Abnormal Involuntary Movement Scale Clinical Classification

**Semantic type:** Intellectual Product

**Definition:** A standardized rating scale developed by William Guy in 1976 which is used to evaluate the severity of tardive dyskinesia in individuals taking neuroleptic agents. This instrument contains 5 sections with a total of 12 items pertaining to facial and oral movements, global judgments, trunk movements, dental status, and extremity movements. Each item is rated on either a 0 to 4 scale with 0 being none and 4 being severe, or as 'yes' or 'no.'

**Synonyms:** - AIMS - AIMS - AIMS01