Running Recognition of Configural Stimuli by Fornix-Transected Monkeys

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Abstract
Six Rhesus monkeys were trained in a running recognition task with visual-spatial configurations as the stimuli to be remembered. Following pre-operative training half the monkeys were subjected to fornix transection and half to a control operation. Fornix transection produced a severe and apparently permanent impairment. These results add to the evidence that fornix transection produces defects in memory which cannot be explained as secondary consequences of impairments of perception.