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  Perception of pain coincides with the spatial expansion of electroencephalographic dynamics in human subjects

Chen, A. C. N., & Herrmann, C. S. (2001). Perception of pain coincides with the spatial expansion of electroencephalographic dynamics in human subjects. Neuroscience Letters, 297(3), 183-186. doi:10.1016/S0304-3940(00)01696-7.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-D002-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-2972-F
Genre: Journal Article

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 Creators:
Chen, A. C. N., Author
Herrmann, Christoph S.1, Author              
Affiliations:
1MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634574              

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Free keywords: Electroencephalogram; Event-related oscillation; Gamma activity; Pain; Perception; Somatosensory evoked potentials
 Abstract: The dynamics of cortex driven by painful median nerve stimulation were investigated in event-related oscillation (ERO). We applied a wavelet time-frequency analysis to differentiate the brain dynamics between painful and non-painful somatosensory stimulation. The observed pattern to pain-induced effects exhibited a stepwise decrease of frequencies over time, starting around 26 ms over somatosensory cortex at 80 Hz, intermediate oscillations at 40 and 20 Hz around 40 ms, and reaching down to 10 Hz after 160 ms. This step-wise frequency decrease of ERO, coincident with spatial shift from the contralateral somatosensory area at 80 Hz to the centro-frontal brain at 40/20 Hz and final spatial expansion to the large region of centro-parietal areas at 10 Hz, may represent the cortical processes necessary to transfer sensory information from perceptual stages to subsequent cognitive stages in consciousness.

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Language(s): eng - English
 Dates: 2001
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 239680
ISI: 000166872600010
Other: P7062
DOI: 10.1016/S0304-3940(00)01696-7
 Degree: -

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Title: Neuroscience Letters
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 297 (3) Sequence Number: - Start / End Page: 183 - 186 Identifier: ISSN: 0304-3940
CoNE: https://pure.mpg.de/cone/journals/resource/954925512448