温・冷刺激予告シグナルに伴う末梢血管反応と脳波変動

概要

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We investigated changes in the amplitude of differential digital photoplethysmogram (ΔDPG) and the EEG power spectrum before cold and hot water immersion (foreperiod), and during immersion in six male subjects. During the foreperiod of hot water immersion, the ΔDPG amplitude decreased and the beta power (13.0-19.8 Hz) decreased at Fz, P3 and P4. Also, during the foreperiod of cold water immersion the ΔDPG amplitude decreased, but the alpha2 power (10.0-12.8 Hz) decreased at C3 and P3. The ΔDPG amplitude decreased during hot and cold water immersion. During hot water immersion, the betal power decreased at P4. During cold water immersion, the alpha2 power decreased at C3 and P3, and betal power decreased at C3. From these results, it was concluded that the EEG power spectrum and sympathetic nerve activity changed preceding the cold and hot water stimulation, and that these changes might be related to motor preparation and stimulus anticipation.
日本運動生理学会の論文
1997-08-30