Format

Send to

Choose Destination
See comment in PubMed Commons below
Ann N Y Acad Sci. 2007 May;1104:270-88. Epub 2007 Mar 14.

A "good parent" function of dopamine: transient modulation of learning and performance during early stages of training.

Author information

1
Department of Psychology, Boston College, Chestnut Hill, MA 02467, USA. jon.horvitz@bc.edu

Abstract

While extracellular dopamine (DA) concentrations are increased by a wide category of salient stimuli, there is evidence to suggest that DA responses to primary and conditioned rewards may be distinct from those elicited by other types of salient events. A reward-specific mode of neuronal responding would be necessary if DA acts to strengthen behavioral response tendencies under particular environmental conditions or to set current environmental inputs as goals that direct approach responses. As described in this review, DA critically mediates both the acquisition and expression of learned behaviors during early stages of training, however, during later stages, at least some forms of learned behavior become independent of (or less dependent upon) DA transmission for their expression.

PMID:
17360799
PMCID:
PMC2827849
DOI:
10.1196/annals.1390.017
[Indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley Icon for PubMed Central
    Loading ...
    Support Center