Area and Stimulus Specificity in the Transfer of Responses Conditioned to Intracranial Stimulation: A Replication

A monkey, conditioned to make avoidance responses to flickering light, failed to show any transfer of this response to auditory clicks, a steady light, or electrical stimulation of the frontal granular or occipital cortices. After reinforced electrical stimulation of the left occipital cortex, transfer was found to result from stimulation of the contralateral occipital cortex. Again, no transfer resulted from stimulation of the frontal granular cortex. These findings replicate those of an earlier study and suggest that under certain conditions inter-hemispheric transfer of a response learned to electrical stimulation of the cerebral cortex can be elicited only by stimulation of approximately homotopic cerebral loci.