Multisensory Perception of Contradictory Information in an Environment of Varying Reliability: Evidence for Conscious Perception and Optimal Causal Inference

Abstract Two psychophysical experiments examined multisensory integration of visual-auditory (Experiment 1) and visual-tactile-auditory (Experiment 2) signals. Participants judged the location of these multimodal signals relative to a standard presented at the median plane of the body. A cue conflic...

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Autores principales:	Mohammad-Ali Nikouei Mahani, Saber Sheybani, Karin Maria Bausenhart, Rolf Ulrich, Majid Nili Ahmadabadi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fb24695014ae4dc9bd2a024919a4470c
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spelling	oai:doaj.org-article:fb24695014ae4dc9bd2a024919a4470c2021-12-02T16:07:47ZMultisensory Perception of Contradictory Information in an Environment of Varying Reliability: Evidence for Conscious Perception and Optimal Causal Inference10.1038/s41598-017-03521-22045-2322https://doaj.org/article/fb24695014ae4dc9bd2a024919a4470c2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03521-2https://doaj.org/toc/2045-2322Abstract Two psychophysical experiments examined multisensory integration of visual-auditory (Experiment 1) and visual-tactile-auditory (Experiment 2) signals. Participants judged the location of these multimodal signals relative to a standard presented at the median plane of the body. A cue conflict was induced by presenting the visual signals with a constant spatial discrepancy to the other modalities. Extending previous studies, the reliability of certain modalities (visual in Experiment 1, visual and tactile in Experiment 2) was varied from trial to trial by presenting signals with either strong or weak location information (e.g., a relatively dense or dispersed dot cloud as visual stimulus). We investigated how participants would adapt to the cue conflict from the contradictory information under these varying reliability conditions and whether participants had insight to their performance. During the course of both experiments, participants switched from an integration strategy to a selection strategy in Experiment 1 and to a calibration strategy in Experiment 2. Simulations of various multisensory perception strategies proposed that optimal causal inference in a varying reliability environment not only depends on the amount of multimodal discrepancy, but also on the relative reliability of stimuli across the reliability conditions.Mohammad-Ali Nikouei MahaniSaber SheybaniKarin Maria BausenhartRolf UlrichMajid Nili AhmadabadiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-15 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mohammad-Ali Nikouei Mahani Saber Sheybani Karin Maria Bausenhart Rolf Ulrich Majid Nili Ahmadabadi Multisensory Perception of Contradictory Information in an Environment of Varying Reliability: Evidence for Conscious Perception and Optimal Causal Inference
description	Abstract Two psychophysical experiments examined multisensory integration of visual-auditory (Experiment 1) and visual-tactile-auditory (Experiment 2) signals. Participants judged the location of these multimodal signals relative to a standard presented at the median plane of the body. A cue conflict was induced by presenting the visual signals with a constant spatial discrepancy to the other modalities. Extending previous studies, the reliability of certain modalities (visual in Experiment 1, visual and tactile in Experiment 2) was varied from trial to trial by presenting signals with either strong or weak location information (e.g., a relatively dense or dispersed dot cloud as visual stimulus). We investigated how participants would adapt to the cue conflict from the contradictory information under these varying reliability conditions and whether participants had insight to their performance. During the course of both experiments, participants switched from an integration strategy to a selection strategy in Experiment 1 and to a calibration strategy in Experiment 2. Simulations of various multisensory perception strategies proposed that optimal causal inference in a varying reliability environment not only depends on the amount of multimodal discrepancy, but also on the relative reliability of stimuli across the reliability conditions.
format	article
author	Mohammad-Ali Nikouei Mahani Saber Sheybani Karin Maria Bausenhart Rolf Ulrich Majid Nili Ahmadabadi
author_facet	Mohammad-Ali Nikouei Mahani Saber Sheybani Karin Maria Bausenhart Rolf Ulrich Majid Nili Ahmadabadi
author_sort	Mohammad-Ali Nikouei Mahani
title	Multisensory Perception of Contradictory Information in an Environment of Varying Reliability: Evidence for Conscious Perception and Optimal Causal Inference
title_short	Multisensory Perception of Contradictory Information in an Environment of Varying Reliability: Evidence for Conscious Perception and Optimal Causal Inference
title_full	Multisensory Perception of Contradictory Information in an Environment of Varying Reliability: Evidence for Conscious Perception and Optimal Causal Inference
title_fullStr	Multisensory Perception of Contradictory Information in an Environment of Varying Reliability: Evidence for Conscious Perception and Optimal Causal Inference
title_full_unstemmed	Multisensory Perception of Contradictory Information in an Environment of Varying Reliability: Evidence for Conscious Perception and Optimal Causal Inference
title_sort	multisensory perception of contradictory information in an environment of varying reliability: evidence for conscious perception and optimal causal inference
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/fb24695014ae4dc9bd2a024919a4470c
work_keys_str_mv	AT mohammadalinikoueimahani multisensoryperceptionofcontradictoryinformationinanenvironmentofvaryingreliabilityevidenceforconsciousperceptionandoptimalcausalinference AT sabersheybani multisensoryperceptionofcontradictoryinformationinanenvironmentofvaryingreliabilityevidenceforconsciousperceptionandoptimalcausalinference AT karinmariabausenhart multisensoryperceptionofcontradictoryinformationinanenvironmentofvaryingreliabilityevidenceforconsciousperceptionandoptimalcausalinference AT rolfulrich multisensoryperceptionofcontradictoryinformationinanenvironmentofvaryingreliabilityevidenceforconsciousperceptionandoptimalcausalinference AT majidniliahmadabadi multisensoryperceptionofcontradictoryinformationinanenvironmentofvaryingreliabilityevidenceforconsciousperceptionandoptimalcausalinference
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Multisensory Perception of Contradictory Information in an Environment of Varying Reliability: Evidence for Conscious Perception and Optimal Causal Inference

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