Electroencephalographic system and method using factor structure

Details Electroencephalographic system and method using factor structure Electroencephalographic system and method using factor structure

1988-03-21

1990-04-03

Sykes, Angela D.

Surgery

Truss

Pad

128745, 128746, A61B 504

Patent

active

049131605

ABSTRACT:
In an electroencephalographic method and system for the quantitative analysis of brain waves, a programmed sequence of stimuli is automatically presented to a subject to evoke averaged evoked responses (AER's). The AER's are automatically analyzed by factor analysis in which each waveshape is reconstituted, as closely as possible, by a set of "basis waveshapes" (factors) held in memory. The "factor scores" (contributions of each factor) are Z transformed as a comparison against results from a normal population, and displayed as color-coded topographic maps of the head.

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