Association for Behavior Analysis International

The Association for Behavior Analysis International® (ABAI) is a nonprofit membership organization with the mission to contribute to the well-being of society by developing, enhancing, and supporting the growth and vitality of the science of behavior analysis through research, education, and practice.


31st Annual Convention; Chicago, IL; 2005

Event Details

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Symposium #352
Behavioral Assessment and Treatment for Sex Offenders with Mental Retardation
Monday, May 30, 2005
1:30 PM–2:50 PM
Stevens 1 (Lower Level)
Area: DDA; Domain: Applied Research
Chair: Timothy R. Vollmer (University of Florida)
CE Instructor: Timothy R. Vollmer, Ph.D.
Abstract: This symposium will include four papers describing an assessment and treatment model for developmentally disabled sex offenders. The first presentation given by David Pyles will present some prevalence data from the state of Illinois and will highlight many of the administrative and clinical challenges that arise in developing programs for this population. The second presentation given by Robert Reed, is a historical program overview of the Seguin Unit, a program designed for the aforementioned assessment and treatment. The third presentation given by Kimberly Sloman, is a data based description of the collaborative effort between the University of Florida and the Seguin Unit. This collaboration is designed to evaluate the efficacy of existing and proposed procedures. The final presentation given by Jorge Reyes shows some of the outcome data associated with the respondent arousal assessment procedures.
An Evaluation of the Need for Behavioral Services for Sex Offenders with Developmental Disabilities on a Statewide Level
DAVID A. PYLES (Behavior Intervention Systems, Inc.)
Abstract: The goal of the current presentation is to draw attention to the need for an organized program to deal with developmentally delayed sex offenders in the state of Illinois. Currently, no specific program exists to deal with this population. General prevalence statistics will be presented in addition to representative individual case studies where relevant. The presentation should show the need to develop a centralized, behaviorally based treatment program that would deal with all members of the population across the state.
Overview of the Seguin Unit
ROBERT H. REED (The Seguin Unit), Astrid Hall (The Seguin Unit), Timothy R. Vollmer (University of Florida), Jorge Rafael Reyes (University of Florida)
Abstract: This presentation will provide a detailed description of the historical development of the assessment and treatment of sex offenders and the Seguin Unit. The Seguin Unit provides behavioral assessments and treatments for developmentally disabled individuals who have committed felony offenses. The focus of the current presentation is on the approaches that have been developed to assess and treat behavior related to sexual offenses toward children. These assessments and treatments take place in a larger context of skill development and behavioral teaching. The use of plethysmograph technology, portable plethysmograph technology, and the various assessment instruments used for testing of deviant arousal will be described.
University of Florida/Seguin Unit Collaboration
KIMBERLY SLOMAN (University of Florida), Timothy R. Vollmer (University of Florida), Jorge Rafael Reyes (University of Florida), Astrid Hall (The Seguin Unit), Robert H. Reed (The Seguin Unit), Gregory Jensen (The Seguin Unit), Sam Carr (The Seguin Unit)
Abstract: The Seguin Unit provides behavioral assessment and treatment for developmentally delayed sex offenders who have committed crimes against children. Recently, the University of Florida has collaborated with the Seguin Unit to evaluate existing procedures and develop new assessment and treatments. This presentation will describe the proposed model of assessment and treatment and some preliminary outcome data. The model will include classical conditioning approaches related to deviant sexual arousal and operant approaches to skills training. The skills training component is designed to teach appropriate avoidance behavior to situations that may result in dangerous contact with children. This will be described in the context of existing published research.
Assessment and Treatment of Deviant Sexual Arousal
JORGE RAFAEL REYES (University of Florida), Timothy R. Vollmer (University of Florida), Kimberly Sloman (University of Florida), Astrid Hall (The Seguin Unit), Gregory Jensen (The Seguin Unit), Sam Carr (The Seguin Unit)
Abstract: Participants at a treatment facility for adult developmentally delayed offenders were tested for deviant arousal. Data were evaluated to identify differential response patterns to child stimuli (e.g., children wearing bathing suits) in comparison to “normal” arousing stimuli (e.g., adults wearing bathing suits). A system of evaluation was used involving a plethysmograph, designed to measure penile tumescence in the presence of various stimuli. Results showed three general patterns: a) deviant arousal to a specific age category and gender, b) deviant arousal across a range of child age groups, and c) deviant arousal. To our knowledge, this is the first demonstration of repeated measurement of deviant sexual arousal using visual analysis of stability over time. Assessments also included tests of appropriate responding in situations described as high risk. Implications for intervention will be presented, including classical conditioning approach, manipulation of establishing operations, and operant avoidance training



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