Intensity modulation of TMS-induced cortical excitation: primary motor cortex.

  title={Intensity modulation of TMS-induced cortical excitation: primary motor cortex.},
  author={Peter T. Fox and Shalini Narayana and Nitin Tandon and Sarabeth P. Fox and Hugo Sandoval and Peter V. Kochunov and Charles Capaday and Jack L. Lancaster},
  journal={Human brain mapping},
  volume={27 6},
The intensity dependence of the local and remote effects of transcranial magnetic stimulation (TMS) on human motor cortex was characterized using positron-emission tomography (PET) measurements of regional blood flow (BF) and concurrent electromyographic (EMG) measurements of the motor-evoked potential (MEP). Twelve normal volunteers were studied by applying 3 Hz TMS to the hand region of primary motor cortex (M1(hand)). Three stimulation intensities were used: 75%, 100%, and 125% of the motor… CONTINUE READING
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