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Varieties of Repetitive Behavior in Autism: Comparisons to Mental Retardation.
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Bodfish, James W.; Symons, Frank J.; Parker, Dawn E.; Lewis, Mark H. – Journal of Autism and Developmental Disorders, 2000
A study compared specific repetitive behaviors in 32 adults with autism with 34 controls with mental retardation. The occurrence of each behavior category, except dyskinesias, was higher in individuals with autism and they showed a greater number of topographies of stereotypy and compulsions. Repetitive behavior severity also predicated autism…
Descriptors: Adults, Autism, Behavior Disorders, Behavior Patterns
Dynamical Origins of Stereotypy: Relation of Postural Movements during Sitting to Stereotyped Movements during Body-Rocking
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Newell, Karl M.; Bodfish, James W. – American Journal on Mental Retardation, 2007
The relation between the movement dynamic properties of sitting still and of seated body-rocking in adults with stereotyped movement disorder and mental retardation and a contrast group of typically developing age-matched adults was examined. Continuous measurement of sequential displacements in center-of-pressure was made using a force platform…
Descriptors: Severe Mental Retardation, Human Posture, Motion, Behavior Problems
Evidence for Reciprocal Interaction Effects among Adults with Self-Injury and Their Caregivers
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Wolff, Jason J.; Clary, Jamie; Harper, Vickie N.; Bodfish, James W.; Symons, Frank J. – American Journal on Intellectual and Developmental Disabilities, 2012
Patterns of caregiver responses to client adaptive behavior were compared between adults with intellectual disabilities with and without self-injurious behavior. Participants with moderate to profound intellectual disability and self-injury (n = 89) and age/IQ matched control participants (n = 20) were selected from a large sample of adults living…
Descriptors: Self Destructive Behavior, Caregivers, Mental Retardation, Adults
Evidence of Increased Non-Verbal Behavioral Signs of Pain in Adults with Neurodevelopmental Disorders and Chronic Self-Injury
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Symons, Frank J.; Harper, Vicki N.; McGrath, Patrick J.; Breau, Lynn M.; Bodfish, James W. – Research in Developmental Disabilities: A Multidisciplinary Journal, 2009
The role of pain in relation to self-injurious behavior (SIB) among individuals with intellectual disabilities is not well understood. Some models of SIB are based on altered endogenous opioid system activity which could result in elevated pain thresholds. In this study, non-verbal behavioral signs indicative of pain as measured by the…
Descriptors: Control Groups, Self Destructive Behavior, Mental Retardation, Pain
Stereotypy and Motor Control: Differences in the Postural Stability Dynamics of Persons with Stereotyped and Dyskinetic Movement Disorders.
Bodfish, James W.; Parker, Dawn E.; Lewis, Mark H.; Sprague, Robert L.; Newell, Karl M. – American Journal on Mental Retardation, 2001
This study examined whether dynamic measures of postural stability differentiated stereotyped movement disorder from dyskinetic movement disorder in a severely mentally retarded population. Participants (N=20) with either stereotypy or dyskinesia movement disorders and a control group were given a goal-oriented postural stability task. Both groups…
Descriptors: Adults, Clinical Diagnosis, Human Posture, Multiple Disabilities
Altered Diurnal Pattern of Salivary Substance P in Adults with Developmental Disabilities and Chronic Self-Injury.
Symons, Frank J.; Sutton, Kelly A.; Walker, Cheryl; Bodfish, James W. – American Journal on Mental Retardation, 2003
Morning and afternoon salivary substance P and cortisol levels were measured in 26 adults with chronic self-injurious behavior (SIB) and severe developmental disabilities and compared with controls without SIB. Chronic SIB was associated with an altered diurnal pattern of salivary substance P, characterized by lower levels of morning substance P.…
Descriptors: Adult Education, Adults, Behavior Disorders, Biological Influences