Abstract
Activities of individual neurons were recorded from the superior temporal sulcus (STS) of rhesus monkeys during the performance of a visual discrimination and memory task. Of 174 neurons analyzed in detail, 19 neurons showed sustained changes in discharge rates during the delay period (D neurons). All the D neurons showed responses during the presentation of the same stimulus and had higher selectivity compared to the remaining non-D neurons. The data indicated that a subgroup of highly selective visual neurons in the STS participate in short-term retention of these stimuli.
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