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Dr. Alexander Winkler

Postdoctoral Research Assistant

Phone: +49 (0) 641 / 99 - 26084  
Fax:     +49 (0) 641 / 99 - 26099

Office: F 213
Consultation hours: by arrangement

Research Gate: 

Research Interests

Placebo- und Nocebo-Effekte
Stress & Stressbewältigung
Affektive Störungen


Curriculum Vitae

07/2017 Approbation als Psychologischer Psychotherapeut (VT)

Seit 01/2017 Akademischer Rat
Klinische Psychologie & Psychotherapie, Justus-Liebig-Universität Gießen

04/2016 Erlangung des Doktorgrades der Naturwissenschaften Dr. rer. nat.
Philipps-Universität Marbug (Prof. Winfried Rief)
Placeboeffekte in der pharmakologischen Behandlung von Insomnie

03/2014 - 12/2016 Wissenschaftlicher Mitarbeiter
Klinische Psychologie & Psychotherapie, Philipps-Universität Marburg

11/2012 - 03/2014 Promotionsstipendiat (Prof. Dr. Winfried Rief)
Klinische Psychologie & Psychotherapie, Philipps-Universität Marburg

Seit 08/2011 - 07/2017 Ausbildung zum psychologischen Psychotherapeuten (VT)
Institut für Psychotherapie-Ausbildung Marburg (IPAM)

10/2006 - 08/2011 Studium der Psychologie
Philipps-Universität Marburg



Winkler, A., Hahn, A., & Hermann, C. (2023). The impact of pharmaceutical form and simulated side effects in an open-label-placebo RCT for improving psychological distress in highly stressed students. Scientific Reports, 13(1).

Haas, J. W., Winkler, A., Rheker, J., Doering, B. K., & Rief, W. (2022). No open-label placebo effect in insomnia? Lessons learned from an experimental trial. Journal of Psychosomatic Research, 110923.

Hahn, A., Göhler, A. C., Hermann, C., & Winkler, A. (2022). Even when you know it is a placebo, you experience less sadness: First evidence from an experimental open-label placebo investigation. Journal of Affective Disorders. Advance online publication.

Göhler, A. C., Haas, J. W., Sperl, M. F.J., Hermann, C., & Winkler, A. (2021): Placebo nasal spray protects female participants from experimentally induced sadness and concomitant changes in autonomic arousal. Journal of Affective Disorders, 295, 131–138.

Winkler, A., Jeromin, F., Doering, B. K., & Barke, A. (2020). Problematic smartphone use has detrimental effects on mental health and somatic symptoms in a heterogeneous sample of German adults. Computers in Human Behavior, 113, 106500.

Haas, J. W., Rief, W., Glombiewski, J. A., Winkler, A., & Doering, B. K. (2020). Expectation-induced  placebo effect on acute sadness in women with major depression: An experimental investigation. Journal of Affective Disorders, 274, 920-928.

Winkler, A. & Hermann, C. (2019). Placebo- and Nocebo- Effects in Cognitive Neuroenhancement: When Expectation Shapes Perception. Front. Psychiatry 10:498. doi: 10.3389/fpsyt.2019.00498.

Rheker, J., Rief, W., Doering, B. K., & Winkler, A. (2018). Assessment of adverse events in clinical drug trials: Identifying amitriptyline’s placebo- and baseline-controlled side effects. Experimental and Clinical Psychopharmacology. (1936-2293(Electronic),1064-1297(Print)), 320–326.

Rheker, J., Winkler, A., Doering, B. K., & Rief, W. (2016). Learning to experience side effects after antidepressant intake – Results from a randomized, controlled, double-blind study. Psychopharmacology. doi: 10.1007/s00213-016-4466-8.

Wilhelm, M., Winkler, A., Rief, W., & Doering, B. K. (2016). Effect of placebo groups on blood pressure in hypertension: a meta-analysis of beta-blocker trials. Journal of the American Society of Hypertension, 10(12), 917-929. doi:

Winkler, A., Rheker, J., Doering, B. K., & Rief, W. (2016). Conditioning of amitriptyline-induced REM sleep suppression in healthy participants: A randomized controlled trial. Psychophysiology, 53(10), 1560-1566. doi: 10.1111/psyp.12695.

Auer, C. J., Glombiewski, J. A., Doering, B. K., Winkler, A., Laferton, J. A., Broadbent, E., & Rief, W. (2015). Patients' Expectations Predict Surgery Outcomes: A Meta-Analysis. Int J Behav Med. doi: 10.1007/s12529-015-9500-4.

Winkler A., Rief W. (2015). Effect of placebo conditions on polysomnographic parameters in primary insomnia: a meta-analysis. SLEEP, 38(6):925–931.

Winkler, A., Auer, C., Doering, B., & Rief, W. (2014). Drug Treatment of Primary Insomnia: A Meta-Analysis of Polysomnographic Randomized Controlled Trials. CNS Drugs, 28(9), 799-816. doi: 10.1007/s40263-014-0198-7.

Winkler, A., Dörsing, B., Rief, W., Shen, Y., & Glombiewski, J. A. (2013). Treatment of internet addiction: A meta-analysis. Clinical Psychology Review, 33, 317-29.

Cash, H., Rae, C.D., Steel, A.H., Winkler, A. (2012). Internet addiction: a brief summary of research and practice. Current Psychiatry Reviews, 8(4), 292-298.


Reviewer Activity

Nature Scientific Reports, Clinical Psychology Review, Psychiatry Research, Current Pharmaceutical Design, Addictive Behaviors, Sleep Medicine, Clinical Psychology in Europe, PLOS ONE, International Journal of Behavioral Medicine, Australian and New Zealand Journal of Psychiatry