Basal Ganglia Flashcards
function of 5 basal ganglia loops: recognition of social disapproval, self-regulatory control, selecting relevant knowledge from irrelevant, maintaining attention, stimulus-response learning
behavioral flexibility and control
function of 5 basal ganglia loops: movement selection and action
motor
which 2 structures make up the striatum?
caudate and putamen
function of 5 basal ganglia loops: goal-directed behavior; makes perceptual decisions, plans, and decides upon actions in context
executive
which nucleus of the basal ganglia receives input from premotor and motor cortices?
putamen
what is the basal ganglia motor pathway for postural muscles?
BG x pedunculopontine nucleus x reticulospinal tracts > LMNs > postural muscles
what is the basal ganglia motor pathway for voluntary muscle movement?
BG x motor thalamus > motor cortex > corticospinal tracts > LMNs > voluntary muscles
function of 5 basal ganglia loops: links limbic, cognitive, and motor systems; identifies value of stimuli; involved in reward-guided behaviors; monitors errors in predictions; concerned with seeking pleasure
limbic
what is the basal ganglia motor pathway for walking?
BG x midbrain locomotor region > reticulospinal tracts > stepping pattern generators > LMNs > walking
what is the structure that provides output for the BG motor circuit?
globus pallidus internus
function of 5 basal ganglia loops: decisions about eye movements and spatial attention; initiation of fast eye movements
oculomotor
which 2 structures adjust activity in descending UMN?
basal ganglia and cerebellum
what part of the limbic system links the limbic, cognitive, and motor systems?
ventral striatum
where do the basal ganglia and cerebellum adjust activity?
descending UMNs
which nucleus of the basal ganglia is involved in goal-directed behavior?
caudate
