An analogue assessment of repetitive hand behaviours in girls and young women with Rett syndrome

Autor:	Rebecca H. Mount, Tony Charman, Lorna Wales
Rok vydání:	2004
Předmět:	medicine.medical_specialty Adolescent Stereotypic Movement Disorder Rett syndrome Stimulation Scoliosis Audiology Affect (psychology) Severity of Illness Index Apraxia Developmental psychology Neurodevelopmental disorder Arts and Humanities (miscellaneous) Stereotypy Rett Syndrome medicine Humans Spasticity Rehabilitation Videotape Recording Hand medicine.disease Psychiatry and Mental health Neurology Female Neurology (clinical) medicine.symptom Psychology
Zdroj:	Journal of Intellectual Disability Research. 48:672-678
ISSN:	1365-2788 0964-2633
Popis:	Background Rett syndrome is a neurodevelopmental disorder that almost exclusively affects females. In addition to neurodevelopmental regression and loss of hand skills, apraxia, deceleration of head growth, and increasing spasticity and scoliosis, a number of behavioural features are also seen, including stereotypic hand movements, hyperventilation and breath holding. The aim of the study was to investigate the extent to which analogue environmental conditions affected the frequency of repetitive hand behaviour in eight girls and young women with Rett syndrome. Method The frequency of repetitive hand movements was observed every 10 s for four 4-min sessions under the following conditions: Continuous Adult Attention, Adult Demands, Stimulation and No Stimulation. Results The frequency of repetitive hand movements was high - they occurred in above 60% of all intervals in all conditions for all participants and at nearly 100% for some participants in some conditions. For one participant the frequency of repetitive hand movements was somewhat reduced in the Stimulation condition; for another it was relatively increased in the No Stimulation condition. Conclusions Overall, environmental manipulations had relatively limited effects on repetitive hand behaviours. Repetitive hand behaviour in Rett syndrome may be maintained by automatic reinforcement or neurochemical processes and may not be primarily influenced by contingent reinforcement
Databáze:	OpenAIRE
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