Dissociation of alpha and theta activity as a function of verbal and visuospatial tasks.

Dissociation of alpha and theta activity as a function of verbal and visuospatial tasks. Research Abstract Details 

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Dissociation of alpha and theta activity as a function of verbal and visuospatial tasks. Abstract Text:

EEG was recorded from P3 and P4 in 12 male subjects during a rest condition and while they performed a verbal and a visuospatial task. Power in the alpha and theta bands was derived from EEG epochs associated with task-related cognitive activity uncontaminated by response activity. Alpha power was significantly lower during performance on both tasks compared to the rest condition, but did not differ between tasks or hemispheres. Conversely, theta power was significantly higher during task performance, and, in the right hemisphere only, was higher in epochs recorded during the visuospatial as opposed to the verbal task. This difference between the tasks in right hemisphere theta correlated significantly with level of visuospatial performance as, to a lesser extent, did differences in left hemisphere theta. These results are discussed in terms of the sensitivity of different regions of the EEG spectrum to cognitive activity underlying performance on different types of task.

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Dissociation of alpha and theta activity as a function of verbal and visuospatial tasks. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Electroencephalography and clinical neurophysiolog

VOLUME: 53

Page Numbers: 201-7

Journal Abbreviation: Electroencephalogr Clin Neurop

ISSN: 0013-4694

DAY: 9

MONTH: Feb

YEAR: 1982

Dissociation of alpha and theta activity as a function of verbal and visuospatial tasks. Information

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LANGUAGE: eng

NlmUniqueID: 375035

Dissociation of alpha and theta activity as a function of verbal and visuospatial tasks. Keywords Mesh Terms:

KEYWORDS: Visual Perception

MESH TERMS: physiology

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Grant and Affiliation Information for Dissociation of alpha and theta activity as a function of verbal and visuospatial tasks.

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Country: NETHERLANDS

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MEDLINETA: Electroencephalogr Clin Neurop

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