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RESEARCH ARTICLE Ethan R. Buch Peter J. Brasted Steven P. Wise
 

Summary: RESEARCH ARTICLE
Ethan R. Buch Peter J. Brasted Steven P. Wise
Comparison of population activity in the dorsal premotor cortex
and putamen during the learning of arbitrary visuomotor mappings
Received: 23 February 2005 / Accepted: 8 July 2005 / Published online: 12 November 2005
Springer-Verlag 2005
Abstract A previous study found that as monkeys
learned novel mappings between visual cues and re-
sponses, neuronal activity patterns evolved at approxi-
mately the same time in both the dorsal premotor cortex
(PMd) and the putamen. Here we report that, in both
regions, the population activity for novel mappings
came to resemble that for familiar ones as learning
progressed. Both regions showed activity differences on
trials with correct responses versus those with incorrect
ones. In addition to these common features, we observed
two noteworthy differences between PMd and putamen
activity during learning. After a response choice had
been made, but prior to feedback about the correctness
of that choice (reward or nonreward), the putamen

  

Source: Andrzejak, Ralph Gregor - Departament de Tecnologia, Universitat Pompeu Fabra

 

Collections: Computer Technologies and Information Sciences