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Jason Friedman's literature database Displays records where serial is equal to 34 2024-03-19T03:49:04+00:00 Jason Friedman's literature database write.to.jason@gmail.com https://refbase.nfshost.com/ Web Reference Database (http://refbase.sourceforge.net) https://refbase.nfshost.com/img/favicon.ico https://refbase.nfshost.com/img/logo.png https://refbase.nfshost.com/show.php?where=serial%20%3D%2034&exportType=xml&submit=Export&exportFormat=Atom%20XML 1 1 1 https://refbase.nfshost.com/show.php?record=34 <div xmlns="http://www.w3.org/1999/xhtml">Characteristics of the nociceptive withdrawal response elicited under aware and unaware conditions</div> 2012-12-31T14:30:09+00:00 2012-12-31T14:22:19+00:00 Jason Friedman
Liebermann, D. G., & Defrin, R. (2009). Characteristics of the nociceptive withdrawal response elicited under aware and unaware conditions. J Electromyogr Kinesiol, 19(2), e114–22.
BACKGROUND: Nociceptive withdrawal reflexes (NWR) are subject to supraspinal modulation. Therefore, awareness about a noxious stimulation may affect its characteristics. The goal of this study was to investigate the effect of different degrees of awareness on the NWR. METHOD: Eight subjects performed back and forth hand movements from a common starting point towards four visual targets during which NWR was evoked when subjects were either unaware or aware of a noxious stimulation (unaware-NWR and aware-NWR). For the comparison between the NWR under both conditions, onset latencies and kinematic variables were computed respectively from the recorded Biceps Brachii EMG and from the spatial coordinates of hand reflective markers. RESULTS: The onset latency of unaware-NWR (mean+/-SD 73.9+/-13 ms) was significantly shorter than that of the aware-NWR (91.1+/-27 ms, p<0.05). The total duration of the muscular activation was shorter in unaware-NWR than in aware-NWR. The slopes of the tangential velocity-time curves were steeper for unaware-NWR than for aware-NWR (p=0.057). CONCLUSIONS: The results suggest that supraspinal regulation of NWR under different degrees of awareness involves the re-parameterization of selected spatiotemporal aspects of a pre-structured motor response.
Characteristics of the nociceptive withdrawal response elicited under aware and unaware conditions Liebermann, D.G. Defrin, R. info:doi/10.1016/j.jelekin.2007.10.006 info:pmid/18063387 openurl:?ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fhttps%3A%2F%2Frefbase.nfshost.com%2F&genre=article&atitle=Characteristics%20of%20the%20nociceptive%20withdrawal%20response%20elicited%20under%20aware%20and%20unaware%20conditions&title=Journal%20of%20Electromyography%20and%20Kinesiology%20%3A%20Official%20Journal%20of%20the%20International%20Society%20of%20Electrophysiological%20Kinesiology&stitle=J%20Electromyogr%20Kinesiol&issn=1050-6411&date=2009&volume=19&issue=2&aulast=Liebermann&aufirst=D.G.&au=Defrin%2C%20R.&id=info%3Adoi%2F10.1016%2Fj.jelekin.2007.10.006&sid=refbase%3AJF citekey:Liebermann+Defrin2009 Liebermann, D. G., & Defrin, R. (2009). Characteristics of the nociceptive withdrawal response elicited under aware and unaware conditions. J Electromyogr Kinesiol, 19(2), e114-22. 2009 JournalArticle text Adult Arm/*physiopathology Attention *Awareness Cues Female Humans Male Movement *Muscle Contraction Muscle, Skeletal/*physiopathology Pain/*physiopathology *Reflex *Startle Reaction url:http://www.ncbi.nlm.nih.gov/pubmed/18063387 English 1050-6411 Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology 2009 19 2 114 22