BibTeX
@MISC{Liang_top-downanticipatory,
author = {Hualou Liang and Hongbin Wang},
title = {Top-down anticipatory control in . . . },
year = {}
}
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Abstract
The prefrontal cortex has been implicated in a wide variety of executive functions, many involving some form of anticipatory attention. Anticipatory attention involves the pre-selection of specific sensory circuits to allow fast and efficient stimulus processing and a subsequently fast and accurate response. It is generally agreed that the prefrontal cortex plays a critical role in anticipatory attention by exerting a facilitatory "top-down" bias on sensory pathways. In this paper we review recent results indicating that synchronized activity in prefrontal cortex, during anticipation of visual stimulus, can predict features of early visual stimulus processing and behavioral response. Although the mechanisms involved in anticipatory attention are still largely unknown, we argue that the synchronized oscillation in prefrontal cortex is a plausible candidate during sustained visual anticipation. We further propose a learning hypothesis that explains how this top-down anticipatory control in prefrontal cortex is learned based on accumulated prior experience by adopting a Temporal Difference learning algorithm.
Keyphrases
prefrontal cortex top-down anticipatory control anticipatory attention synchronized oscillation critical role plausible candidate sensory pathway accurate response learning hypothesis facilitatory top-down bias visual stimulus executive function sustained visual anticipation recent result efficient stimulus processing early visual stimulus processing specific sensory circuit wide variety temporal difference learning algorithm synchronized activity behavioral response accumulated prior experience
