Increase of the Bereitschaftspotential in simultaneous and sequential movements
作者： R. Benecke , J.P.R. Dick , J.C. Rothwell , B.L. Day , C.D. Marsden
DOI: 10.1016/0304-3940(85)90573-7
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摘要: The amplitude and duration of the Bereitschaftspotential were analysed in 9 normal subjects prior to four different motor tasks: (1) simple isotonic elbow flexion ('flex'), (2) isometric finger ('squeeze'), (3) simultaneous performance 'flex' 'squeeze', (4) sequential then 'squeeze'. was much larger slightly longer movements than same performed separately. amplitudes measured 150 75 ms electromyographic (EMG) onset prime mover, at time EMG onset. Changes size seen all leads (FCz, Cz, C3', C4') points. It is suggested that increase complex arm reflects a greater activation supplementary area before movements.
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