The relation between cortical response to visual stimulation and changes in the alpha rhythm.

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  • SBS. Howard Bartley
    S. Howard Bartley
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Abstract
Electrograms of the rabbit's optic cortex when the eye was intermittently stimulated with light were examined to determine the modifications of the alpha rhythm. The data indicate that 2 different groups of elements are responsible for 2 of the salient features of the electrogram. The activity of one group is expressed in the specific cortical response to peripheral stimulation and the other in the later components of the complete outcome of stimulation. It is the activity of the latter group that is manifest in the alpha rhythm. The two groups interact. Blocking of the alpha rhythm is not a matter of inhibiting the activity of the alpha elements but rather temporally dispersing their activity-rest cycles. (PsycINFO Database Record (c) 2006 APA, all rights reserved)