Dean C. Williams, Ph.D

Dean C. Williams, Ph.D.

Dean Williams

Investigator, The Life Span Institute at Parsons,

Ph.D., Psychology, 1989 University of Florida
M.S., Psychology, 1985 University of Florida
B.A., Psychology, 1978 University of Wisconsin

Contact Information


2601 Gabriel 
Parsons, Kansas 67357

(620) 421-6550

Research Interests

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


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


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.