Proprioceptive evoked potentials in man: cerebral responses to changing weight loads on the hand
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Proprioceptive evoked potentials in man : cerebral responses to changing weight loads on the hand. / Arnfred, S; Chen, A C; Eder, Derek N; Glenthoj, B; Hemmingsen, R.
In: Neuroscience Letters, Vol. 288, No. 2, 14.07.2000, p. 111-4.Research output: Contribution to journal › Journal article › Research › peer-review
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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
VL - 288
SP - 111
EP - 114
JO - Neuroscience letters. Supplement
JF - Neuroscience letters. Supplement
SN - 0167-6253
IS - 2
ER -
ID: 193667392