Different contribution of joint and cutaneous inputs to early scalp somatosensory evoked potentials

Domenico Restuccia, Massimiliano Valeriani, Carmen Barba, Domenica Le Pera, Pietro Tonali, François Mauguière

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

To elucidate whether the frontal components of scalp somatosensory evoked potentials (SEPs) depend on the type of peripheral input, we compared scalp SEPs in response to electrical stimuli applied to: (i) the proximal phalanx of the thumb, involving both deep and cutaneous afferents; and (ii) the distal phalanx of the thumb, involving cutaneous afferents, but excluding joint inputs coming from the interphalangeal articulation. We applied the same dipolar model that we built to explain the scalp SEP distribution to median nerve stimulation in previous investigations. Cortical SEPs after proximal stimulation were generated by three dipolar sources, one of which was likely to account for the frontal scalp N30. When we analyzed SEPs for distal (purely cutaneous) stimulation, the frontal and central recordings showed a clear reduction in amplitude of the negative responses having a latency of about 30 ms. Moreover, when applying the dipole model derived from analysis of responses to proximal stimulation to SEPs to distal stimulation, the source corresponding to the N30 distribution showed no activity, suggesting a strong relationship between joint and tendinous inputs and the activity of the N30 generator.

Original languageEnglish
Pages (from-to)910-919
Number of pages10
JournalMuscle and Nerve
Volume22
Issue number7
DOIs
Publication statusPublished - 1999

Fingerprint

Somatosensory Evoked Potentials
Scalp
Joints
Skin
Thumb
Median Nerve

Keywords

  • Cutaneous afferent
  • Generator sources
  • Proprioception
  • Somatosensory evoked potentials

ASJC Scopus subject areas

  • Clinical Neurology
  • Neuroscience(all)

Cite this

Different contribution of joint and cutaneous inputs to early scalp somatosensory evoked potentials. / Restuccia, Domenico; Valeriani, Massimiliano; Barba, Carmen; Le Pera, Domenica; Tonali, Pietro; Mauguière, François.

In: Muscle and Nerve, Vol. 22, No. 7, 1999, p. 910-919.

Research output: Contribution to journalArticle

Restuccia, Domenico ; Valeriani, Massimiliano ; Barba, Carmen ; Le Pera, Domenica ; Tonali, Pietro ; Mauguière, François. / Different contribution of joint and cutaneous inputs to early scalp somatosensory evoked potentials. In: Muscle and Nerve. 1999 ; Vol. 22, No. 7. pp. 910-919.
@article{28454e2b355f4af3a16a0fddb3e2cdf4,
title = "Different contribution of joint and cutaneous inputs to early scalp somatosensory evoked potentials",
abstract = "To elucidate whether the frontal components of scalp somatosensory evoked potentials (SEPs) depend on the type of peripheral input, we compared scalp SEPs in response to electrical stimuli applied to: (i) the proximal phalanx of the thumb, involving both deep and cutaneous afferents; and (ii) the distal phalanx of the thumb, involving cutaneous afferents, but excluding joint inputs coming from the interphalangeal articulation. We applied the same dipolar model that we built to explain the scalp SEP distribution to median nerve stimulation in previous investigations. Cortical SEPs after proximal stimulation were generated by three dipolar sources, one of which was likely to account for the frontal scalp N30. When we analyzed SEPs for distal (purely cutaneous) stimulation, the frontal and central recordings showed a clear reduction in amplitude of the negative responses having a latency of about 30 ms. Moreover, when applying the dipole model derived from analysis of responses to proximal stimulation to SEPs to distal stimulation, the source corresponding to the N30 distribution showed no activity, suggesting a strong relationship between joint and tendinous inputs and the activity of the N30 generator.",
keywords = "Cutaneous afferent, Generator sources, Proprioception, Somatosensory evoked potentials",
author = "Domenico Restuccia and Massimiliano Valeriani and Carmen Barba and {Le Pera}, Domenica and Pietro Tonali and Fran{\cc}ois Maugui{\`e}re",
year = "1999",
doi = "10.1002/(SICI)1097-4598(199907)22:7<910::AID-MUS15>3.0.CO;2-V",
language = "English",
volume = "22",
pages = "910--919",
journal = "Muscle and Nerve",
issn = "0148-639X",
publisher = "John Wiley and Sons Inc.",
number = "7",

}

TY - JOUR

T1 - Different contribution of joint and cutaneous inputs to early scalp somatosensory evoked potentials

AU - Restuccia, Domenico

AU - Valeriani, Massimiliano

AU - Barba, Carmen

AU - Le Pera, Domenica

AU - Tonali, Pietro

AU - Mauguière, François

PY - 1999

Y1 - 1999

N2 - To elucidate whether the frontal components of scalp somatosensory evoked potentials (SEPs) depend on the type of peripheral input, we compared scalp SEPs in response to electrical stimuli applied to: (i) the proximal phalanx of the thumb, involving both deep and cutaneous afferents; and (ii) the distal phalanx of the thumb, involving cutaneous afferents, but excluding joint inputs coming from the interphalangeal articulation. We applied the same dipolar model that we built to explain the scalp SEP distribution to median nerve stimulation in previous investigations. Cortical SEPs after proximal stimulation were generated by three dipolar sources, one of which was likely to account for the frontal scalp N30. When we analyzed SEPs for distal (purely cutaneous) stimulation, the frontal and central recordings showed a clear reduction in amplitude of the negative responses having a latency of about 30 ms. Moreover, when applying the dipole model derived from analysis of responses to proximal stimulation to SEPs to distal stimulation, the source corresponding to the N30 distribution showed no activity, suggesting a strong relationship between joint and tendinous inputs and the activity of the N30 generator.

AB - To elucidate whether the frontal components of scalp somatosensory evoked potentials (SEPs) depend on the type of peripheral input, we compared scalp SEPs in response to electrical stimuli applied to: (i) the proximal phalanx of the thumb, involving both deep and cutaneous afferents; and (ii) the distal phalanx of the thumb, involving cutaneous afferents, but excluding joint inputs coming from the interphalangeal articulation. We applied the same dipolar model that we built to explain the scalp SEP distribution to median nerve stimulation in previous investigations. Cortical SEPs after proximal stimulation were generated by three dipolar sources, one of which was likely to account for the frontal scalp N30. When we analyzed SEPs for distal (purely cutaneous) stimulation, the frontal and central recordings showed a clear reduction in amplitude of the negative responses having a latency of about 30 ms. Moreover, when applying the dipole model derived from analysis of responses to proximal stimulation to SEPs to distal stimulation, the source corresponding to the N30 distribution showed no activity, suggesting a strong relationship between joint and tendinous inputs and the activity of the N30 generator.

KW - Cutaneous afferent

KW - Generator sources

KW - Proprioception

KW - Somatosensory evoked potentials

UR - http://www.scopus.com/inward/record.url?scp=0032802256&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032802256&partnerID=8YFLogxK

U2 - 10.1002/(SICI)1097-4598(199907)22:7<910::AID-MUS15>3.0.CO;2-V

DO - 10.1002/(SICI)1097-4598(199907)22:7<910::AID-MUS15>3.0.CO;2-V

M3 - Article

C2 - 10398210

AN - SCOPUS:0032802256

VL - 22

SP - 910

EP - 919

JO - Muscle and Nerve

JF - Muscle and Nerve

SN - 0148-639X

IS - 7

ER -