Cerebellar & basal ganglia pathology

cerebellar: asthenia

generalized muscle weakness

cerebellar: asynergia

loss of ability to associate muscles together for complex movements

cerebellar: dysarthria

disorder of the motor component of speech articulation

cerebellar: dyssynergia

movement performed in a sequence of component parts rather than as a single, smooth activity; decomposition

cerebellar: rebound phenomenon

inability to halt forceful movements after resistive stimulus removed; patient unable to stop sudden limb motion

cerebellar: titubation

rhythmic oscillations of the head; axial involvement of the trunk

basal ganglia: athetosis

slow, involuntary, writhing, twisting, "wormlike" movements; frequently greater involvement in distal UEs

basal ganglia: chorea

involuntary, rapid, irregular, jerky movements involving multiple joints; most apparent in UEs

basal ganglia: choreoathetosis

movement disorder with features of both chorea and athetosis

basal ganglia: hemiballismus

large-amplitude sudden, violent, flailing motions of the arm and leg of one side of the body

basal ganglia: leadpipe rigidity

uniform, constant resistance as limb is moved

basal ganglia: cogwheel rigidity

series of brief relaxations or "catches" as limb is passively moved