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Right lateralized motor cortex activation during volitional blinking
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DOI：10.1002/ana.1063.png)
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Using (H2O)-O-15 positron emission tomography in 6 healthy volunteers, we found that self-initiated and externally cued blinking activated the right primary motor cortex and supplementary motor area (SMA). The left dorsolateral prefrontal cortex (DLPFC) and the rostral SMA showed greater activation during the self-initiated task compared to the externally cued task. This study confirms the hypothesis of right hemispheric lateralization of volitional blinking derived from observations in stroke patients. Furthermore, it underscores the role of DLPFC and rostral SMA in self-initiated movements, which has been found in similar experiments with hand movements.
Keyword:
CEREBRAL BLOOD-FLOW
POSITRON EMISSION TOMOGRAPHY
EXTERNALLY TRIGGERED MOVEMENTS
FUNCTIONAL NEUROANATOMY
PARKINSONS
DISEASE
BRAIN
ARM
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8.5K
被引数:
3.6W
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