Neurophysiology and cognitive functions of the striatum.

摘要: The striatum receives inputs from different areas of the cerebral cortex, including association cortical far on in hierarchy information processing as well sensori-motor and has connections via globus pallidus substantia nigra to thalamus thence premotor prefrontal areas. Recordings activity neurons parts primates show that they have following properties: 1) much putamen, which related movements; 2) caudate nucleus, for example environmental stimuli signal preparation or initiation behavioral responses; 3) tail strongly inferior temporal visual respond when a patterned stimulus changes; 4) some posterior ventral cortex short term memory task, delayed match sample. responded delay period, differentially non-match stimuli. These did not an auditory sample so their was movement per se, but instead more closely relevant task; 5) (including nucleus accumbens), limbic structures such amygdala hippocampus, associated with reinforcement novel It is concluded there considerable segregation function within striatum. suggested opportunity originate interact, first stage convergence striatum, by further dendrites single nigra; both these basal ganglia may learn associations between signals receive. result this learning provide way become linked during motor particular sequences movements, thus be involved execution programs.