Encyclopedia of Clinical Neuropsychology

2011 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Supplementary Motor Area (SMA)

  • Beth Kuczynski
  • Stephanie A. Kolakowsky-Hayner
Reference work entry
DOI: https://doi.org/10.1007/978-0-387-79948-3_368



The supplementary motor area (SMA) is situated medially and is in front of the primary motor cortex and medial to the premotor cortex. The SMA is also known as Brodmann area 6. The SMA can be divided into two areas, pre-SMA (rostral) and SMA proper (caudal). The SMA proper is involved in planning of learned complex movements (thought to be internally driven and not driven by visual cues) and in coordinating movements involving both hands. The pre-SMA is involved in the learning of new motor sequences.

Cross References

References and Readings

  1. Bannur, U., & Rajshekhar, V. (2000). Post operative supplementary motor area syndrome: Clinical features and outcome. British Journal of Neurosurgery, 14(3), 204–210.PubMedGoogle Scholar
  2. Engel, A., Burke, M., Fiehler, K., Bien, S., & Rösler, F. (2008). Motor learning affects visual movement perception. European Journal of Neuroscience, 27(9), 2294–2302.PubMedGoogle Scholar
  3. Kermadi, I., Liu, Y., Tempini, A., Calciati, E., & Rouiller, E. (1998). Neuronal activity in the primate supplementary motor area and the primary motor cortex in relation to spatio-temporal bimanual coordination. Somatosensory and Motor Research, 15(4), 287–308.PubMedGoogle Scholar
  4. Yamane, F., Muragaki, Y., Maruyama, T., Okada, Y., Iseki, H., Ikeda, A., et al. (2004). Preoperative mapping for patients with supplementary motor area epilepsy: Multimodality brain mapping. Psychiatry and Clinical Neurosciences, 58(3), S16–S21.PubMedGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Beth Kuczynski
    • 1
  • Stephanie A. Kolakowsky-Hayner
    • 2
  1. 1.Imaging of Dementia & Aging (IDeA) Laboratory, Department of Neurology & Center for NeuroscienceUniversity of CaliforniaDavisUSA
  2. 2.Director, Rehabilitation ResearchSanta Clara Valley Medical Center Rehabilitation Research CenterSan JoseUSA