Video 7.1 (C7c1): Classic Essential Tremor
Mild head and voice tremor with postural and kinetic hand tremor affecting finger-to-nose testing, pouring, and targeting tasks.
Video 7.2 (C7c2): Mild Essential Tremor
Subtle vocal tremor with mild postural tremor and moderate action tremor during spiral drawing and pouring.
Video 7.3 (C7c3): Asymmetric Essential Tremor
Mild vocal tremor with severe right-hand action tremor causing marked impairment of writing and utensil use.
Video 7.4 (C7c5): Essential Tremor with Voice Tremor
Moderate vocal tremor, bilateral postural and kinetic tremor, and difficulty with tandem gait.
Video 7.5 (C7c6): Essential Tremor with Jaw Tremor
Prominent jaw tremor, moderate voice tremor, and mild postural and kinetic arm tremor.
Video 7.6 (C7c7): Isolated Vocal Tremor
Prominent 4 Hz voice tremor with only minimal limb tremor.
Video 7.7 (C7c8): Severe Vocal and Head Tremor
Marked voice and head tremor with visible laryngeal oscillation and moderate upper-limb action tremor.
Video 7.8 (C7c9): Essential Tremor with Head and Voice Involvement
Moderate vocal and no-no head tremor accompanied by prominent postural and kinetic hand tremor.
Video 7.9 (C7c10): Severe Upper Limb Essential Tremor
Markedly disabling postural and action tremor, worse in the dominant hand, preventing writing.
Video 7.10 (C7c11): Essential Tremor with Rest Tremor
Rest, postural, and kinetic tremor with visual feedback dependence and impaired tandem gait.
Video 7.11 (C7c12): Severe Essential Tremor after DBS Adjustment
Coarse bilateral postural and action tremor with severe functional impairment and asymmetric stimulation effects.
Video 7.12 (C7c13): Advanced Essential Tremor
Severe bilateral action tremor causing inability to write, draw spirals, or pour liquids.
Video 7.13 (C7c14): Mild Essential Voice Tremor
Tremor limited predominantly to sustained phonation and singing.
Video 7.14 (C7c15): Isolated Essential Voice Tremor
Prominent pharyngeal and laryngeal tremor without limb involvement.
Video 7.15 (C7c16): Severe Isolated Vocal Tremor
Marked pharyngeal and laryngeal tremor affecting speech and sustained phonation.
Video 7.16 (C7c17): Isolated Head Tremor
Mild no-no head tremor without voice or limb tremor.
Video 7.17 (C7c18): Severe Isolated Head Tremor
Prominent no-no head tremor with minimal limb tremor.
Video 7.18 (C7c19): Head and Voice Tremor Syndrome
Combined no-no head tremor and voice tremor without upper-limb involvement.
Video 7.19 (C7c20): Essential Voice Tremor with Mild Head Tremor
Prominent vocal tremor causing speech interruptions with minimal head tremor.
Video 7.20 (C7c21): Cranial Essential Tremor
Voice, palate, pharyngeal, laryngeal, and head tremor without limb tremor.
Video 7.21 (C7c22): Severe Vocal Tremor with Jaw Involvement
Vocal tremor causing voice breaks with only minimal kinetic limb tremor.
Video 7.22 (C7c23): Unilateral Essential Tremor
Position-specific left-hand tremor with writing difficulty, mirror tremor, and mild voice tremor.
Video 7.23 (C7c24): Primary Writing Tremor with Mirror Tremor
Task-specific right-hand tremor during writing and targeting tasks with mirror tremor of the opposite hand.
-Pending
Video 7.24 (C7c25): Isolated Primary Writing Tremor
Regular oscillatory tremor occurring exclusively during writing.
Video 7.25 (C7c26): Primary Writing Tremor
Task-specific wrist tremor triggered by pen use and writing, absent during other activities.
