Reports

Alpha and Kappa Electroencephalogram Activity in Eyeless Subjects

+ See all authors and affiliations

Science  19 Mar 1971:
Vol. 171, Issue 3976, pp. 1159-1161
DOI: 10.1126/science.171.3976.1159

Abstract

Several reports have cast doubt on the cerebral origin of alpha and kappa electroencephalogram activity by charging that they are artifacts related to eye activity. Data are cited which eliminate the corneoretinal potential of the eyeball, tremor of the extraocular muscles, eye position, accommodation, and eye flutter as sources of alpha and kappa electroencephalogram activity. A subject with both eyes removed showed normal alpha and kappa electroencephalogram activity. Marked left-right differences in alpha activity were not found in one-eyed subjects whose eyes and extraocular muscles were completely removed on one side.

Related Content