Postural and Intention Tremors in Essential Tremor and Parkinson's Disease

Abstract

<p>VIDEOTAPE LEGEND</p> <p>1. Clinical Impression 1: Proximal (i.e., wrist) postural tremor rather than distal (MCP + phalanges [including thumb]) postural tremor occurs in the left arm of this ET patient.</p> <p>2. Clinical Impression 1: Proximal (i.e., wrist) postural tremor rather than distal (MCP + phalanges [including thumb]) postural tremor occurs in the right arm of this ET patient.</p> <p>3. Clinical Impression 1: Distal (esp. MCP) postural tremor rather than proximal (i.e., wrist, elbow, shoulder) postural tremor occurs in the left arm of this PD patient.</p> <p>4. Clinical Impression 2: Postural tremor, as seen in the right arm of this ET patient, typically produces wrist flexion-extension rather than wrist pronation-supination.</p> <p>5. Clinical Impression 2: Postural tremor, as seen in the right arm of this ET patient, involves wrist flexion-extension.</p> <p>6. Clinical Impression 2: Postural tremor, as seen in the right arm of this PD patient, typically produces wrist pronation-supination rather than flexion-extension.</p> <p>7. Clinical Impression 2: Postural tremor, as seen in the right arm of this PD patient, typically produces wrist pronation-supination.</p> <p>8. Clinical Impression 4: Intention tremor, which often occurs in ET (see left arm), is rare in PD.</p> <p>9. Clinical Impression 4: Intention tremor, which often occurs in ET (see left arm), is rare in PD.</p> <p>10. Clinical Impression 4: Intention tremor is not seen in this PD patient.</p> <p>11. Clinical Impression 4: Intention tremor is not seen in this PD patient.</p