期刊
PSYCHOLOGICAL REVIEW
卷 117, 期 2, 页码 541-574出版社
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/a0019077
关键词
basal ganglia; neural networks; computational modeling; procedural learning
资金
- Institute of Education Sciences [R305H030016]
- Air Force Office of Scientific Research [FA9550-08-1-0404]
- NATIONAL INSTITUTE OF MENTAL HEALTH [R01MH068243] Funding Source: NIH RePORTER
The basal ganglia play a central role in cognition and are involved in such general functions as action selection and reinforcement learning. Here, we present a model exploring the hypothesis that the basal ganglia implement a conditional information-routing system. The system directs the transmission of cortical signals between pairs of regions by manipulating separately the selection of sources and destinations of information transfers. We suggest that such a mechanism provides an account for several cognitive functions of the basal ganglia. The model also incorporates a possible mechanism by which subsequent transfers of information control the release of dopamine. This signal is used to produce novel stimulus-response associations by internalizing transferred cortical representations in the striatum. We discuss how the model is related to production systems and cognitive architectures. A series of simulations is presented to illustrate how the model can perform simple stimulus response tasks, develop automatic behaviors, and provide an account of impairments in Parkinson's and Huntington's diseases.
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