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DOES THE ORBITOFRONTAL CORTEX SIGNAL VALUE?
| Citations: | 8 - 2 self |
BibTeX
@MISC{Schoenbaum_doesthe,
author = {Geoffrey Schoenbaum and Short Biosketch},
title = {DOES THE ORBITOFRONTAL CORTEX SIGNAL VALUE?},
year = {}
}
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Abstract
The orbitofrontal cortex has long been implicated in associative learning. Early work by Mishkin and Rolls showed that the orbitofrontal cortex was critical for rapid changes in learned behavior, a role that was reflected in the encoding of associative information by orbitofrontal neurons. Over the years, new data- particularly neurophysiological data- has increasingly emphasized the orbitofrontal cortex in signaling actual value. These signals have been reported to vary according to internal preferences and judgments and to even be completely independent of the sensory qualities of predictive cue, the actual rewards, and the responses required to obtain them. At the same time, increasingly sophisticated behavioral studies have shown that the orbitofrontal cortex is often unnecessary for simple value based behavior, and instead seems critical when information about specific outcomes must be used to guide behavior and learning. Here we will review these data and suggest a theory that potentially reconciles these two ideas, value versus specific outcomes, and bodies of work on the orbitofrontal cortex. References 1. Takahashi, Y., et al. The orbitofrontal cortex and ventral tegmental area are necessary for learning from unexpected outcomes. Neuron 62, 269-280 (2009).
Keyphrases
orbitofrontal cortex orbitofrontal cortex signal value ventral tegmental area associative learning associative information specific outcome actual value new data value versus specific outcome simple value learned behavior rapid change actual reward predictive cue neurophysiological data early work sensory quality orbitofrontal neuron unexpected outcome internal preference sophisticated behavioral study et al
