Performance of visually triggered wrist movements task in monkey: an application of information theory to evaluate deficits following unilateral substantia nigra pars reticulata lesion. 1998

F G Lestienne, and F Thullier
Laboratoire de Biologie et de Physiologie du Comportement, URA-CNRS no 1293, Université Henri Poincaré-Nancy I, Vandoeuvre-les-Nancy, France. lestienn@scbiol.u-nancy.fr

On the basis of an information theory approach, visual-motor efficiency (VME) was analyzed during pointing movement tasks in rhesus monkeys. This application was used to evaluate deficits in the ability to perform pointing movements as well as to chart the progress of the monkey during the chronic stage recovery period following unilateral lesion of the medial part of the substantia nigra pars reticulata. This unilateral lesion produced slight but significant chronic contralateral head roll tilt associated with body turning and induced profound modification of the VME at the beginning of the chronic stage of the symptomatology. Recovery developed in the following weeks, leading to a 3-fold increase in VME. However, at the end of the test (4 weeks postoperative), performance remained sub-normal: a decrease of 20-30% when compared to the control.

UI MeSH Term Description Entries
D007257 Information Theory An interdisciplinary study dealing with the transmission of messages or signals, or the communication of information. Information theory does not directly deal with meaning or content, but with physical representations that have meaning or content. It overlaps considerably with communication theory and CYBERNETICS. Information Theories,Theories, Information,Theory, Information
D008253 Macaca mulatta A species of the genus MACACA inhabiting India, China, and other parts of Asia. The species is used extensively in biomedical research and adapts very well to living with humans. Chinese Rhesus Macaques,Macaca mulatta lasiota,Monkey, Rhesus,Rhesus Monkey,Rhesus Macaque,Chinese Rhesus Macaque,Macaca mulatta lasiotas,Macaque, Rhesus,Rhesus Macaque, Chinese,Rhesus Macaques,Rhesus Macaques, Chinese,Rhesus Monkeys
D009068 Movement The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior. Movements
D010775 Photic Stimulation Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity. Stimulation, Photic,Visual Stimulation,Photic Stimulations,Stimulation, Visual,Stimulations, Photic,Stimulations, Visual,Visual Stimulations
D011597 Psychomotor Performance The coordination of a sensory or ideational (cognitive) process and a motor activity. Perceptual Motor Performance,Sensory Motor Performance,Visual Motor Coordination,Coordination, Visual Motor,Coordinations, Visual Motor,Motor Coordination, Visual,Motor Coordinations, Visual,Motor Performance, Perceptual,Motor Performance, Sensory,Motor Performances, Perceptual,Motor Performances, Sensory,Perceptual Motor Performances,Performance, Perceptual Motor,Performance, Psychomotor,Performance, Sensory Motor,Performances, Perceptual Motor,Performances, Psychomotor,Performances, Sensory Motor,Psychomotor Performances,Sensory Motor Performances,Visual Motor Coordinations
D004572 Electrolysis Destruction by passage of a galvanic electric current, as in disintegration of a chemical compound in solution. Electrolyses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013378 Substantia Nigra The black substance in the ventral midbrain or the nucleus of cells containing the black substance. These cells produce DOPAMINE, an important neurotransmitter in regulation of the sensorimotor system and mood. The dark colored MELANIN is a by-product of dopamine synthesis. Nigra, Substantia,Nigras, Substantia,Substantia Nigras
D014953 Wrist The region of the upper limb between the metacarpus and the FOREARM. Wrists

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