Task-Specific Neural Activity in the Primate Prefrontal Cortex
- 1 July 2000
- journal article
- Published by American Physiological Society in Journal of Neurophysiology
- Vol. 84 (1) , 451-459
Abstract
Real-world behavior is typically more complicated than a one-to-one mapping between a stimulus and response; the same stimulus can lead to different behaviors depending on the situation, or the same behavior may be cued by different stimuli. In such cases, knowledge of the formal demands of the task at hand is required. We found that in monkeys trained to alternate between three tasks, the activity of many neurons in the prefrontal cortex was task dependent. This included changes in overall firing rate, in firing-rate profiles (shape of responses over time), and in stimulus and response selectivity. These findings support the hypothesis that a major prefrontal function is the acquisition and implementation of task context and the “rules” used to guide behavior.Keywords
This publication has 27 references indexed in Scilit:
- The Prefrontal CortexNeuron, 1999
- Selective representation of relevant information by neurons in the primate prefrontal cortexNature, 1998
- Integration of What and Where in the Primate Prefrontal CortexScience, 1997
- The Frontal Cortex-Basal Ganglia System in PrimatesCritical Reviews™ in Neurobiology, 1996
- Neural Mechanisms of Selective Visual AttentionAnnual Review of Neuroscience, 1995
- Encoding of behavioral significance of visual stimuli by primate prefrontal neurons: relation to relevant task conditionsExperimental Brain Research, 1994
- Dissociation of Object and Spatial Processing Domains in Primate Prefrontal CortexScience, 1993
- Context, cortex, and dopamine: A connectionist approach to behavior and biology in schizophrenia.Psychological Review, 1992
- Cellular discharge in the dorsolateral prefrontal cortex of the monkey in cognitive tasksExperimental Neurology, 1982
- Motor conditional associative-learning after selective prefrontal lesions in the monkeyBehavioural Brain Research, 1982