Recovery functions of somatosensory vertex potentials in man

interaction of evoked responses from right and left fingers

Yasutomo Okajima, Naoichi Chino, Eiichi Saitoh, Akio Kimura

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Somatosensory vertex potentials (SVPs) were examined in 12 healthy subjects in response to painful electrical stimulation of the finger. SVPs consisted of N1, P1, and N2. The average latencies of the 3 peaks were 150, 225, and 350 msec, respectively. The latency and amplitude of each potential were reproducible for each subject. Recovery functions of the SVPs were analyzed in 10 subjects. A pair of stimuli were delivered to the right or left finger with interstimulus intervals (ISIs) of 50, 100, 150, 200, 350, 500 and 650 msec. SVPs partially recovered with the shortest ISI (50 msec). Full recovery could not be obtained even with the longest ISI (650 msec). Differences in recoveries within 650 msec of ISI were not observed between right and left stimulations. To examine the interaction between SVPs evoked by right and left finger stimulation, recovery functions from prior contralateral finger stimulation were analyzed with the same ISIs. SVP recoveries for right after left or left after right patterns of stimulus delivery were nearly the same as those for ipsilateral ones. It is suggested that SVPs are generated at nearly the same site in the sensory pathway regardless of the side stimulated.

Original languageEnglish
Pages (from-to)531-535
Number of pages5
JournalElectroencephalography and Clinical Neurophysiology/ Evoked Potentials
Volume80
Issue number6
DOIs
Publication statusPublished - 01-01-1991
Externally publishedYes

Fingerprint

Recovery of Function
Fingers
Somatosensory Evoked Potentials
Electric Stimulation
Healthy Volunteers

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Clinical Neurology

Cite this

@article{080508df38d04ef8bb17a6b1588aa089,
title = "Recovery functions of somatosensory vertex potentials in man: interaction of evoked responses from right and left fingers",
abstract = "Somatosensory vertex potentials (SVPs) were examined in 12 healthy subjects in response to painful electrical stimulation of the finger. SVPs consisted of N1, P1, and N2. The average latencies of the 3 peaks were 150, 225, and 350 msec, respectively. The latency and amplitude of each potential were reproducible for each subject. Recovery functions of the SVPs were analyzed in 10 subjects. A pair of stimuli were delivered to the right or left finger with interstimulus intervals (ISIs) of 50, 100, 150, 200, 350, 500 and 650 msec. SVPs partially recovered with the shortest ISI (50 msec). Full recovery could not be obtained even with the longest ISI (650 msec). Differences in recoveries within 650 msec of ISI were not observed between right and left stimulations. To examine the interaction between SVPs evoked by right and left finger stimulation, recovery functions from prior contralateral finger stimulation were analyzed with the same ISIs. SVP recoveries for right after left or left after right patterns of stimulus delivery were nearly the same as those for ipsilateral ones. It is suggested that SVPs are generated at nearly the same site in the sensory pathway regardless of the side stimulated.",
author = "Yasutomo Okajima and Naoichi Chino and Eiichi Saitoh and Akio Kimura",
year = "1991",
month = "1",
day = "1",
doi = "10.1016/0168-5597(91)90135-K",
language = "English",
volume = "80",
pages = "531--535",
journal = "Electroencephalography and Clinical Neurophysiology - Evoked Potentials",
issn = "0168-5597",
publisher = "Elsevier BV",
number = "6",

}

Recovery functions of somatosensory vertex potentials in man : interaction of evoked responses from right and left fingers. / Okajima, Yasutomo; Chino, Naoichi; Saitoh, Eiichi; Kimura, Akio.

In: Electroencephalography and Clinical Neurophysiology/ Evoked Potentials, Vol. 80, No. 6, 01.01.1991, p. 531-535.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Recovery functions of somatosensory vertex potentials in man

T2 - interaction of evoked responses from right and left fingers

AU - Okajima, Yasutomo

AU - Chino, Naoichi

AU - Saitoh, Eiichi

AU - Kimura, Akio

PY - 1991/1/1

Y1 - 1991/1/1

N2 - Somatosensory vertex potentials (SVPs) were examined in 12 healthy subjects in response to painful electrical stimulation of the finger. SVPs consisted of N1, P1, and N2. The average latencies of the 3 peaks were 150, 225, and 350 msec, respectively. The latency and amplitude of each potential were reproducible for each subject. Recovery functions of the SVPs were analyzed in 10 subjects. A pair of stimuli were delivered to the right or left finger with interstimulus intervals (ISIs) of 50, 100, 150, 200, 350, 500 and 650 msec. SVPs partially recovered with the shortest ISI (50 msec). Full recovery could not be obtained even with the longest ISI (650 msec). Differences in recoveries within 650 msec of ISI were not observed between right and left stimulations. To examine the interaction between SVPs evoked by right and left finger stimulation, recovery functions from prior contralateral finger stimulation were analyzed with the same ISIs. SVP recoveries for right after left or left after right patterns of stimulus delivery were nearly the same as those for ipsilateral ones. It is suggested that SVPs are generated at nearly the same site in the sensory pathway regardless of the side stimulated.

AB - Somatosensory vertex potentials (SVPs) were examined in 12 healthy subjects in response to painful electrical stimulation of the finger. SVPs consisted of N1, P1, and N2. The average latencies of the 3 peaks were 150, 225, and 350 msec, respectively. The latency and amplitude of each potential were reproducible for each subject. Recovery functions of the SVPs were analyzed in 10 subjects. A pair of stimuli were delivered to the right or left finger with interstimulus intervals (ISIs) of 50, 100, 150, 200, 350, 500 and 650 msec. SVPs partially recovered with the shortest ISI (50 msec). Full recovery could not be obtained even with the longest ISI (650 msec). Differences in recoveries within 650 msec of ISI were not observed between right and left stimulations. To examine the interaction between SVPs evoked by right and left finger stimulation, recovery functions from prior contralateral finger stimulation were analyzed with the same ISIs. SVP recoveries for right after left or left after right patterns of stimulus delivery were nearly the same as those for ipsilateral ones. It is suggested that SVPs are generated at nearly the same site in the sensory pathway regardless of the side stimulated.

UR - http://www.scopus.com/inward/record.url?scp=0025990854&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025990854&partnerID=8YFLogxK

U2 - 10.1016/0168-5597(91)90135-K

DO - 10.1016/0168-5597(91)90135-K

M3 - Article

VL - 80

SP - 531

EP - 535

JO - Electroencephalography and Clinical Neurophysiology - Evoked Potentials

JF - Electroencephalography and Clinical Neurophysiology - Evoked Potentials

SN - 0168-5597

IS - 6

ER -