Asymmetry of cortical activation during maximum and convenient tapping speed
| Autor: | Susan Koeneke, Torsten Wüstenberg, Kai Lutz, Lutz Jäncke |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Adult
Male Cerebellum Subdominant Functional Laterality 050105 experimental psychology Fingers 03 medical and health sciences 0302 clinical medicine Image Processing Computer-Assisted medicine Humans 0501 psychology and cognitive sciences Motor skill Brain Mapping General Neuroscience 05 social sciences Motor Cortex Magnetic Resonance Imaging Tapping rate medicine.anatomical_structure Motor Skills Finger tapping Tapping Female Primary motor cortex Psychology Neuroscience 030217 neurology & neurosurgery Motor cortex |
| Zdroj: | Neuroscience Letters. 373:61-66 |
| ISSN: | 0304-3940 |
| DOI: | 10.1016/j.neulet.2004.09.058 |
| Popis: | An effect of finger tapping rate on the hemodynamic response in primary motor cortex and the cerebellum has been well established over the last years (the rate effect). The present study compares the magnitude of this effect when either the dominant or subdominant hand is used by right and left handers. In contrast to previous studies maximum and convenient tapping rate for both hands are used as tapping tasks. The results confirm "rate effects" for the primary motor cortex and the cerebellum. In addition, a "rate effect" was found for the cingulate motor area. A novel finding is that the cortical and cerebellar "rate effects" are similar for the subdominant and for the dominant hand even though tapping rates are lower for the subdominant hand. This result demonstrates that the subdominant motor cortex and neurally connected cerebellar areas operate at suboptimal control levels although maximum neurophysiological activation has been reached during the maximum tapping task. |
| Databáze: | OpenAIRE |
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