NROC69H3 Lecture Notes - Lecture 6: Striatum, Nucleus Accumbens, Pars Reticulata
Document Summary
Anatomy & function of bg: bg composed of many nuclei, striatum: input structure of bg, receive input from thalamus, cortex, daergic input. Pars compacta (snc)- region where da ergic inputs originate. Pars reticulata (snr: high cross species homology - all have defined striatum and bg, function of bg, movement control. External (gpe: subthalamic nucleus (stn, substantia nigra (sn) Gating functions -> motor, selecting and inhibiting some inputs over others: action selection, procedural learning - skills ex. Esp dorsal part of striatum: executive function (e. g. working memory, behavioral flexibility, sensorimotor integration, limbic-motor integration (associative influences, reward learning o. Important in integrating info to influence bhv output. Select most important plan based on info received: multifaceted functions. Select & sequence internally generated motor programs for posture & Select a goal / actions to achieve, & movement to achieve actions: on basis of limbic info travelling to striatum. Associating cues with actions & outcomes to optimize responses to.
