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News Physiol Sci 17: 51-55, 2002;
1548-9213/02 $5.00
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News in Physiological Sciences, Vol. 17, No. 2, 51-55, April 2002
© 2002 Int. Union Physiol. Sci./Am. Physiol. Soc.

The Basal Ganglia and Disorders of Movement: Pathophysiological Mechanisms

José A. Obeso1, María C. Rodríguez-Oroz1, Manuel Rodríguez4, Javier Arbizu2 and José M. Giménez-Amaya3

1 Departments of Neurology,
2 Nuclear Medicine, and
3 Anatomy, Clinica Universitaria and Medical School, University of Navarra, Pamplona 31008; and
4 Department of Physiology, Medical School, University of La Laguna, Tenerife 35042, Spain
The basal ganglia are part of a neuronal network organized in parallel circuits. The "motor circuit" is most relevant to the pathophysiology of movement. Abnormal increment or reduction in the inhibitory output activity of basal ganglia give rise, respectively, to poverty and slowness of movement (i.e., Parkinson's disease) or dyskinesias.




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