Effects of ventrolateral-ventromedial thalamic lesions on motor coordination and spatial orientation in rats. 2003

M Jeljeli, and C Strazielle, and J Caston, and R Lalonde
Faculté des Sciences (UPRES PSY CO-EA 1780), Université de Rouen, 76821 Cedex, Mont-Saint-Aignan, France.

The ventrolateral-ventromedial (VL-VM) nuclei are classified as a motor area of the thalamus on the basis of predominant input from the cerebellum and the basal ganglia and output to the motor cortex. The sensitivity to electrolytic lesions of the VL-VM thalamic nuclei in rats was evaluated for tests requiring balance and equilibrium. VL-VM lesions impaired acquisition of the rotorod test but had no effect on stationary beam and hole-board tests. A selective impairment was also observed in the Morris water maze, as VL-VM thalamic lesions slowed down acquisition of the hidden platform but not the visible platform condition. These results support the hypothesis that thalamic motor nuclei participate in the acquisition of sensorimotor and spatial learning.

UI MeSH Term Description Entries
D009434 Neural Pathways Neural tracts connecting one part of the nervous system with another. Neural Interconnections,Interconnection, Neural,Interconnections, Neural,Neural Interconnection,Neural Pathway,Pathway, Neural,Pathways, Neural
D009949 Orientation Awareness of oneself in relation to time, place and person. Cognitive Orientation,Mental Orientation,Psychological Orientation,Cognitive Orientations,Mental Orientations,Orientation, Cognitive,Orientation, Mental,Orientation, Psychological,Orientations,Orientations, Cognitive,Orientations, Mental,Orientations, Psychological,Psychological Orientations
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
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
D013037 Spatial Behavior Reactions of an individual or groups of individuals with relation to the immediate surrounding area including the animate or inanimate objects within that area. Behavior, Spatial,Behaviors, Spatial,Spatial Behaviors
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D018782 Maze Learning Learning the correct route through a maze to obtain reinforcement. It is used for human or animal populations. (Thesaurus of Psychological Index Terms, 6th ed) Maze Test,Learning, Maze,Maze Learnings,Maze Tests
D020651 Ventral Thalamic Nuclei A large group of nuclei lying between the internal medullary lamina and the INTERNAL CAPSULE. It includes the ventral anterior, ventral lateral, and ventral posterior nuclei. Ventral Anterior Thalamic Nucleus,Ventral Lateral Thalamic Nucleus,Ventral Nuclear Group,Ventral Posterior Inferior Thalamic Nucleus,Ventral Posterior Thalamic Nucleus,Ventral Posterolateral Thalamic Nucleus,Ventral Posteromedial Thalamic Nucleus,Arcuate Nucleus-3,Nucleus Ventralis Intermedius,Nucleus Ventralis Lateralis,Nucleus Ventralis Posterior,Nucleus Ventralis Posterolateralis,Nucleus Ventralis Posteromedialis,Nucleus Ventrolateralis Thalami,Ventral Anterior Nucleus,Ventral Lateral Nucleus,Ventral Lateral Thalamic Nuclei,Ventral Nuclear Mass,Ventral Nuclei of Thalamus,Ventral Posterior Inferior Nucleus,Ventral Posterior Medial Nucleus,Ventral Posterior Nucleus,Ventral Posteroinferior Nucleus,Ventral Posterolateral Nucleus,Ventral Posteromedial Nucleus,Ventrobasal Complex,Ventrolateral Thalamic Nucleus,Ventrolateral Thalamus,Arcuate Nucleus 3,Complex, Ventrobasal,Complices, Ventrobasal,Group, Ventral Nuclear,Intermedius, Nucleus Ventralis,Laterali, Nucleus Ventralis,Lateralis, Nucleus Ventralis,Mass, Ventral Nuclear,Masses, Ventral Nuclear,Nuclear Group, Ventral,Nuclear Mass, Ventral,Nuclear Masses, Ventral,Nuclei, Ventral Thalamic,Nucleus Ventralis Laterali,Nucleus Ventralis Posteriors,Nucleus Ventralis Posterolaterali,Nucleus Ventralis Posteromediali,Nucleus Ventrolateralis Thalamus,Nucleus, Ventral Anterior,Nucleus, Ventral Lateral,Nucleus, Ventral Posterior,Nucleus, Ventral Posteroinferior,Nucleus, Ventral Posterolateral,Nucleus, Ventral Posteromedial,Nucleus, Ventral Thalamic,Nucleus, Ventrolateral Thalamic,Posterior Nucleus, Ventral,Posterior, Nucleus Ventralis,Posteriors, Nucleus Ventralis,Posteroinferior Nucleus, Ventral,Posterolateral Nucleus, Ventral,Posterolaterali, Nucleus Ventralis,Posterolateralis, Nucleus Ventralis,Posteromedial Nucleus, Ventral,Posteromediali, Nucleus Ventralis,Posteromedialis, Nucleus Ventralis,Thalami, Nucleus Ventrolateralis,Thalamic Nuclei, Ventral,Thalamic Nucleus, Ventral,Thalamic Nucleus, Ventrolateral,Thalamus, Nucleus Ventrolateralis,Thalamus, Ventrolateral,Ventral Nuclear Groups,Ventral Nuclear Masses,Ventral Thalamic Nucleus,Ventralis Intermedius, Nucleus,Ventralis Laterali, Nucleus,Ventralis Lateralis, Nucleus,Ventralis Posterior, Nucleus,Ventralis Posteriors, Nucleus,Ventralis Posterolaterali, Nucleus,Ventralis Posterolateralis, Nucleus,Ventralis Posteromediali, Nucleus,Ventralis Posteromedialis, Nucleus,Ventrobasal Complices,Ventrolateralis Thalami, Nucleus,Ventrolateralis Thalamus, Nucleus

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