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Change in the Power of EEG Activity in the a Range in Response to Tonic Nociceptive Stimulation of the Distal Joint of the Little Finger
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2005 (English)In: Human Physiology, ISSN 0362-1197, E-ISSN 1608-3164, Vol. 31, no 2, 188-94 p.Article in journal (Refereed) Published
Abstract [en]

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 alfa1 (8–10.5 Hz) and alfa2 ranges (10.5–13 Hz) under different conditions. Weak pain led to an increase in the power of the alfa1 and alfa2 ranges in the occipital regions. With strong pain, the power of alfa1 waves increased bilaterally in the posterior regions (O1,O2,T6), as well as in the left frontal region (F3,F7). The powers of the alfa1and alfa2 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 wave parameters.

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2005. Vol. 31, no 2, 188-94 p.
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URN: urn:nbn:se:hig:diva-2820DOI: 10.1007/s10747-005-0028-xOAI: oai:DiVA.org:hig-2820DiVA: diva2:119482
Available from: 2007-11-28 Created: 2007-11-28 Last updated: 2010-08-23Bibliographically approved

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Lyskov, Eugene
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Belastningsskadecentrum
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