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Felix Bermpohl

8 papers in the library · 167 citations · publishing 2005-2025

Papers

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Sporadic use of classic psychedelics and neuropsychological performance: A cross-sectional analysis.

Progress in Neuro-Psychopharmacology and Biological Psychiatry April 2, 2025 Simon Reiche, Tim Hirschfeld, Anna Lena Gröticke et al. 5 citations

Evidence on the neuropsychological consequences of classic psychedelics like psilocybin, LSD, and ayahuasca is conflicting, and little is known about how sporadic use of psychedelics under naturalistic conditions may affect cognitive functioning. Given the growing interest in the therapeutic potential of psychedelics and the rise in non-medical use, further exploration into their...

Connected to the spirit of the frog: An Internet-based survey on Kambô, the secretion of the Amazonian Giant Maki Frog (Phyllomedusa bicolor): Motivations for use, settings and subjective experiences

Journal of Psychopharmacology March 4, 2021 Tomislav Majić, Meike Sauter, Felix Bermpohl et al. 14 citations

Background/aim: Kambô is a name for the secretion of the Giant Maki Frog ( Phyllomedusa bicolor), which has been used by indigenous cultures from the Amazonas basin and has recently become popular in alternative healing circles in Western countries, with a certain overlap with psychedelic self-exploration. Methods: We carried out an online-based survey in English (54.92%) and German...

DOI: 10.1177/0269881121991554 (opens in new tab) Feeling Mental health Indigenous Demography

Acute and subacute psychoactive effects of Kambô, the secretion of the Amazonian Giant Maki Frog (Phyllomedusa bicolor): retrospective reports

Scientific Reports December 9, 2020 Timo Torsten Schmidt, Simon Reiche, Caroline L. C. Hage et al. 12 citations

Kambô, the secretion of the Amazonian Giant Leaf Frog (Phyllomedusa bicolor) contains a plethora of bioactive peptides and was originally used by indigenous communities from the Amazon basin as medicine for improving hunting capacities. In the last 20 years, Kambô has spread to Western urban healing circles. To date it is still controversial whether the acute effects of Kambô include...

Is Kambô psychoactive? Acute and subacute effects of the secretion of the Giant Maki Frog (Phyllomedusa bicolor) on human consciousness

bioRxiv (Cold Spring Harbor Laboratory) July 24, 2020 Timo Torsten Schmidt, Simon Reiche, Caroline L. C. Hage et al. preprint

ABSTRACT Kambô is the name for the secretion of the Giant Leaf Frog (Phyllomedusa bicolor) containing a plethora of bioactive peptides. Originally, it is ritually used by different ethnicities from the Amazon basin as a remedy against bad luck in hunting. In the last twenty years, Kambô has spread to Western urban centers, often associated with the use of ayahuasca. Anecdotal reports claim...

Self-Compassion Mediates the Relationship Between Mindfulness and Borderline Personality Disorder Symptoms.

Journal of personality disorders November 9, 2017 Hannah J. Scheibner, Anna Daniels, Simon Guendelman et al.

Individuals suffering from borderline personality disorder (BPD) experience difficulties with mindfulness. How mindfulness influences BPD symptoms, however, is still unknown. We hypothesized that the relationship between mindfulness and BPD symptoms would be mediated by self-compassion. In study 1, we recruited 29 individuals with BPD and 30 group-matched healthy controls. In study 2, we...

Internal and external attention and the default mode network

Neuroimage January 18, 2017 Hannah J. Scheibner, Carsten Bogler, Tobias Gleich et al. 136 citations

Focused attention meditations have been shown to improve psychological health and wellbeing and are nowadays an integral part of many psychotherapies. While research on the neural correlates of focused attention meditation is increasing, findings vary on whether meditations are associated with high or low activity in the default mode network (DMN). To clarify the relationship between focused...

Behavioral Assessment of Mindfulness Difficulties in Borderline Personality Disorder

Mindfulness December 1, 2016 Hannah J. Scheibner, Stefanie Spengler, Phillipp Kanske et al.

Although mindfulness plays an important role in the treatment of borderline personality disorder (BPD), few studies have investigated whether individuals with BPD show difficulties in mindfulness. Those studies have relied exclusively on questionnaire data. Here, we used a more objective, behavioral assessment of mindfulness difficulties in BPD that allowed us to distinguish difficulties in...

DOI: 10.1007/s12671-016-0572-2 (opens in new tab) Full text (opens in new tab) Mindfulness Mind-wandering Borderline personality disorder Behavioral research

NMDA hypofunction in the posterior cingulate as a model for schizophrenia: an exploratory ketamine administration study in fMRI.

Schizophrenia Research January 1, 2005 Georg Northoff, Andre Richter, Felix Bermpohl et al.

Based on animal data, NMDA receptor hypofunction has been suggested as a model for positive symptoms in schizophrenia. NMDA receptor hypofunction affects several corticolimbic brain regions, of which the posterior cingulate seems to be the most sensitive. However, empirical support for a crucial role of posterior cingulate NMDA hypofunction in the pathophysiology of positive symptoms is still...