Auditory Evoked Potentials as Probes of Hemispheric Differences in Cognitive Processing

The amplitude of auditory evoked potentials recorded from the cerebral hemispheres to pairs of task-irrelevant tones was related to differential hemispheric engagement in ongoing cognitive activity (for example, verbal versus musical). The hemisphere hypothesized to be most engaged in the ongoing co...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1977-09, Vol.197 (4310), p.1295-1298
Main Authors: Shucard, D. W., Shucard, J. L., Thomas, D. G.
Format: Article
Language:English
Subjects:
Adult
Auditory Perception - physiology
Brain - physiology
Cerebral hemispheres
Cognition - physiology
Electrodes
Evoked Potentials
Female
Functional Laterality
Habituation
Habituation, Psychophysiologic - physiology
Humans
Keywords
Male
Mental stimulation
Music
Music cognition
Musical intervals
Right handedness
White noise
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Summary:The amplitude of auditory evoked potentials recorded from the cerebral hemispheres to pairs of task-irrelevant tones was related to differential hemispheric engagement in ongoing cognitive activity (for example, verbal versus musical). The hemisphere hypothesized to be most engaged in the ongoing cognitive task, as compared to the unengaged hemisphere, produced a greater potential difference between the temporal and reference electrode to the second of the tone pairs. These findings are related to "fast habituation" and "recovery cycle."
ISSN:0036-8075
1095-9203
DOI:10.1126/science.897671