reward and reinforcement activity in the nucleus accumbens during learning

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ID: 244284
2014
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Abstract
The nucleus accumbens core (NAcc) has been implicated in learning associations between sensory cues and profitable motor responses. However, the precise mechanisms that underlie these functions remain unclear. We recorded single-neuron activity from the NAcc of primates trained to perform a visual-motor associative learning task. During learning, we found two distinct classes of NAcc neurons. The first class demonstrated progressive increases in firing rates at the go-cue, feedback/tone and reward epochs of the task, as novel associations were learned. This suggests that these neurons may play a role in the exploitation of rewarding behaviors. In contrast, the second class exhibited attenuated firing rates, but only at the reward epoch of the task. These findings suggest that some NAcc neurons play a role in reward-based reinforcement during learning.
Reference Key
gale2014frontiersreward Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;John Thomas Gale;Donald C Shields;Yumiko eIshizawa;Emad N Eskandar
Journal lasers in manufacturing and materials processing
Year 2014
DOI
10.3389/fnbeh.2014.00114
URL
http://journal.frontiersin.org/Journal/10.3389/fnbeh.2014.00114/full
Keywords
learning reward operant conditioning nucleus accumbens neuropsychiatry biological psychiatry

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