Dr. Duncan is a licensed clinical psychologist with extensive experience in cognitive behavior therapy (CBT), motivational interviewing and mindfulness-based approaches. He works with adolescents, adults and families. Dr. Duncan specializes in the treatment of anxiety, anger issues, eating disorders and body-image and weight management issues in both men and women. He also specializes in the treatment of anxiety disorders, obsessive compulsive and works intensively with individuals struggling with regulating their emotions, impulsivity and interpersonal conflicts. Additional areas of expertise include cognitive-neuropsychological and educational assessment.
Dr. Duncan received his B.A. in psychology from Syracuse University, where he won the psychology department awards and obtained his Ph.D. in Clinical Psychology from Sam Houston State University. He completed his clinical training at Patton State Hospital and Central Regional Hospital. Prior to Joining Zackson Psychology Group, Dr. Duncan conducted psychological assessments for the State of Washington.
Dr. Duncan uses a biopsychosocial approach in his practice. He considers the biological, psychological and social factors that influence the way his clients feel and how those factors impact overall health. His work is informed by evidence based treatments. He also provides cognitive-neuro psychological evaluations to assess cognitive functioning, which is used to inform his cognitive treatment attention, memory, language, and executive functions.
Duncan, J.M., Miller, R. (2014, March). The development and validation of a new measure of the Cognitive-Experiential Self Theory. Presented at the annual meeting of the American Psychology-Law Society, New Orleans, Louisiana.
Duncan, J.M. 4 Nelson, A., Duncan, J.M., Burchett, D., Glassmire, D. (2014, March). Examining the Effectiveness of the MMPI-2-RF in Predicting Time to Discharge in a Sample of NGRI Patients. Presented at the American Psychology-Law Society, New Orleans, Louisiana.
Duncan, J.M., Gottfried, E., Gharagozloo, L., Burchett, D., Glassmire, D. (2014, March). Comparison of the Higher-Order Scales of the MMPI-2-RF between IST and NGRI Inpatients. Presented at the American Psychology-Law Society, New Orleans, Louisiana.
Miller, A.K., Duncan, J.M., Taslitz, A.E., Gardner, B.O., Pennington, C., Kline, S., Burks, A., Pennington J.N., Duhon, D.A., Rodriguez, D., Stein, M.L., Gemberling, T.M., & Laxton, K.L. (2013, March). A personality-and-attitude-change model of jury NGRI verdicts: The pivotal role of perspective taking. Presented at the annual meeting of the American Psychology-Law Society, Portland, Oregon.
Miller, A.K., Gardner, B.O., Duncan, J.M., Kline, S., & Vera, L.M. (2013, March). Gender discrimination in the courtroom: An explanatory model of foreperson selection. Presented at the American Psychology-Law Society, Portland, Oregon.
Duncan, J.M., Anastasi, J.S., Vera, L.M., & Wechsler, H.J. (2012, March). Perception of administrator influence’s effect on eyewitness decision-making. Poster presented at the annual meeting of the American Psychology-Law Society, San Juan, Puerto Rico.
Duncan, J.M. 5 Duncan, J.M., Anastasi, J.S., Amacker, A.M., & Becker, K.K. (2011, March). Computer administration and eyewitness identification accuracy. Presented at the American Psychology-Law Society, Miami, FL.
American Psychological Association (APA)
New York State Psychological Association (NYSPA)
Connecticut Psychological Association (CPA)
Associations of Behavioral and Cognitive Therapies
Licensed Psychologist, State of Connecticut (#003659)
License Psychologist State of New York (#021732)
License Psychologist State of Washington (#60602588)
License Psychologist State of North Carolina (#004876)