High Frequency Non-Invasive Stimulation Over the Spine: Effects on Mood and Mechanical Pain Tolerance in Normal Subjects

We investigated the effects of non-invasive high frequency (625Hz) stimulation over the spine on mechanical pain tolerance and subjective mood. Sixty healthy subjects were divided equally into three groups receiving either high intensity (250 V), low intensity (3–4 V) or sham electrical stimulation...

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Main Authors: A. D. Towell, D. Williams, S. G. Boyd
Format: Article
Language:English
Published: Wiley 1997-01-01
Series:Behavioural Neurology
Online Access:http://dx.doi.org/10.3233/BEN-1997-102-303
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author A. D. Towell
D. Williams
S. G. Boyd
author_facet A. D. Towell
D. Williams
S. G. Boyd
author_sort A. D. Towell
collection DOAJ
description We investigated the effects of non-invasive high frequency (625Hz) stimulation over the spine on mechanical pain tolerance and subjective mood. Sixty healthy subjects were divided equally into three groups receiving either high intensity (250 V), low intensity (3–4 V) or sham electrical stimulation directly over the spinal cord for 30 minutes. Following high intensity stimulation, subjects felt significantly more elated, leisurely and less tense and, contrary to reports on patients with clinical pain, had lower mechanical pain tolerances. There were no correlations between changes in mood and changes in mechanical pain tolerances. These findings contrasted with the lack of any significant differences in mood or mechanical pain tolerances in a second study where 20 subjects received either high intensity or sham stimulation across the left shoulder joint. The results indicate that decreases in mechanical pain tolerance are independent of changes in mood following non-invasive high frequency, high intensity cutaneous stimulation but that both effects are dependent on that stimulation being applied over the spine.
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spelling doaj-art-fd2b9fc479c64c2f87c3f96ef0292ee42025-08-20T02:22:40ZengWileyBehavioural Neurology0953-41801875-85841997-01-01102-3616510.3233/BEN-1997-102-303High Frequency Non-Invasive Stimulation Over the Spine: Effects on Mood and Mechanical Pain Tolerance in Normal SubjectsA. D. Towell0D. Williams1S. G. Boyd2Department of Clinical Neurophysiology, Great Ormond Street Hospital For Children NHS Trust, Great Ormond Street, London, UKDepartment of Psychology, University of Westminster, London, UKDepartment of Clinical Neurophysiology, Great Ormond Street Hospital For Children NHS Trust, Great Ormond Street, London, UKWe investigated the effects of non-invasive high frequency (625Hz) stimulation over the spine on mechanical pain tolerance and subjective mood. Sixty healthy subjects were divided equally into three groups receiving either high intensity (250 V), low intensity (3–4 V) or sham electrical stimulation directly over the spinal cord for 30 minutes. Following high intensity stimulation, subjects felt significantly more elated, leisurely and less tense and, contrary to reports on patients with clinical pain, had lower mechanical pain tolerances. There were no correlations between changes in mood and changes in mechanical pain tolerances. These findings contrasted with the lack of any significant differences in mood or mechanical pain tolerances in a second study where 20 subjects received either high intensity or sham stimulation across the left shoulder joint. The results indicate that decreases in mechanical pain tolerance are independent of changes in mood following non-invasive high frequency, high intensity cutaneous stimulation but that both effects are dependent on that stimulation being applied over the spine.http://dx.doi.org/10.3233/BEN-1997-102-303
spellingShingle A. D. Towell
D. Williams
S. G. Boyd
High Frequency Non-Invasive Stimulation Over the Spine: Effects on Mood and Mechanical Pain Tolerance in Normal Subjects
Behavioural Neurology
title High Frequency Non-Invasive Stimulation Over the Spine: Effects on Mood and Mechanical Pain Tolerance in Normal Subjects
title_full High Frequency Non-Invasive Stimulation Over the Spine: Effects on Mood and Mechanical Pain Tolerance in Normal Subjects
title_fullStr High Frequency Non-Invasive Stimulation Over the Spine: Effects on Mood and Mechanical Pain Tolerance in Normal Subjects
title_full_unstemmed High Frequency Non-Invasive Stimulation Over the Spine: Effects on Mood and Mechanical Pain Tolerance in Normal Subjects
title_short High Frequency Non-Invasive Stimulation Over the Spine: Effects on Mood and Mechanical Pain Tolerance in Normal Subjects
title_sort high frequency non invasive stimulation over the spine effects on mood and mechanical pain tolerance in normal subjects
url http://dx.doi.org/10.3233/BEN-1997-102-303
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