Fixed Gaze and Eye-Head Coordination in Basal Ganglia Diseases (Parkinson's Disease, Huntington's Chorea, and Pallidum Necrosis)
Fixed Gaze and Eye-Head Coordination in Basal Ganglia Diseases (Parkinson's Disease, Huntington's Chorea, and Pallidum Necrosis)
The role of the basal ganglia in eye-head coordination has been studied using neurophysiologic and mathematical tools. The authors tried to answer the questions: (1) How do normal subjects organize and stabilize a new eye-head coordination situation? (2) What changes occur in patients with basal ganglia disorders? (3) Do eye-head coordination disorders and posturokinetic coordination share common characteristics? In the experimental paradigm, the subjects maintained the gaze on a central target during active and passive isolated head rotations. It is suggested this paradigm is used in studying eye-head motor coordination in central nervous system disorders.
Keywords: basal ganglia, posturokinetic coordination, eye-head coordination, mathematical tools, experimental paradigm
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