Abstract
We used positron emission tomography to study normal patterns of local cortical metabolic activation induced by somatosensory stimuli. Palpation and sorting of mah-jongg tiles by textured design increased local glucose metabolic rate (lCMRgl), by 18% on average, in contralateral somatosensory cortex. A graphesthesia task gave a similar result. In contrast, vigorous vibrotactile stimulation of fingers, face, or knee did not produce a consistent focus of activation. Our results indicate that lCMRgl activation is best achieved by somatosensory tasks requiring an active perceptual effort.
| Original language | English |
|---|---|
| Pages (from-to) | 1301-1308 |
| Number of pages | 8 |
| Journal | Neurology |
| Volume | 37 |
| Issue number | 8 |
| State | Published - Aug 1 1987 |
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ASJC Scopus subject areas
- Neuroscience(all)
Cite this
Human task-specific somatosensory activation. / Ginsberg, Myron; Yoshii, F.; Vibulsresth, S.; Chang, J. Y.; Duara, R.; Barker, W. W.; Boothe, T. E.
In: Neurology, Vol. 37, No. 8, 01.08.1987, p. 1301-1308.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Human task-specific somatosensory activation.
AU - Ginsberg, Myron
AU - Yoshii, F.
AU - Vibulsresth, S.
AU - Chang, J. Y.
AU - Duara, R.
AU - Barker, W. W.
AU - Boothe, T. E.
PY - 1987/8/1
Y1 - 1987/8/1
N2 - We used positron emission tomography to study normal patterns of local cortical metabolic activation induced by somatosensory stimuli. Palpation and sorting of mah-jongg tiles by textured design increased local glucose metabolic rate (lCMRgl), by 18% on average, in contralateral somatosensory cortex. A graphesthesia task gave a similar result. In contrast, vigorous vibrotactile stimulation of fingers, face, or knee did not produce a consistent focus of activation. Our results indicate that lCMRgl activation is best achieved by somatosensory tasks requiring an active perceptual effort.
AB - We used positron emission tomography to study normal patterns of local cortical metabolic activation induced by somatosensory stimuli. Palpation and sorting of mah-jongg tiles by textured design increased local glucose metabolic rate (lCMRgl), by 18% on average, in contralateral somatosensory cortex. A graphesthesia task gave a similar result. In contrast, vigorous vibrotactile stimulation of fingers, face, or knee did not produce a consistent focus of activation. Our results indicate that lCMRgl activation is best achieved by somatosensory tasks requiring an active perceptual effort.
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UR - http://www.scopus.com/inward/citedby.url?scp=0023394223&partnerID=8YFLogxK
M3 - Article
C2 - 3497363
AN - SCOPUS:0023394223
VL - 37
SP - 1301
EP - 1308
JO - Neurology
JF - Neurology
SN - 0028-3878
IS - 8
ER -