The role of the anterior prefrontal cortex in human cognition
Article Abstract:
Distinct dorsal fronto-polar regions are selectively involved in branching processes when compared with other executive processes, according to research designed to identify brain regions involved in both delayed-response and dual-task performance. Functional magnetic resonance imaging was used to demonstrate that bilateral regions in the fronto-polar prefrontal cortex alone are selectively activated when an individual must keep in mind a main aim while undertaking concurrent sub-tasks. Branching-specific regions may play a significant role in processing goal-tree sequences.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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Attraction is relative not absolute
Article Abstract:
The region of the brain known as the orbitofrontal cortex could play an active role in the reinforcement contract effect that seems to take place in animal-learning studies. Research undertaken with monkeys trained in a modified delayed-response task indicates that many orbitofrontal neurons are sensitive to different rewards. This research introduces the relative attraction of the incentive as a new element in characterization of the orbitofrontal neuronal activity.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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Reward expectancy in primate prefrontal neurons
Article Abstract:
The prefrontal cortex influences the outcome of goal-directed behavior in monkeys. The delay activity in prefrontal neurons depends on the type of reward received for the behavioral response, and the way in which it is given. Dorsolateral prefrontal neurons are involved in the expectancy of the specific reward, or the goal for the behavioral response. Prefrontal cortex processes different types of information in parallel.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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