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Paul F. Sowman

3 papers in the library · publishing 2025

Papers

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Exploring flicker light mechanisms: No evidence that MEG signal diversity relates to subjective experience

PsyArXiv October 23, 2025 James Thurbon, Paul F. Sowman, Vince Polito preprint

Stroboscopic flashing light with white noise can induce a mild altered state of consciousness (ASC), with some effects similar to sensory deprivation and moderate doses of psychedelic substances. However, effective clinical utilisation of this white noise flicker light (WNFL) requires understanding the underlying mechanisms. Here, neural correlates and predictors of WNFL experience are explored...

The neverending trip: Associations between Hallucinogen Persisting Perception Disorder (HPPD) and non-visual perceptual disturbances

Journal of Psychedelic Studies September 8, 2025 Anneliese McConnell, Wei He, Harry McConnell et al.

Abstract Objective Hallucinogen Persistent Perception Disorder (HPPD) is a condition where the effects of hallucinogenic drugs reoccur long after the acute effects have stopped. No established risk factors or mechanisms for HPPD have been identified. However, reports have suggested a risk phenotype for HPPD due to associations with other perceptual disturbances. With recent increases in...

Associations between Hallucinogen Persisting Perception Disorder (HPPD) and non-visual perceptual disturbances

Anneliese McConnell, Wei He, Harry McConnell et al. preprint

Background:Hallucinogen Persistent Perception Disorder (HPPD) is a condition where the effects of hallucinogenic drugs reoccur long after the acute effects have stopped. No established risk factors or mechanisms for HPPD have been identified. However, reports have suggested a risk phenotype for HPPD due to associations with other perceptual disturbances. With the recent increase in therapeutic...