Proprioceptive evoked potentials in man: cerebral responses to changing weight loads on the hand

S Arnfred; A C Chen; Derek N Eder; B Glenthoj; R Hemmingsen

Proprioceptive evoked potentials in man: cerebral responses to changing weight loads on the hand

S Arnfred, A C Chen, Derek N Eder, B Glenthoj, R Hemmingsen

10 Citationer (Scopus)

Abstract

We studied cerebral evoked potentials on the scalp to the stimulation of the right hand from a change in weight of 400-480 g in ten subjects. Rise-time was 20g/10 ms, Inter Stimulus Interval 2s and stimulus duration was 100 ms. The cerebral activations were a double positive contralateral C3'/P70, P190, and a single negative frontal Fz/N70 component. We conclude that a brisk change of a hand held load elicits a significant evoked potential (EP) unlike the electrical somato-sensory EP (SEP). The stimulus is perceived as applied force. For this reason we call it a proprioceptive EP (PEP). Further studies of the PEP are needed to assess the influence of load manipulations and of muscle contraction and to explore the effect of attentional manipulation.

Originalsprog	Engelsk
Tidsskrift	Neuroscience Letters
Vol/bind	288
Udgave nummer	2
Sider (fra-til)	111-4
Antal sider	4
ISSN	0304-3940
Status	Udgivet - 14 jul. 2000

Citationsformater

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title = "Proprioceptive evoked potentials in man: cerebral responses to changing weight loads on the hand",

abstract = "We studied cerebral evoked potentials on the scalp to the stimulation of the right hand from a change in weight of 400-480 g in ten subjects. Rise-time was 20g/10 ms, Inter Stimulus Interval 2s and stimulus duration was 100 ms. The cerebral activations were a double positive contralateral C3'/P70, P190, and a single negative frontal Fz/N70 component. We conclude that a brisk change of a hand held load elicits a significant evoked potential (EP) unlike the electrical somato-sensory EP (SEP). The stimulus is perceived as applied force. For this reason we call it a proprioceptive EP (PEP). Further studies of the PEP are needed to assess the influence of load manipulations and of muscle contraction and to explore the effect of attentional manipulation.",

keywords = "Adult, Brain/physiology, Efferent Pathways/physiology, Electromyography, Evoked Potentials, Somatosensory/physiology, Hand/physiology, Humans, Male, Motor Cortex/physiology, Proprioception/physiology, Reaction Time/physiology, Weight-Bearing/physiology",

author = "S Arnfred and Chen, {A C} and Eder, {Derek N} and B Glenthoj and R Hemmingsen",

year = "2000",

month = jul,

day = "14",

language = "English",

volume = "288",

pages = "111--4",

journal = "Neuroscience Letters",

issn = "0304-3940",

publisher = "Elsevier Ireland Ltd",

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TY - JOUR

T1 - Proprioceptive evoked potentials in man

T2 - cerebral responses to changing weight loads on the hand

AU - Arnfred, S

AU - Chen, A C

AU - Eder, Derek N

AU - Glenthoj, B

AU - Hemmingsen, R

PY - 2000/7/14

Y1 - 2000/7/14

N2 - We studied cerebral evoked potentials on the scalp to the stimulation of the right hand from a change in weight of 400-480 g in ten subjects. Rise-time was 20g/10 ms, Inter Stimulus Interval 2s and stimulus duration was 100 ms. The cerebral activations were a double positive contralateral C3'/P70, P190, and a single negative frontal Fz/N70 component. We conclude that a brisk change of a hand held load elicits a significant evoked potential (EP) unlike the electrical somato-sensory EP (SEP). The stimulus is perceived as applied force. For this reason we call it a proprioceptive EP (PEP). Further studies of the PEP are needed to assess the influence of load manipulations and of muscle contraction and to explore the effect of attentional manipulation.

AB - We studied cerebral evoked potentials on the scalp to the stimulation of the right hand from a change in weight of 400-480 g in ten subjects. Rise-time was 20g/10 ms, Inter Stimulus Interval 2s and stimulus duration was 100 ms. The cerebral activations were a double positive contralateral C3'/P70, P190, and a single negative frontal Fz/N70 component. We conclude that a brisk change of a hand held load elicits a significant evoked potential (EP) unlike the electrical somato-sensory EP (SEP). The stimulus is perceived as applied force. For this reason we call it a proprioceptive EP (PEP). Further studies of the PEP are needed to assess the influence of load manipulations and of muscle contraction and to explore the effect of attentional manipulation.

KW - Adult

KW - Brain/physiology

KW - Efferent Pathways/physiology

KW - Electromyography

KW - Evoked Potentials, Somatosensory/physiology

KW - Hand/physiology

KW - Humans

KW - Male

KW - Motor Cortex/physiology

KW - Proprioception/physiology

KW - Reaction Time/physiology

KW - Weight-Bearing/physiology

M3 - Journal article

C2 - 10876073

SN - 0304-3940

VL - 288

SP - 111

EP - 114

JO - Neuroscience Letters

JF - Neuroscience Letters

IS - 2

ER -

Proprioceptive evoked potentials in man: cerebral responses to changing weight loads on the hand

Abstract

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