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Experimental Brain Research

, Volume 7, Issue 2, pp 158–168 | Cite as

Distribution of readiness potential, pre-motion positivity, and motor potential of the human cerebral cortex preceding voluntary finger movements

  • Lüder Deecke
  • Peter Scheid
  • Hans H. Kornhuber
Article

Summary

Potentials recorded from the scalp of human subjects preceding voluntary finger movements may be devided into 3 components:
  1. 1.

    a slowly increasing surface negative readiness potential which starts about 850 msec before movement and is bilaterally symmetrical over the pre- and post-central region with a maximum at the vertex;

     
  2. 2.

    a pre-motion positivity which is also bilaterally symmetrical and starts about 86 msec before the onset of EMG;

     
  3. 3.

    a surface negative motor potential which starts about 56 msec before the onset of movement in the EMG and has its maximum over the contralateral precentral hand area.

     

Key Words

Pre-motion cerebral potentials Readiness potential Pre-motion positivity Motor potential Man 

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References

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    Gilden, L., H.G. Vaughan, jr. and L.D. Costa: Summated human electroencephalographic potentials associated with voluntary movements. Electroenceph. clin. Neurophysiol. 20, 433–438 (1966).Google Scholar
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Copyright information

© Springer-Verlag 1969

Authors and Affiliations

  • Lüder Deecke
    • 1
    • 2
  • Peter Scheid
    • 1
    • 2
    • 3
  • Hans H. Kornhuber
    • 1
    • 2
  1. 1.Abteilung für NeurologieUniversität UlmGermany
  2. 2.Neurologische Universitätsklinik mit Abt. für Neurophysiologie Freiburg i. Br.Germany
  3. 3.Max-PIanck-Institut für Experimentelle Medizin Abteilung PhysiologieGöttingenGermany

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