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Dr. Ran Littman 

ד"ר רן ליטמן 

Alumni                                                                                                                                                                          Email:






Ran is a Doctor of Clinical Psychology who specializes in CBT for OCD, anxiety disorders, and specifically Relationship OCD (ROCD). He is part of a clinical research team that focuses on developing, advancing, and making ROCD treatment accessible.
Ran's research interests revolve around exploring the profound impact of OCD and ROCD on individuals' lives and relationships. In addition, he studies mechanisms of cognitive control, particularly in situations where conflicting task
demands arise, such as the interplay between stimulus-driven and goal-directed processes.


Ran’s column about ROCD in Psychology Today magazine.

Littman, R., Hochman, S., & Kalanthroff, E. (2023). Reliable affordances: A generative modeling approach for test-retest reliability of the affordances task. Behavior Research Methods, 1-10. doi: 10.3758/s13428-023-02131-3


Littman, R., Leibovits, G., Halfon, C. N., Schonbach, M., & Doron, G. (2023). Interpersonal transmission of ROCD symptoms and susceptibility to infidelity in romantic relationships. Journal of Obsessive-Compulsive and Related Disorders, 37, 100802. doi:10.1016/j.jocrd.2023.100802

Littman, R., & Kalanthroff, E. (2022). Neutral affordances: Task conflict in the affordances task. Consciousness and cognition, 97, 103262. doi: 10.1016/j.concog.2021.103262

Littman, R., & Kalanthroff, E. (2021). Control over task conflict in the Stroop and affordances tasks: an individual differences study. Psychological Research, 85(6), 2420-2427. doi:10.1007/s00426-020-01411-3

Littman, R., Naftalovich, H., Huppert, J. D., & Kalanthroff, E. (2020). Impact of COVID‐19 on obsessive–compulsive disorder patients. Psychiatry and Clinical Neurosciences, 74(12), 660-661. doi:10.1111/pcn.13152

Littman, R. *, Keha, E. *, & Kalanthroff, E. (2019). Task conflict and task control: A mini-review. Frontiers in Psychology, 10, 1598. doi: 10.3389/fpsyg.2019.01598


Horwitz, B.*, Littman, R.*, Greenberg, D., & Huppert., J. (2019). A qualitative analysis of contemporary ultra-orthodox rabbinical perspectives on scrupulosity. Mental Health, Religion and Culture. 22(1), 82-98. doi: 10.1080/13674676.2019.1585778

* These authors contributed equally to this research

Littman, R., & Takács, Á. (2017). Do all inhibitions act alike? A study of go/no-go and stop-signal paradigms. PloS one, 12, e0186774.

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