Description: Segment 1 The opening scene shows a seated woman. The camera pans in to reveal the tremor of her right hand. Marshall describes how this kind of involuntary movement is a sign of neurological disorder. He refers to a chart detailing the classification of different types of involuntary movement. Time start: 00:00:00:00 Time end: 00:05:36:00 Length: 00:05:36:00 Segment 2 A short film is shown in which Marshall interviews a female patient who has a tremor of her right arm. The film clip ends. Marshall shows a family tree in which tremor occurred over three generations. Another short film is shown in which Marshall interviews a female patient with a hand tremor. She describes which activities cause her the most problems. Film clip ends. Time start: 00:05:36:00 Time end: 00:10:55:00 Length: 00:05:19:00 Segment 3 Marshall describes different kinds of tremor. A short film is shown in which he interviews a male patient who has a hand tremor. End of film clip and Marshall explains that the man's tremor was an intention tremor, typical of Parkinson's disease. Time start: 00:10:55:00 Time end: 00:14:26:00 Length: 00:03:31:00 Segment 4 A slide is shown which lists the non-rhythmic types of involuntary movements usually seen in chorea and dystonia. A short film is shown in which Marshall talks to a male patient who has some difficulty speaking. As the patient attempts to leave, he accidentally walks into the wall. End of film clip. Time start: 00:14:26:00 Time end: 00:19:52:12 Length: 00:05:26:12 Segment 6 Marshall talks about myoclonus - short jerky movment affecting the upper limbs. A short film clip is shown in which Marshall interviews a male patient with this condition. Film clip ends. Time start: 00:24:31:12 Time end: 00:28:30:13 Length: 00:03:59:01. Segment 7 Marshall discusses nervous tics. A short film is shown in which marshall interviews a male patient who is not seen but his voice is heard to be forming sentences with difficulty. End of film clip. Marshall concludes the lecture by talking about the most common kinds of involuntary movements. Time start: 00:28:30:13 Time end: 00:32:46:19 Length: 00:04:16:19