Human Physiology

, Volume 31, Issue 2, pp 188–194 | Cite as

Change in the power of EEG activity in the α range in response to tonic nociceptive stimulation of the distal joint of the little finger

  • V. V. Garkavenko
  • A. V. Gorkovenko
  • E. P. Man’kovskaya
  • A. N. Shevko
  • E. B. Lyskov
  • A. I. Kostyukov


Examination of 12 healthy volunteers aged 20–56 years was performed to study the EEG changes caused by a tonic squeeze of the distal joint of the little finger of the left and then the right hand. This stimulation caused painful sensations of different intensity (pain on the right was stronger). Spectral power was measured in the (α 1 (8–10.5 Hz) and (α2 ranges (10.5–13 Hz) under different conditions. Weak pain led to an increase in the power of the (α1 and α2 ranges in the occipital regions. With strong pain, the power of α1 waves increased bilaterally in the posterior regions (O1, O2, T6), as well as in the left frontal region (F3, F7). The powers of the α1 and α2 ranges substantially increased relative to the background level after the strong nociceptive stimulation ceased. This finding testified to a latent and inertial character of its effect on the α-wave parameters.


Healthy Volunteer Human Physiology Background Level Spectral Power Frontal Region 
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Copyright information

© MAIK “Nauka/Interperiodica” 2005

Authors and Affiliations

  • V. V. Garkavenko
    • 1
  • A. V. Gorkovenko
    • 1
  • E. P. Man’kovskaya
    • 1
  • A. N. Shevko
    • 1
  • E. B. Lyskov
    • 2
    • 3
  • A. I. Kostyukov
    • 1
    • 3
  1. 1.Bogomolets Institute of PhysiologyNational Academy of Sciences of UkraineKievUkraine
  2. 2.Institute of the Human BrainRussian Academy of SciencesSt. PetersburgRussia
  3. 3.Musculoskeletal Research CenterUniversity of GávleUmeáSweden

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