| Prior information preshapes the population representation of movement direction in motor cortex. | |
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MedLine Citation:
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PMID: 9507975 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Single neuron activity was recorded in monkey motor cortex during the execution of pointing movements in six directions. The amount of prior information was manipulated by varying the range of precued directions. A distribution of neural population activation was constructed in the space of movement directions. This population representation of movement direction was preshaped by the precue. Peak location and width reflected the precued range of movement directions. From this preshaped form, the population representation evolved continuously in time and gradually in parameter space toward a more sharply peaked distribution centered on the parameter value specified by the response signal. A theoretical model of motor programming generated a similar temporal evolution of an activation field representing movement direction. |
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Authors:
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A Bastian; A Riehle; W Erlhagen; G Schöner |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Neuroreport Volume: 9 ISSN: 0959-4965 ISO Abbreviation: Neuroreport Publication Date: 1998 Jan |
Date Detail:
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Created Date: 1998-04-29 Completed Date: 1998-04-29 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9100935 Medline TA: Neuroreport Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 315-9 Citation Subset: IM |
Affiliation:
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Center for Research in Cognitive Neuroscience, CNRS, Marseille, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Macaca mulatta Models, Neurological Motor Cortex / cytology, physiology* Movement / physiology* Signal Transduction / physiology |
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