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Dean C. Williams, PhD

Senior Scientist
PhD, Behavior Analysis/Psychology, University of Florida
Primary office:
620-421-6550 ext. 1893
Parsons Research Center

Areas of Interest

Behavioral Pharmacology in intellectual disabilities (ID) and autism spectrum disorder (ASD)

  • Effects of psychoactive medications on cognitive and aberrant behaviors
  • Effects of drugs on animal models of ID and ASD

Funded Projects

NIH: Transition State Analysis Of Cab In Laboratory, Clinical & Naturalistic Settings

USDE: Steppingstones of Technology Innovation for Children With Disabilities Improving outcomes for young children with hearing impairment and other disabilities: Technology for audiometric assessment

KCART : Bio-behavioral measures of aversive transitions in children with ASD

KCART: Propranolol Administration on Autonomic and Behavioral Responses in Children with ASD


Representative Publications and Presentations

Hayashi, Y., Hall, S. E., & Williams, D. C. (in press). Effects of signaled reinforcer magnitude on delayed matching-to-sample performance in individuals with intellectual disabilities. Behavioural Processes.

Doughty, A. H. & Williams, D. C. (2013). Procedures for Increasing Sustained Attention in Adults with Mild Intellectual Disabilities, The Psychological Record, 63, 99-110.

Williams, D.C., Saunders, K.J., & Perone, M. (2011). Extended pausing by human participants on multiple fixed-ratio schedules with varied reinforcer magnitude and response requirements, Journal of the Experimental Analysis of Behavior, 95 (2), 57-71.

Anderson, C. M., Doughty, S. S., Doughty, A. H., Williams, D. C., & Saunders, K. J. (2010). Evaluation of stimulus control over a communication response as an intervention for stereotypical responding. Journal of Applied Behavior Analysis. 43, 333-339

Doughty, S. S., Anderson, C. M., Doughty, A. H., Williams, D. C., & Saunders, K. J. (2007). Discriminative control of punished stereotyped behavior in humans. Journal of the Experimental Analysis of Behavior. 87, 325-336.

Yoo, J. H., Valdovinos, M. G., & Williams, D. C. (2007). Relevance of Donepezil in enhancing learning and memory in special populations: A review of the literature. Journal of Autism and Developmental Disorders, 37, 1883-1901.

Williams, D. C., Johnston, M. D., & Saunders, K. J. (2006). Intertrial sources of stimulus control and delayed matching-to-sample performance in humans. Journal of the Experimental Analysis of Behavior, 86, 253-267.

Yoo, J. H., Williams, D. C., Napolitano, D. A., Peyton, R. T., Baer, D. M., & Schroeder, S. R. (2003). Rate-decreasing effects of the atypical neuroleptic risperidone attenuated by conditions of reinforcement in a woman with mental retardation. Journal of Applied Behavior Analysis, 36, 245-248.

Williams, D. C., Jack, S. L., Mahon, K. L., & Shores, R. E. (2002). Measuring effects of drugs on human social behaviors. Experimental Analysis of Human Behavior Bulletin, 20, 9-12.

Williams, D. C., & Saunders, K. J. (1997). Methodological issues in the study of drug effects on cognitive skills in mental retardation. In N. W. Bray (Ed), International review of research in mental retardation (Vol. 21, pp. 147-185). New York: Academic Press.


Recent Awards and Service

Board of Editors, Journal of the Experimental Analysis of Behavior

Board of Editors, The Behavior Analyst

Editor, Experimental Analysis of Human Behavior Bulletin

President, Southeastern Association for Behavior Analysis

Faculty of Postdoctoral Training in Translational Research on Intellectual and Developmental Disabilities program

Fellow of the American Psychological Association

University of Kansas Leading Light Award for Research

James A. Shannon Directors Award for Merits


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