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. Author manuscript; available in PMC: 2021 Dec 15.
Published in final edited form as: J Neurol Sci. 2020 Nov 1;419:117205. doi: 10.1016/j.jns.2020.117205

Table 1.

Examination and rating Instructions for the TWSTRS-2 AM item (and, for comparison, Rotation item)

Instructions for the videographer during exam:
Front view of participant doing most effective sensory trick or a trial of touching right cheek, left cheek and back of head
Instructions for the AM item in the TWSTRS-2:
A sensory trick is defined as a touch or other movement that influences the severity of the abnormal movements. This item evaluates the degree of improvement when a sensory trick is used. If the patient is unaware of any sensory trick, a trial of touching the cheek, back of the head, or leaning against a wall should be suggested. The improvement in abnormal movements must last at least 5 seconds following application of the trick. If the duration is less than 5 seconds, the score is 4.
TWSTRS-2 Motor Severity subscale: the AM item and another example item (Rotation)
Sensory Trick Score Rotation Score

Complete improvement of posture by one or more tricks 0 None 0
Moderate improvement of posture by one or more tricks 1 Slight 1
Mild improvement of posture by one or more tricks 2 Mild 2
Minimal improvement of posture by one or more tricks 3 Moderate 3
No improvement of posture by one or more tricks 4 Severe 4