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Guess, Doug; Carr, Edward – American Journal on Mental Retardation, 1991
A three-level model explains the emergence and maintenance of rhythmic stereotypy and self-injury in disabled individuals: Level 1, internally regulated rhythmic behaviors; Level 2, stereotypy and self-injury as adaptive responses to understimulating or overstimulating environments; and Level 3, stereotypy and self-injury as learned behaviors to…
Descriptors: Adaptive Behavior (of Disabled), Behavior Patterns, Behavior Problems, Developmental Stages