Video 7.26 (C7c27): Primary Writing Tremor with Vertical Writing
Writing-induced tremor present on paper and wall-writing tasks.
Video 7.27 (C7c28): Primary Writing Tremor with Mirror Movements
Writing-triggered tremor and contralateral mirror tremor without other tremor manifestations.
Video 7.28 (C7c29): Task-Specific Writing Tremor
Writing-induced tremor with contralateral mirror tremor and no spiral tremor.
Video 7.29 (C7c30): Primary Writing Tremor with Coexisting ET
Writing tremor associated with characteristic essential tremor spiral and mirror tremor.
Video 7.30 (C7c31): Task-Specific Occupational Tremor (Dentist)
Occupation-related tremor triggered only during dental working postures.
Video 7.31 (C7c32): Task-Specific Tremor Responsive to Botulinum Toxin
Position-dependent pronation-supination tremor improved with targeted botulinum toxin injections.
Video 7.32 (C7c33): Musician's Tremor (Violin Bow Arm)
Task-specific wrist tremor triggered only while holding and using a violin bow.
Video 7.33 (C7c34): Violinist's Bowing Tremor
Position-specific bow-arm tremor reproduced by simulated instrument posture.
Video 7.34 (C7c35): Severe Violinist's Tremor
Task-specific bowing tremor impairing sound production and improved by muscle stabilization.
Video 7.35 (C7c36): Bowing Tremor in Violin Performance
Arm tremor occurring only during active violin playing.
Video 7.36 (C7c37): Musician's Tremor with Mild Essential Tremor
Task-specific bow-arm tremor superimposed on mild essential tremor.
Video 7.37 (C7c38): String Instrument Bowing Tremor
Tremor triggered specifically when bow contacts the string, partially responsive to botulinum toxin.
Video 7.38 (C7c39): Musician's Tremor of the Fingering Hand
Task-specific tremor affecting left-hand finger positioning during performance.
Video 7.39 (C7c40): Primary Writing Tremor Progressing to Essential Tremor
Longstanding writing tremor later accompanied by rest, kinetic, and spiral tremor typical of ET.
Video 7.40 (C7c41): Primary Writing Tremor with Essential Tremor Features
Writing tremor associated with mild voice, rest, postural, and kinetic tremor.
Video 7.41 (C7c42): Primary Writing Tremor and Essential Tremor
Classic writing tremor occurring alongside bilateral action tremor and ET spirals.
Video 7.42 (C7c43): Severe Primary Writing Tremor with ET
Task-specific writing tremor with profound tremor during spiral drawing but absent finger-to-nose tremor.
Video 7.43 (C7c44): Essential Voice Tremor Responsive to Primidone
Moderate voice tremor with improvement after primidone treatment.
Video 7.44 (C7c45): Essential Voice Tremor Responsive to Sodium Oxybate
Isolated vocal tremor showing marked short-term improvement after sodium oxybate.
Video 7.45 (C7c46): Chronic Vocal Tremor Treated with Sodium Oxybate
Prominent voice tremor with sustained long-term benefit from sodium oxybate.
Video 7.46 (C7c47): Voice and Head Tremor Responsive to Sodium Oxybate
Moderately severe vocal and head tremor improving after sodium oxybate administration.
Video 7.47 (C7c48): Essential Tremor Responsive to Sodium Oxybate
Severe upper-limb action tremor markedly improved after sodium oxybate treatment.
Video 7.48 (C7c49): Musician's Tremor Treated with Botulinum Toxin
Instrument-specific finger tremor improved following ultrasound-guided botulinum toxin injections.
Video 7.49 (C7c50): Task-Specific Tremor Treated with Botulinum Toxin
Examples of essential and task-specific tremors showing functional improvement after targeted injections.
Video 7.50 (C7c51): Essential Tremor Treated with Focused Ultrasound Thalamotomy
Severe medically refractory tremor with marked post-procedural improvement following Vim HIFU thalamotomy.