Apperceptive Deficits

If the person with auditory agnosia is unable to extract meaning from a stimulus because the initial analysis (perception) of the stimulus is flawed, then the higher cognitive mechanisms that would ordinarily assign meaning will not have sufficient information to perform adequately. Thus, central mechanisms for extracting meaning could be intact but unable to carry out their functions because the information that they receive is defective. An analogy might be a noisy telephone line. A person trying to understand speech coming over the line would not have a sufficiently clear signal to allow the information transfer to occur.

Encyclopedia of the Human Brain Volume 1

Copyright 2002, Elsevier Science (USA).

All rights reserved.

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