Psychology Archives
September 30, 2026
Hüseyin Beyköylü, Merijn Mestdagh, Fred Hasselman et al.
Derived results from an observational study of fourteen adults attending legal psilocybin truffle retreats in the Netherlands. Includes the per-participant time series of the collective variable, dynamic complexity and detected levels; the per-participant summary table; item diagnostics and collective variable validation; the timing of destabilization; two sensitivity analyses; the full...
Philosophical Psychology
December 16, 2025
Hüseyin Beyköylü, John Vervaeke, Daniel Meling
ABSTRACT Self-transcendent experiences (STEs) represent profound shifts in cognition and consciousness, possessing significant transformative potential. With growing scientific interest in these phenomena, we propose the cognitive continuum as a unifying framework. Grounded in enactive cognitive science and complex dynamic systems perspectives, this approach takes the embodied person, embedded...
Philosophical Psychology
November 30, 2025
Julian Kiverstein, Hüseyin Beyköylü, Michiel van Elk
3 citations
Psychedelic research has shown that the effects of serotonergic substances, such as psilocybin and LSD, are strongly influenced by the interaction of substance, set, and setting. Mystical-type experiences, often induced by psychedelics, are not solely driven by pharmacological mechanisms but emerge from a dynamic interplay between the psychological state (set), external environment (setting),...
September 25, 2025
Hüseyin Beyköylü, John Vervaeke, Daniel Meling
1 citation
preprint
The discipline of epistemology seeks to delineate the diverse forms of knowledge that inform our lives, from the concrete, embodied experiences that shape our everyday perceptions to the abstract, theoretical constructs that drive scientific inquiry. Cognitive science uniquely extends this project by exploring the human and non-human minds that afford knowing and understanding. Building on this...
Hüseyin Beyköylü, Josi Marschall, Elio Sjak-Shie et al.
preprint
Virtual reality psychedelic experiences (VRPEs) may offer accessible alternatives to substance-induced psychedelic experiences, but their phenomenology and how set and setting factors shape the experience remain underexplored. We conducted a study in a naturalistic festival setting where participants (N = 210) engaged with a 7-minute VRPE while continuous intensity ratings and physiological...