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Focal Increase of Cerebral Blood Flow During Stereognostic Testing in Man
Abstract
An attempt was made to study the regional cerebral blood flow (rCBF) pattern during stereognostic discrimination in man. The rCBF was measured in 18 subjects who had no major neurological defects. The clearance from the hemisphere of xenon 133 injected (133Xe) into the carotid artery was measured with a 254-channel dynamic gamma camera. During stereognostic discrimination with hand, mouth, or foot, the rCBF increased focally in the corresponding contralateral sensory-motor region and increased focally in the premotor part of the frontal lobe. The increase in the sensory region was attributed to the work of neurons extracting spatial features from the received input, while the increase in the motor region was ascribed to the formulation of motor strategies and motor commands. The physiological significance of the increase in the frontal region was unclear, tentatively, it was suggested to reflect the intention, selective attention, and decision of the subject.
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Citations
Cited by
Supplementary motor area and other cortical areas in organization of voluntary movements in man
Roland, P. E., Larsen, B., Lassen, N. A., & Skinhoj, E. (1980) · Journal of Neurophysiology · doi:10.1152/jn.1980.43.1.118 · Cited by 1,518
Self-citationSeitz, R. J., & Roland, P. E. (1992) · European Journal of Neuroscience · doi:10.1111/j.1460-9568.1992.tb00862.x · Cited by 321
Self-citationChanges in regional cerebral blood flow during the course of classic migraine attacks
Lauritzen, M., Olsen, T. S., Lassen, N. A., & Paulson, O. B. (1983) · Annals of Neurology · doi:10.1002/ana.410130609 · Cited by 310
Brain atlases - a new research tool
Roland, P. E., & Zilles, K. (1994) · Trends in Neurosciences · doi:10.1016/0166-2236(94)90131-7 · Cited by 296
Self-citationMapping the functional neuroanatomy of the intact human brain with brain work imaging
Haxby, J. V., Grady, C. L., Ungerleider, L. G., & Horwitz, B. (1991) · Neuropsychologia · doi:10.1016/0028-3932(91)90009-w · Cited by 104
Metadata
- Authors
- Roland, P. E., & Larsen, B.
- Venue
- Archives of Neurology
- Publisher
- American Medical Association (AMA)
- Published
- 1976-08-01
- Volume
- 33
- Issue
- 8
- Pages
- 551-558
- ISSN
- 0003-9942 (ISSN-L)
- OpenAlex
- W2042335527
- Cited by
- 194
- References
- 0
- FWCI
- 3.90
- Type
- journal article
- Language
- en
- Open access
- closed
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- Roland, P. E., & Larsen, B. (1976). Focal Increase of Cerebral Blood Flow During Stereognostic Testing in Man. Archives of Neurology. https://doi.org/10.1001/archneur.1976.00500080029005
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