinguished in auditory extinction?. https://doi.org/10.1097/00001756-200009110-00046

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