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Oscillatory motor cortex-muscle coupling during painful laser and nonpainful tactile stimulation

Result description

Cortex-muscle coherence was computed between magnetoencephalographic (MEG) signals from the contralateral MI and electromyographic (EMG) signals from the hand muscles. Statistically significant coherence at approximately 20 Hz was found in 6 out of 7 subjects. The coherence increased phasically after both types of stimuli but significantly later after laser than tactile stimuli (mean +/- SEM peak latencies 1.05 +/- 0.12 s vs. 0.58 +/- 0.06 s; P < 0.05), and the coherence increase lasted longer after laser than tactile stimuli (0.87 +/- 0.09 s vs. 0.50 +/- 0.06 s, P < 0.05).

Keywords

Oscillatorymotorcortex-musclecouplingpainfullasernonpainfultactilestimulation

The result's identifiers

Alternative languages

  • Result language

    angličtina

  • Original language name

    Oscillatory motor cortex-muscle coupling during painful laser and nonpainful tactile stimulation

  • Original language description

    Cortex-muscle coherence was computed between magnetoencephalographic (MEG) signals from the contralateral MI and electromyographic (EMG) signals from the hand muscles. Statistically significant coherence at approximately 20 Hz was found in 6 out of 7 subjects. The coherence increased phasically after both types of stimuli but significantly later after laser than tactile stimuli (mean +/- SEM peak latencies 1.05 +/- 0.12 s vs. 0.58 +/- 0.06 s; P < 0.05), and the coherence increase lasted longer after laser than tactile stimuli (0.87 +/- 0.09 s vs. 0.50 +/- 0.06 s, P < 0.05).

  • Czech name

    Oscilační vazba mezi motorickou kůrou a svalem při bolestivé laserové a nebolestivé taktilní stimulaci

  • Czech description

    Kortiko-scalová koherence byla vypočtena mezi MEG signálem z kontralaterální M1 oblasti a EMG ze svalu ruky. Statisticky významná koherence byla nalezena u 6 ze 7 pokusných osob. Koherence fázicky vzrostla po podání jak laserového tak taktilního podnětu,ale s delší latencí (1.05 +/- 0.12 s vs. 0.58 +/- 0.06 s; P < 0.05) a trváním (0.87 +/- 0.09 s vs. 0.50 +/- 0.06 s, P < 0.05) po laserovém nez taktilním podnětu.

Classification

  • Type

    Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    ED - Physiology

  • OECD FORD branch

Result continuities

Others

  • Publication year

    2005

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Neuroimage

  • ISSN

    1053-8119

  • e-ISSN

  • Volume of the periodical

    26

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    8

  • Pages from-to

    793-800

  • UT code for WoS article

  • EID of the result in the Scopus database