p464fig12.61 (left column) A microstimulating electrode causes a spatial gradient of habituation.  (right column) The spatial gradient of habituation that is caused by microstimulation alters the order of saccadic performance of a stored sequence, but not which saccades are performed, using interactions between the prefrontal cortex (PFC) working memory and the supplemental eye field (SEF) saccadic choice.<BR>||  (left) Microstimulation causes habituation (Grossberg 1968). Stimulation caused habituation. Cells close to the stimulation site habituate most strongly. (right) Stimulation biases selection PFC-> SEF-> SEF. PFC Activity gradient in working memory, SEF Microstimulation causes habituation, During selection habituated nodes are less likely to win this competition.