Correlations between Reaction Time and Cerebral Blood Flow during Motor Preparation
| Autor: | M.-P. Deiber, Mark Hallett, Barry Horwitz, Norihiro Sadato, Vicente Ibáñez |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Adult
Male Cerebellum medicine.diagnostic_test Movement Cognitive Neuroscience Brain Signal Fingers Normal volunteers medicine.anatomical_structure Neurology Cerebral blood flow Positron emission tomography Cerebrovascular Circulation Reaction Time medicine Humans Tomography Psychology Neuroscience Tomography Emission-Computed Biomedical engineering |
| Zdroj: | NeuroImage. 12:434-441 |
| ISSN: | 1053-8119 |
| DOI: | 10.1006/nimg.2000.0632 |
| Popis: | We show using positron emission tomography in normal volunteers that for four tasks involving motor preparation, regional cerebral blood flow in the ipsilateral cerebellum is negatively correlated with reaction time. Each of the tasks presented subjects with different amounts of advanced information (from none to partial to full information) prior to a signal to move one of two possible fingers in one of two possible directions. The cerebellum was the only brain area that was correlated with reaction time in all the conditions. These results are compatible with the idea that the cerebellum plays an important role in the preparation and initiation of motion. |
| Databáze: | OpenAIRE |
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