Experimental Brain Research

, Volume 105, Issue 2, pp 321–324 | Cite as

Transcutaneous electrical stimulation and vibration of neck muscles in neglect

  • Hans-Otto Karnath
Research Note


Four neglect patients without visual field defects, one with a lesion of the right basal ganglia and three with a right, predominantly parietal lesion, were examined with a cancellation and a copying task before, during and after neck muscle vibration, during transcutaneous electrical stimulation of neck muscles and during vibration of hand muscles on the left side. In all patients, neck muscle vibration improved task performance, while transcutaneous electrical stimulation and hand vibration had little or no effect. The present results demonstrate that the effect of neck muscle vibration cannot be explained as arousal and activation due to unspecific sensory stimulation on the contralesional side of the body. They rather argue for the assumption that the compensatory effect of neck muscle vibration on neglect is an effect induced by the predominant activation of afferent Ia nerve fibres and their specific contribution to the central representation of egocentric space.

Key words

Neglect Transcutaneous electrical stimulation Neck muscle vibration Egocentric spatial reference frame Human 


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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • Hans-Otto Karnath
    • 1
  1. 1.Department of NeurologyUniversity of TübingenTübingenGermany

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