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Dr. Clemens Speth – Psychotherapist in Bonn

Profile

I am a neuroscientist, psychologist, and psychotherapist with years of experience in clinical practice (outpatient and inpatient). Furthermore, I am active in therapy and basic research both domestically and abroad.To support individuals struggling with insomnia, I authored a comprehensive guidebook published by Springer Nature.

Titles & Degrees

Psychological Psychotherapist (Approbation / Licensure)
State Examination Office for Medicine, Psychotherapy and Pharmacy North Rhine-Westphalia
Doctor of Philosophy (PhD) Cognitive Neuroscience
University of Dundee, Scotland
Master of Advanced Studies: Psychotherapy with a focus on Behavioral Therapy
University of Bern, Switzerland
Master of Science (Neuroscience)
University of Bonn, Germany
Diploma in Psychology
University of Bonn, Germany

Chronic Sleep Disorders

This practical guide offers science-based, clinically tested, and sustainable strategies for coping with sleep problems (Springer Nature).

To the book (German)

Book cover: Chronische Schlafstörungen bewältigen

Selected Publications

Article
Sheaves B, Cropley VL, Moseley P, Woodruff PWR, Punton G, Speth C, Speth J, Meerlo P, Brederoo SG. Towards an Integrative Account of Potential Mechanisms Mediating the Path From Sleep Dysfunction to Hallucinations. Schizophr Bull. 2025 Oct 6;51.
Book
Speth, C. & Speth J. Chronische Schlafstörungen bewältigen. Ein kompaktes Trainingsprogramm für Betroffene. Springer Nature.
Article
Speth, J., Speth, C., Kaelen, M., Schloerscheidt, A., Feilding, A., Nutt, D., & Carhart-Harris, R. Decrease in mental time travel to the past correlates with default-mode network disintegration under lysergic acid diethylamide. Journal of Psychopharmacology 30(4), 344-53.
Article
Speth, C., & Speth, J. A New Measure of Hallucinatory States and a Discussion of REM Sleep Dreaming as a Virtual Laboratory for the Rehearsal of Embodied Cognition. Cognitive Science, 42(1), 311-333.
Article
Speth, J., Harley, T. A., & Speth, C. Auditory Verbal Experience and Agency in Waking, Sleep Onset, REM, and Non‐REM Sleep. Cognitive Science, 41(3), 723-743.
Article
Speth, J., Schloerscheidt, A. M., & Speth, C. As we fall asleep we forget about the future: A quantitative linguistic analysis of mentation reports from hypnagogia. Consciousness and Cognition, 45, 235-244.
Article
Speth, J., & Speth, C. Motor imagery in REM sleep is increased by transcranial direct current stimulation of the left motor cortex (C3). Neuropsychologia, 86, 57-65.
Article
Speth, C. & Speth, J. The borderlands of waking: Quantifying the transition from reflective thought to hallucination in sleep onset. Consciousness and Cognition, 41, 57-63.
Article
Speth, J., Speth, C., & Harley, T. Transcranial direct current stimulation of the motor cortex in waking resting state induces motor imagery. Consciousness and Cognition, 36, 298-305.
Article
Voss, U., Schermelleh-Engel, K., Windt, J., Frenzel, C., & Hobson J.A. Measuring consciousness in dreams: The lucidity and consciousness in dreams scale. Consciousness and Cognition, 22, 8-21.
Article
Speth, J., Frenzel, C., & Voss, U. A differentiating empirical linguistic analysis of dreamer activity in reports of EEG-controlled REM-dreams and hypnagogic hallucinations. Consciousness and Cognition, 22, 1013-1021.
Article
Voss, U., Frenzel, C., Koppehle-Gossel, J., & Hobson, J.A. Lucid Dreaming: An age dependent brain dissociation. Journal of Sleep Research, 21, 634-642.