Somatosensory evoked potentials and magnitude of perception

  title={Somatosensory evoked potentials and magnitude of perception},
  author={Dr. D. Johnson and Reinhart J{\"u}rgens and G. Kongehl and Hans Helmut Kornhuber},
  journal={Experimental Brain Research},
With step indentations of the index finger tip in randomized order, via a mechanostimulator, the tactile receptors of human skin were adequately stimulated. Recording the EEG over the contralateral and ipsilateral cortex, the evoked potentials and their 95% confidence limits were analysed. Simultaneously the psychophysical magnitude estimations were analysed. 1. The perceptual estimations were linearly related to step amplitude. 2. The early components of the E.P. show no obvious correlation to… CONTINUE READING

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