Functional Movement Disorders (Part 2): Functional Tremor, Shaking and Functional Gait Disorders
Functional Tremor
Video 15.12 (C15c12): Functional Gait Disorder with Shaking
Astasia-abasia and truncal flexion occurring only during standing and walking.
Video 15.13 (C15c13): Functional Cervical Tremor
Variable neck shaking with astasia-abasia gait and nonphysiologic spiral findings.
Video 15.14 (C15c14): Functional Generalized Shaking
Variable-amplitude shaking affecting limbs and trunk with dramatic gait impairment.
Video 15.15 (C15c15): Functional Leg Shaking
Continuous leg shaking accompanied by relative indifference and preserved coordination.
Video 15.16 (C15c16): Functional Gait Disorder
Highly unusual gait with excessive stepping, pelvic tilting, and preserved tandem abilities.
Video 15.17 (C15c17): Functional Leg Tremor
Variable bilateral leg shaking with knee-knocking and astasia-abasia features.
Video 15.18 (C15c18): Functional Upper-Limb Tremor
Complex variable tremor with preserved finger-to-nose accuracy and inconsistent disability.
Video 15.19 (C15c19): Functional Head and Truncal Tremor
Continuous head movements relieved by turning the head and accompanied by gait bouncing.
Video 15.20 (C15c20): Functional Gait and Tremor Syndrome
Bouncing gait, give-way weakness, and prominent astasia-abasia.
Video 15.21 (C15c21): Generalized Functional Tremor
Variable whole-body shaking with differing phenomenology during sitting versus standing.
Video 15.22 (C15c22): Distractible Functional Tremor
Body shaking improving with motor entrainment and distraction.
Video 15.23 (C15c23): Functional Tremor with Speech Disturbance
Arm shaking and speech changes provoked by simple motor tasks.
Video 15.24 (C15c24): Functional Arm Tremor
Tremor during action without impairment of target accuracy.
Video 15.25 (C15c25): Functional Monomelic Tremor
Persistent unilateral arm tremor with inconsistent neurologic findings.
Video 15.26 (C15c26): Entrainable Functional Tremor
Bilateral arm tremor suppressed by contralateral motor tasks.
Video 15.27 (C15c27): Functional Generalized Shaking
Whole-body shaking relieved by purposeful movements and targeting tasks.
Video 15.28 (C15c28): Functional Tremor Mimicking Parkinson Disease
Rest, postural, and action tremor lacking characteristic Parkinsonian features.
Video 15.29 (C15c29): Functional Facial Pulling and Tremor
Facial asymmetry, truncal flexion movements, belching, and task-dependent tremor.
Video 15.30 (C15c30): Functional Generalized Tremor
Continuous variable shaking with spontaneous imbalance and astasia-abasia.
Video 15.31 (C15c31): Distractible Functional Tremor
Latency-dependent hand tremor abolished by cognitive distraction.
Video 15.32 (C15c32): Functional Rest Tremor with Gait Disorder
Variable unilateral tremor and incongruent leg-dragging gait.
Video 15.33 (C15c33): Functional Bilateral Tremor
Asynchronous rest tremor with variable suppression and nonphysiologic spiral performance.