PET imaging for altered brain function evoked by exercise: measurements of changes in cerebral blood flow and neurotransmitters (original) (raw)
2017, Cerebral Blood Flow and Metabolism (Japanese journal of cerebral blood flow and metabolism)
PET imaging for altered brain function evoked by exercise: measurements of changes in cerebral blood flow and neurotransmitters
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運動の認識における身体内部および外部への能動的注意が脳活動に及ぼす影響
Rigakuryoho Kagaku, 2010
This study sought to clarify differences in brain activation during the motor cognition by directing subjects' voluntary attention toward an internal or external focus in response to verbal instructions. [Subjects] The subjects were eight right-handed healthy adults. [Methods] The study sought to verify differences in brain activation using functional near-infrared spectroscopy (fNIRS). [Results] A significant increase in oxygenated hemoglobin in the right prefrontal cortex and right parietal region was seen when voluntary attention was directed toward an internal focus with the right hand, and a similar increase in the left prefrontal cortex and left parietal region was seen when voluntary attention was directed toward an external focus with the left hand. [Conclusion] The results suggest that during motor cognition, functional differences of the right and left cerebral hemispheres are present in the form of lateralization in the same cerebral hemispheres as the movements. That is, the right fronto-parietal region takes charge when voluntary attention is directed toward an internal focus with the right hand, while the left fronto-parietal region does so when voluntary attention is directed toward an external focus with the left hand.
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