Beyond imagination: hypnotic visual hallucination induces greater lateralised brain activity than visual mental imagery

Lanfranco, Renzo C.; Rivera-Rei, Álvaro; Huepe, David; Ibáñez, Agustín; Canales-Johnson, Andrés F.

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dc.contributor.author	Lanfranco, Renzo C.
dc.contributor.author	Rivera-Rei, Álvaro
dc.contributor.author	Huepe, David
dc.contributor.author	Ibáñez, Agustín
dc.contributor.author	Canales-Johnson, Andrés F.
dc.date.accessioned	2022-07-06T15:22:48Z
dc.date.available	2022-07-06T15:22:48Z
dc.date.issued	2021
dc.identifier.uri	http://repositorio.ucm.cl/handle/ucm/3858
dc.description.abstract	Hypnotic suggestions can produce a broad range of perceptual experiences, including hallucinations. Visual hypnotic hallucinations differ in many ways from regular mental images. For example, they are usually experienced as automatic, vivid, and real images, typically compromising the sense of reality. While both hypnotic hallucination and mental imagery are believed to mainly rely on the activation of the visual cortex via top-down mechanisms, it is unknown how they differ in the neural processes they engage. Here we used an adaptation paradigm to test and compare top-down processing between hypnotic hallucination, mental imagery, and visual perception in very highly hypnotisable individuals whose ability to hallucinate was assessed. By measuring the N170/VPP event-related complex and using multivariate decoding analysis, we found that hypnotic hallucination of faces involves greater top-down activation of sensory processing through lateralised neural mechanisms in the right hemisphere compared to mental imagery. Our findings suggest that the neural signatures that distinguish hypnotically hallucinated faces from imagined faces lie in the right brain hemisphere.	es_CL
dc.language.iso	en	es_CL
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 Chile	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/cl/	*
dc.source	NeuroImage, 239	es_CL
dc.subject	Hypnosis	es_CL
dc.subject	Hypnotic suggestion	es_CL
dc.subject	Hallucination	es_CL
dc.subject	Mental imagery	es_CL
dc.subject	Visual perception	es_CL
dc.subject	Face perception	es_CL
dc.title	Beyond imagination: hypnotic visual hallucination induces greater lateralised brain activity than visual mental imagery	es_CL
dc.type	Article	es_CL
dc.ucm.indexacion	Scopus	es_CL
dc.ucm.indexacion	Isi	es_CL
dc.ucm.uri	www.sciencedirect.com/science/article/pii/S1053811921005589?via%3Dihub	es_CL
dc.ucm.doi	doi.org/10.1016/j.neuroimage.2021.118282	es_CL