Transcription of Abnormal Involuntary Movement Scale (AIMS)
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RatingClinician-ratedAdministration time5 minutesMain purpose To assess level of dyskinesias inpatients taking neuroleptic medications Population Adults CommentaryThe AIMS is a 12-item clinician-rated Scale to assessseverity of dyskinesias (specifically, orofacial movementsand extremity and truncal movements) in patients takingneuroleptic medications. Additional items assess the over-all severity, incapacitation, and the patient s level ofawareness of the movements, and distress associated withthem. The AIMS has been used extensively to assess tar-dive dyskinesia in clinical trials of antipsychotic medica-tions. Due to its simple design and short assessment time,the AIMS can easily be integrated into a routine clinicalevaluation by the clinician or another trained are scored on a 0 (none) to 4 (severe) basis; the scaleprovides a total score (items 1 through 7) or item 8 can beused in isolation as an indication of overall severity ofsymptoms.
For the movement ratings (the first three categories below), rate the highest severity observed. 0 = none, 1 = minimal (may be extreme normal), 2 = mild, 3 = moderate, and 4 = severe. According to the original AIMS instructions, one point is subtracted if movements are seen only on activation, but not all investigators follow that convention.
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