Journal article
Dissociation between pain and the nociceptive blink reflex during psychological arousal
Clinical Neurophysiology, Vol.117(4), pp.851-854
2006
Abstract
To investigate the effect of psychological arousal on pain ratings and the R2 component of the electrically evoked blink reflex to a ‘pure’ noiciceptive stimulus. Pain ratings and R2 to a noiciceptive stimulus (pulse width 0.3 ms, 2 mA, delivered from a concentric electrode attached to the supraorbital region of the forehead) were investigated in 16 healthy participants before and during a serial subtraction task, and in 16 control participants who sat quietly during nociceptive stimulation. Pain ratings decreased whereas R2 amplitude increased during the serial subtraction task. Supra-spinal rather than spinal mechanisms inhibited pain perception during psychological arousal. Moreover, psychological arousal facilitated the R2 component of the blink reflex to a nociception-specific stimulus. Supra-spinal influences need to be considered during clinical evaluation of the trigeminal nociceptive blink reflex.
Details
- Title
- Dissociation between pain and the nociceptive blink reflex during psychological arousal
- Authors/Creators
- C. Koh (Author/Creator) - Murdoch UniversityP.D. Drummond (Author/Creator) - Murdoch University
- Publication Details
- Clinical Neurophysiology, Vol.117(4), pp.851-854
- Publisher
- Elsevier
- Identifiers
- 991005541780507891
- Copyright
- 2006 International Federation of Clinical Neurophysiology.
- Murdoch Affiliation
- School of Psychology
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 1 Clinical & Life Sciences
- 1.43 Anesthesiology
- 1.43.135 Neuropathic Pain
- Web Of Science research areas
- Clinical Neurology
- Neurosciences
- ESI research areas
- Neuroscience & Behavior