distractibility Difficulty concentrating and focusing on  tasks; attention is easily divert-
ed by extraneous stimuli; difficulty main taining goal-focused behavior, including both
planning and completing tasks. Distractibilit y is a facet of the broad personality trait
domain D ISINHIBITION .
dysarthria A disorder of speech sound production due to structural or motor impair-
ment affecting the articulatory apparatus. Such disorders include cleft palate, muscle