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Jakub Korčák

9 papers in the library · 124 citations · publishing 2016-2026

Papers

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EEG microstate dynamics during psilocybin intoxication relate to acute experience and persisting psychological changes

bioRxiv (Cold Spring Harbor Laboratory) June 12, 2026 Nikola Jajcay, Čestmír Vejmola, Jakub Korčák et al.

Abstract Psilocybin and other serotonergic psychedelics show therapeutic promise for psychiatric disorders, yet objective neural correlates linking the acute psychedelic state to persisting psychological outcomes remain limited. Electroencephalography (EEG) microstate analysis characterizes the rapid spatiotemporal organization of large-scale brain activity, offering a millisecond-resolution...

Regional specificity of the cingulate cortex thickness association with the intensity of psilocybin experience: a replication study

Psychopharmacology December 13, 2025 David Greguš, Jaroslav Hlinka, Filip Tylš et al.

Individual variability in psilocybin response is a major challenge for psychedelic-assisted therapy, with structural brain features potentially serving as predictive biomarkers. (Lewis et al. Biomedicines 8(2):34 2020) reported that rostral anterior cingulate cortex thickness predicted emotional experiences under psilocybin, suggesting cortical morphometry as a marker of psychedelic...

Regional Specificity of the Cingulate Cortex Thickness Association with the Intensity of Psilocybin Experience: A Replication Study

Research Square September 25, 2025 David Greguš, Jaroslav Hlinka, Filip Tylš et al.

Abstract Rationale: Individual variability in psilocybin response is a major challenge for psychedelic-assisted therapy, with structural brain features potentially serving as predictive biomarkers. Lewis et al. (2020) reported that rostral anterior cingulate cortex thickness predicted emotional experiences under psilocybin, suggesting cortical morphometry as a marker of psychedelic...

Cross-Species Evidence for Psilocin-Induced Visual Distortions: Apparent Motion Is Perceived by Both Humans and Rats.

Biological Psychiatry Global Open Science September 1, 2025 Čestmír Vejmola, Klára Šíchová, Kateřina Syrová et al. 4 citations

Psychedelics, particularly psilocin, are increasingly being studied for their mind-altering effects and potential therapeutic applications in psychiatry. Visual hallucinations, especially the illusion of motion in static images, are a hallmark of their action. Despite growing interest, the underlying mechanisms remain poorly understood, as their systematic evaluation in both humans and animals...

The phenomenology of psilocybin's experience mediates subsequent persistent psychological effects independently of sex, previous experience, or setting.

Pharmacological reports : PR June 16, 2025 Tereza Klučková, Marek Nikolič, Filip Tylš et al. 4 citations

Recent studies intensively explore psilocybin's antidepressant potential, but variables like previous experience, repeated use, setting, and sex remain underexplored. This study examines acute and long-term effects of psilocybin in healthy individuals. A double-blind, placebo-controlled, cross-over study included 40 healthy participants (20 females, mean age 38). Each received two doses of...

Psilocybin—Mediated Attenuation of Gamma Band Auditory Steady-State Responses (ASSR) Is Driven by the Intensity of Cognitive and Emotional Domains of Psychedelic Experience

Journal of Personalized Medicine June 19, 2022 Vojtěch Viktorin, Inga Griškova-bulanova, Aleksandras Voicikas et al. 19 citations

Psilocybin is a classical serotoninergic psychedelic that induces cognitive disruptions similar to psychosis. Gamma activity is affected in psychosis and is tightly related to cognitive processing. The 40 Hz auditory steady-state responses (ASSR) are frequently used as indicators to test the ability to generate gamma activity. Based on previous literature, we studied the impact of psilocybin on...

The Effects of Daytime Psilocybin Administration on Sleep: Implications for Antidepressant Action

Frontiers in Pharmacology December 3, 2020 Daniela Dudysová, Karolína Janků, Michal Šmotek et al. 37 citations

Serotonergic agonist psilocybin is a psychedelic with antidepressant potential. Sleep may interact with psilocybin’s antidepressant properties like other antidepressant drugs via induction of neuroplasticity. The main aim of the study was to evaluate the effect of psilocybin on sleep architecture on the night after psilocybin administration. Regarding the potential antidepressant properties, we...

Psilocybin disrupts sensory and higher order cognitive processing but not pre-attentive cognitive processing—study on P300 and mismatch negativity in healthy volunteers

Psychopharmacology January 5, 2018 Anna Bravermanová, Michaela Viktorinová, Filip Tylš et al. 50 citations

RationaleDisruption of auditory event-related evoked potentials (ERPs) P300 and mismatch negativity (MMN), electrophysiological markers of attentive and pre-attentive cognitive processing, is repeatedly described in psychosis and schizophrenia. Similar findings were observed in a glutamatergic model of psychosis, but the role of serotonergic 5-HT2A receptors in information processing is less...

PM506. Psilocybin Clinical Trial: Acute Effects and its relationship to the brain activity as measured by quantitative EEG

The International Journal of Neuropsychopharmacology May 27, 2016 Filip Tylš, Michaela Viktorinová, Dominika Prokopcova et al. 10 citations

Objective: Schizophrenia patients have a higher prevalence of type 2 diabetes mellitus than the general population, and even first-episode, drug-naive (FEDN) patients with schizophrenia have shown a higher prevalence of impaired glucose tolerance (IGT) than the general population.We aimed to investigate the prevalence of abnormal glucose tolerance after glucose loading, and to examine the...