102 Basal Nuclei Motor Functions

8 basal nuclei and 2 associated nuclei

caudate nucleus

eye movements

nucleus accumbens

motivation into movement

globus palildus (external)

stopping and switching movements

globus pallidus (internal)

suppresses unwanted movement, permits wanted movement

ventral pallidum

motivation into movement

putamen

habitual and learned movements, strength and speed of movements

subthalamic nucleus

suppresses unwanted movement

substantia nigra pars compacta

movement vigor (speed and size)

substantia nigra pars reticulata

suppresses unwanted movement, permits wanted movement, eye saccade movements

ventral tegmental area

modulates motivation into movement

deficits in what type of neurons in SNpc and VTA cause Parkinson’s?

dopaminergic neurons

DBS target for reducing slowness (bradykinesia) in Parkinson’s

subthalamic nucleus

DBS target for reducing unwanted movements in Parkinson’s

globus pallidus (internal)