A magnetoencephalography study of cortical plasticity

Joshua I. Breier, Panagiotis G. Simos, James Wheless, George Zouridakis, L. James Willmore, Jules E.C. Constantinou, Andrew Papanicolaou

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

An 18-year-old left-handed female with a large left hemisphere arteriovenous malformation in the frontoparietal region underwent brain mapping of the somatosensory cortex using a whole-head neuromagnetometer. Results indicated the presence of two complete somatosensory maps in the unaffected, right hemisphere. A map of contralateral body surface areas was found in the expected location in the anterior parietal lobe. A second map of ipsilateral body surface areas was found inferior to the first, extending from the inferior parietal lobe into peri-insular cortex, including SII. A less topographically organized map of the right side of the body was also found in the left hemisphere. Evoked magnetic flux components associated with right-sided stimulation occurred earlier, were more numerous, and were stronger in the ipsilateral as compared to the contralateral hemisphere, suggesting that the ipsilateral map is functional. These findings are discussed in relationship to other functional imaging studies of reorganization of the functional cortex in response to early trauma or congenital anomaly.

Original languageEnglish (US)
Pages (from-to)277-284
Number of pages8
JournalNeurocase
Volume5
Issue number4
DOIs
StatePublished - Sep 1 1999

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Magnetoencephalography
Parietal Lobe
Body Surface Area
Brain Mapping
Somatosensory Cortex
Arteriovenous Malformations
Cerebral Cortex
Head
Wounds and Injuries
Plasticity
Cortex
Left Hemisphere

All Science Journal Classification (ASJC) codes

  • Arts and Humanities (miscellaneous)
  • Clinical Neurology

Cite this

Breier, J. I., Simos, P. G., Wheless, J., Zouridakis, G., Willmore, L. J., Constantinou, J. E. C., & Papanicolaou, A. (1999). A magnetoencephalography study of cortical plasticity. Neurocase, 5(4), 277-284. https://doi.org/10.1093/neucas/5.4.277

A magnetoencephalography study of cortical plasticity. / Breier, Joshua I.; Simos, Panagiotis G.; Wheless, James; Zouridakis, George; Willmore, L. James; Constantinou, Jules E.C.; Papanicolaou, Andrew.

In: Neurocase, Vol. 5, No. 4, 01.09.1999, p. 277-284.

Research output: Contribution to journalArticle

Breier, JI, Simos, PG, Wheless, J, Zouridakis, G, Willmore, LJ, Constantinou, JEC & Papanicolaou, A 1999, 'A magnetoencephalography study of cortical plasticity', Neurocase, vol. 5, no. 4, pp. 277-284. https://doi.org/10.1093/neucas/5.4.277
Breier JI, Simos PG, Wheless J, Zouridakis G, Willmore LJ, Constantinou JEC et al. A magnetoencephalography study of cortical plasticity. Neurocase. 1999 Sep 1;5(4):277-284. https://doi.org/10.1093/neucas/5.4.277
Breier, Joshua I. ; Simos, Panagiotis G. ; Wheless, James ; Zouridakis, George ; Willmore, L. James ; Constantinou, Jules E.C. ; Papanicolaou, Andrew. / A magnetoencephalography study of cortical plasticity. In: Neurocase. 1999 ; Vol. 5, No. 4. pp. 277-284.
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