Journal
PAIN
Volume 137, Issue 1, Pages 60-65Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1016/j.pain.2007.08.012
Keywords
nociception; somatic; attention; catastrophising; hypervigilance; chronic pain
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Emotional and attentional factors have been identified to play a significant role in modulating pain perception with negative emotions increasing pain sensitivity. Recent studies suggest that fearful images may activate the attentional components of fear driven behaviours and facilitate an attentional bias or sensitivity toward noxious stimuli. The current investigation examines whether priming of pain-related fear will affect performance by increasing sensitivity to punctuate heat stimuli. A modified version of the visual dot probe task was employed to provide priming of pain-related fear and a heat detection task was used to measure the effects of priming on sensitivity. The results indicated a significant facilitation of heat and pain perception at varying temperatures following emotional priming. In particular, there was an increase in the bias toward reporting a heat stimulus following emotional priming. The findings emphasise the efficacy of the visual dot probe task as a method of priming and provide a possible method for probing hypervigilance in chronic pain patients. (C) 2007 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved.
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