Altered states phenomena induced by visual flicker light stimulation.

Flicker light stimulation can induce short-term alterations in consciousness including hallucinatory color perception and geometric patterns. In the study at hand, the subjective experiences during 3 Hz and 10 Hz stroboscopic light stimulation of the closed eyes were assessed. In a within-subjects d...

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Autores principales:	Marie Therese Bartossek, Johanna Kemmerer, Timo Torsten Schmidt
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a259f5e8dc23408bb7257ea4cbfac0b3
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spelling	oai:doaj.org-article:a259f5e8dc23408bb7257ea4cbfac0b32021-12-02T20:09:47ZAltered states phenomena induced by visual flicker light stimulation.1932-620310.1371/journal.pone.0253779https://doaj.org/article/a259f5e8dc23408bb7257ea4cbfac0b32021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253779https://doaj.org/toc/1932-6203Flicker light stimulation can induce short-term alterations in consciousness including hallucinatory color perception and geometric patterns. In the study at hand, the subjective experiences during 3 Hz and 10 Hz stroboscopic light stimulation of the closed eyes were assessed. In a within-subjects design (N = 24), we applied the Positive and Negative Affect Schedule (mood state), time perception ratings, the Altered State of Consciousness Rating Scale, and the Phenomenology of Consciousness Inventory. Furthermore, we tested for effects of personality traits (NEO Five-Factor Inventory-2 and Tellegen Absorption Scale) on subjective experiences. Such systematic quantification improves replicability, facilitates comparisons between pharmacological and non-pharmacological techniques to induce altered states of consciousness, and is the prerequisite to study their underlying neuronal mechanisms. The resulting data showed that flicker light stimulation-induced states were characterized by vivid visual hallucinations of simple types, with effects strongest in the 10 Hz condition. Additionally, participants' personality trait of Absorption scores highly correlated with the experienced alterations in consciousness. Our data demonstrate that flicker light stimulation is capable of inducing visual effects with an intensity rated to be similar in strength to effects induced by psychedelic substances and thereby support the investigation of potentially shared underlying neuronal mechanisms.Marie Therese BartossekJohanna KemmererTimo Torsten SchmidtPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0253779 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Marie Therese Bartossek Johanna Kemmerer Timo Torsten Schmidt Altered states phenomena induced by visual flicker light stimulation.
description	Flicker light stimulation can induce short-term alterations in consciousness including hallucinatory color perception and geometric patterns. In the study at hand, the subjective experiences during 3 Hz and 10 Hz stroboscopic light stimulation of the closed eyes were assessed. In a within-subjects design (N = 24), we applied the Positive and Negative Affect Schedule (mood state), time perception ratings, the Altered State of Consciousness Rating Scale, and the Phenomenology of Consciousness Inventory. Furthermore, we tested for effects of personality traits (NEO Five-Factor Inventory-2 and Tellegen Absorption Scale) on subjective experiences. Such systematic quantification improves replicability, facilitates comparisons between pharmacological and non-pharmacological techniques to induce altered states of consciousness, and is the prerequisite to study their underlying neuronal mechanisms. The resulting data showed that flicker light stimulation-induced states were characterized by vivid visual hallucinations of simple types, with effects strongest in the 10 Hz condition. Additionally, participants' personality trait of Absorption scores highly correlated with the experienced alterations in consciousness. Our data demonstrate that flicker light stimulation is capable of inducing visual effects with an intensity rated to be similar in strength to effects induced by psychedelic substances and thereby support the investigation of potentially shared underlying neuronal mechanisms.
format	article
author	Marie Therese Bartossek Johanna Kemmerer Timo Torsten Schmidt
author_facet	Marie Therese Bartossek Johanna Kemmerer Timo Torsten Schmidt
author_sort	Marie Therese Bartossek
title	Altered states phenomena induced by visual flicker light stimulation.
title_short	Altered states phenomena induced by visual flicker light stimulation.
title_full	Altered states phenomena induced by visual flicker light stimulation.
title_fullStr	Altered states phenomena induced by visual flicker light stimulation.
title_full_unstemmed	Altered states phenomena induced by visual flicker light stimulation.
title_sort	altered states phenomena induced by visual flicker light stimulation.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/a259f5e8dc23408bb7257ea4cbfac0b3
work_keys_str_mv	AT marietheresebartossek alteredstatesphenomenainducedbyvisualflickerlightstimulation AT johannakemmerer alteredstatesphenomenainducedbyvisualflickerlightstimulation AT timotorstenschmidt alteredstatesphenomenainducedbyvisualflickerlightstimulation
_version_	1718375082006413312

Altered states phenomena induced by visual flicker light stimulation.

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