Video 8.1 (C8c1): Orthostatic Tremor with Sensory Trick
Subjective unsteadiness while standing that improved immediately with light touch to the examiner or a wall, with relatively preserved gait.
Video 8.2 (C8c2): Classic Orthostatic Tremor
Rapid leg tremor and subjective shakiness developing within seconds of standing, relieved by walking.
Video 8.3 (C8c3): Orthostatic Tremor with Mild Action Tremor
Fine high-frequency leg tremor triggered by standing and accompanied by mild upper-limb action tremor.
Video 8.4 (C8c4): Orthostatic Tremor Responsive to Touch
Severe standing instability relieved by touching a wall or another person despite minimal visible tremor.
Video 8.5 (C8c5): Orthostatic Tremor with Essential Tremor and Primary Writing Tremor
Coexisting orthostatic tremor, essential tremor, and primary writing tremor with preserved walking.
Video 8.6 (C8c6): Severe Orthostatic Tremor
Progressive shakiness on standing causing inability to remain upright, with normal walking.
Video 8.7 (C8c7): Orthostatic Tremor in Parkinsonism
Standing-triggered tremor relieved by light touch, with preserved gait despite mild parkinsonian features.
Video 8.8 (C8c8): Orthostatic Tremor Improved with Clonazepam
Marked standing-induced tremor and imbalance with significant improvement following clonazepam therapy.
Video 8.9 (C8c9): Orthostatic Tremor Improved with Levetiracetam
Subjective leg weakness and truncal sway while standing, relieved by light touch and improved with levetiracetam.
Video 8.10 (C8c10): Orthostatic Tremor with Falls on Standing
Progressive leg tremor causing loss of balance during standing, responsive to levetiracetam.
Video 8.11 (C8c11): Advanced Orthostatic Tremor
Immediate standing tremor with compensatory wide stance and marked instability during tandem position.
Video 8.12 (C8c12): Orthostatic Tremor with Severe Gait Fearfulness
Visible leg tremor and marked unsteadiness on standing, relieved by touching another person.
Video 8.13 (C8c13): Severe Orthostatic Tremor with Anxiety
Profound standing-induced wobbliness improved by touching walls or another person for support.
Video 8.14 (C8c14): Enhanced Physiologic Tremor from Hyperthyroidism
Fine symmetric postural and kinetic tremor associated with tachycardia, exophthalmos, and thyroid enlargement.
Video 8.15 (C8c15): Hyperthyroid Tremor
Fine bilateral high-frequency postural and kinetic tremor with diffuse goiter and otherwise normal neurologic examination.
Video 8.16 (C8c16): Dystonic Head Tremor with Sensory Tricks
Jerky multidirectional neck tremor relieved by chin touch or head contact with a surface.
Video 8.17 (C8c17): Cervical Dystonia with Dystonic Tremor
Irregular neck tremor associated with torticollis and laterocollis, improved by head support.
Video 8.18 (C8c18): DYT1 Dystonia with Dystonic Tremor
Jerky dystonic upper-limb movements and tremor activated by posture and relieved by repositioning.
Video 8.19 (C8c19): Parkinsonian Tremor Spectrum
Examples of classic resting tremor in Parkinson's disease affecting the hands and leg, with re-emergence after repositioning.
Video 8.20 (C8c20): Cerebellar (Holmes) Tremor after Midbrain Lesion
Low-frequency proximal tremor present at rest, posture, and action, worsening during target-directed movements.
Video 8.21 (C8c21): Bilateral Cerebellar Tremor
Coarse proximal tremor with dysmetria, intention worsening, and mild gait ataxia.
Video 8.22 (C8c22): Cerebellar Tremor after Midbrain Hemorrhage
Unilateral proximal tremor affecting arm and leg, associated with hemiparetic gait and impaired dexterity.
Video 8.23 (C8c23): Cerebellar Tremor with Titubation and Oscillopsia
Severe head tremor causing oscillopsia accompanied by prominent proximal arm tremor.
Video 8.24 (C8c24): Valproate (Depakote)-Induced Tremor
Fine fast bilateral postural and kinetic tremor without parkinsonism.
Video 8.25 (C8c25): Mild Valproate-Induced Tremor
Subtle kinetic tremor with preserved gait and only mild tandem gait difficulty.
Video 8.26 (C8c26): Parkinson's Disease Worsened by Risperidone
Severe parkinsonism with facial masking, resting tremor, bradykinesia, and rigidity.
Video 8.27 (C8c27): Tremor Phenotypes in Wilson's Disease
Examples of wing-beating tremor, dystonic tremor, parkinsonism, generalized dystonia, and risus sardonicus.
Video 8.28 (C8c28): Functional Tremor
Variable, irregular tremor affecting the limbs with preserved coordination and persistence during complex gait tasks.