Suboptimal human multisensory cue combination

Abstract Information from different sensory modalities can interact, shaping what we think we have seen, heard, or otherwise perceived. Such interactions can enhance the precision of perceptual decisions, relative to those based on information from a single sensory modality. Several computational pr...

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Autores principales:	Derek H. Arnold, Kirstie Petrie, Cailem Murray, Alan Johnston
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c6e96bc883aa4dcca483f48993757a38
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id	oai:doaj.org-article:c6e96bc883aa4dcca483f48993757a38
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spelling	oai:doaj.org-article:c6e96bc883aa4dcca483f48993757a382021-12-02T15:09:16ZSuboptimal human multisensory cue combination10.1038/s41598-018-37888-72045-2322https://doaj.org/article/c6e96bc883aa4dcca483f48993757a382019-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-37888-7https://doaj.org/toc/2045-2322Abstract Information from different sensory modalities can interact, shaping what we think we have seen, heard, or otherwise perceived. Such interactions can enhance the precision of perceptual decisions, relative to those based on information from a single sensory modality. Several computational processes could account for such improvements. Slight improvements could arise if decisions are based on multiple independent sensory estimates, as opposed to just one. Still greater improvements could arise if initially independent estimates are summed to form a single integrated code. This hypothetical process has often been described as optimal when it results in bimodal performance consistent with a summation of unimodal estimates weighted in proportion to the precision of each initially independent sensory code. Here we examine cross-modal cue combination for audio-visual temporal rate and spatial location cues. While suggestive of a cross-modal encoding advantage, the degree of facilitation falls short of that predicted by a precision weighted summation process. These data accord with other published observations, and suggest that precision weighted combination is not a general property of human cross-modal perception.Derek H. ArnoldKirstie PetrieCailem MurrayAlan JohnstonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-11 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Derek H. Arnold Kirstie Petrie Cailem Murray Alan Johnston Suboptimal human multisensory cue combination
description	Abstract Information from different sensory modalities can interact, shaping what we think we have seen, heard, or otherwise perceived. Such interactions can enhance the precision of perceptual decisions, relative to those based on information from a single sensory modality. Several computational processes could account for such improvements. Slight improvements could arise if decisions are based on multiple independent sensory estimates, as opposed to just one. Still greater improvements could arise if initially independent estimates are summed to form a single integrated code. This hypothetical process has often been described as optimal when it results in bimodal performance consistent with a summation of unimodal estimates weighted in proportion to the precision of each initially independent sensory code. Here we examine cross-modal cue combination for audio-visual temporal rate and spatial location cues. While suggestive of a cross-modal encoding advantage, the degree of facilitation falls short of that predicted by a precision weighted summation process. These data accord with other published observations, and suggest that precision weighted combination is not a general property of human cross-modal perception.
format	article
author	Derek H. Arnold Kirstie Petrie Cailem Murray Alan Johnston
author_facet	Derek H. Arnold Kirstie Petrie Cailem Murray Alan Johnston
author_sort	Derek H. Arnold
title	Suboptimal human multisensory cue combination
title_short	Suboptimal human multisensory cue combination
title_full	Suboptimal human multisensory cue combination
title_fullStr	Suboptimal human multisensory cue combination
title_full_unstemmed	Suboptimal human multisensory cue combination
title_sort	suboptimal human multisensory cue combination
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/c6e96bc883aa4dcca483f48993757a38
work_keys_str_mv	AT derekharnold suboptimalhumanmultisensorycuecombination AT kirstiepetrie suboptimalhumanmultisensorycuecombination AT cailemmurray suboptimalhumanmultisensorycuecombination AT alanjohnston suboptimalhumanmultisensorycuecombination
_version_	1718387902799413248

Suboptimal human multisensory cue combination

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