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The concept of organization of the basal ganglia has changed markedly over the last 10 years. These developments have led to the introduction of a schematic model of the functional circuitry of the basal ganglia that accounts for normal and abnormal basal ganglia functions. The recent introduction of powerful techniques for the analysis of neuronal networks(More)
Recent studies indicate that extrinsic inputs from sensorimotor regions of the cerebral cortex and the centromedian intralaminar thalamic nucleus terminate preferentially upon specific subpopulations of striatal output neurons in monkeys. The objective of the present study was to verify whether this specificity of innervation also characterizes the synaptic(More)
It is well established that the centromedian nucleus (CM) is the major source of thalamic afferents to the sensorimotor territory of the striatum in monkeys. However, the projection sites of striatal neurons contacted by thalamic afferents still remain to be determined. We therefore carried out an anatomical study aimed at elucidating the hodology of(More)
The first objective of the present study was to verify whether projections from regions of the internal pallidum (GPi) that receive inputs from different functional areas of the striatum remain segregated at the level of the pedunculopontine nucleus (PPN) in squirrel monkeys. Second, we analyzed the ultrastructural features and synaptic organization of(More)
The objectives of this study were, on one hand, to better understand how the segregated functional pathways from the cerebral cortex through the striatopallidal complex emerged in the projections to the thalamus and, on the other hand, to compare the ultrastructure and synaptic organization of the pallidal efferents to the ventrolateral (VL) and(More)
As a result of the frequent performance of lesioning and electrical stimulation procedures targeting the globus pallidus internus (GPi) to treat medically intractable hypokinetic and hyperkinetic movement disorders, the course of the pallidothalamic projections originating, in particular, from the motor territory of GPi has important clinical relevancy. To(More)
Le PRESAO est un programme de recherche appliquée, de diffusion et discussion des résultats de recherche, et de renforcement des capacités dans le domaine des politiques de sécurité alimentaire en Afrique de l'Ouest. Il est mis en oeuvre conjointement par l'Université de l'État du Michigan (MSU), l'Assemblée Permanente des Chambres d'Agriculture du Mali(More)
1. L'importance des produits horticoles aux populations vulnérables D'une part, les populations vulnérables au Mali cherchent des opportunités économiques plus rémunératrices. D'autre part, les marchés horticoles présentent de très grandes opportunités de croissance ainsi que de multiples produits de très haute valeur. En quelle mesure ces marchés(More)
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