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Subcortical loops through the basal ganglia.

Abstract : Parallel, largely segregated, closed-loop projections are an important component of cortical-basal ganglia-cortical connectional architecture. Here, we present the hypothesis that such loops involving the neocortex are neither novel nor the first evolutionary example of closed-loop architecture involving the basal ganglia. Specifically, we propose that a phylogenetically older, closed-loop series of subcortical connections exists between the basal ganglia and brainstem sensorimotor structures, a good example of which is the midbrain superior colliculus. Insofar as this organization represents a general feature of brain architecture, cortical and subcortical inputs to the basal ganglia might act independently, co-operatively or competitively to influence the mechanisms of action selection.
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Contributor : Marc Savasta <>
Submitted on : Tuesday, August 25, 2009 - 3:22:49 PM
Last modification on : Wednesday, August 21, 2019 - 11:02:06 AM




John Mchaffie, Terrence Stanford, Barry Stein, Véronique Coizet, Peter Redgrave. Subcortical loops through the basal ganglia.. Trends in Neurosciences, Elsevier, 2005, 28 (8), pp.401-7. ⟨10.1016/j.tins.2005.06.006⟩. ⟨inserm-00411012⟩



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