Adaptive Gaze Strategies to Reduce Environmental Uncertainty During a Sequential Visuomotor Behaviour

Abstract People must decide where, when, and for how long to allocate gaze to perform different motor behaviours. However, the factors guiding gaze during these ongoing, natural behaviours are poorly understood. Gaze shifts help acquire information, suggesting that people should direct gaze to locat...

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Autores principales:	F. Javier Domínguez-Zamora, Shaila M. Gunn, Daniel S. Marigold
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Gaze Time Target Uncertainty Gaze Shifts Environmental Diversity Experiment High Statistical Uncertainty Medicine R Science Q
Acceso en línea:	https://doaj.org/article/814266faac73438e8a6e0d045569ab2a
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spelling	oai:doaj.org-article:814266faac73438e8a6e0d045569ab2a2021-12-02T15:08:27ZAdaptive Gaze Strategies to Reduce Environmental Uncertainty During a Sequential Visuomotor Behaviour10.1038/s41598-018-32504-02045-2322https://doaj.org/article/814266faac73438e8a6e0d045569ab2a2018-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-32504-0https://doaj.org/toc/2045-2322Abstract People must decide where, when, and for how long to allocate gaze to perform different motor behaviours. However, the factors guiding gaze during these ongoing, natural behaviours are poorly understood. Gaze shifts help acquire information, suggesting that people should direct gaze to locations where environmental details most relevant to the task are uncertain. To explore this, human subjects stepped on a series of targets as they walked. We used different levels of target uncertainty, and through instruction, altered the importance of (or subjective value assigned to) foot-placement accuracy. Gaze time on targets increased with greater target uncertainty when precise foot placement was more important, and these longer gaze times associated with reduced foot-placement error. Gaze times as well as the gaze shifts to and from targets relative to stepping differed depending on the target’s position in the sequence and uncertainty level. Overall, we show that gaze is allocated to reduce uncertainty about target locations, and this depends on the value of this information gain for successful task performance. Furthermore, we show that the spatial-temporal pattern of gaze to resolve uncertainty changes with the evolution of the motor behaviour, indicating a flexible strategy to plan and control movement.F. Javier Domínguez-ZamoraShaila M. GunnDaniel S. MarigoldNature PortfolioarticleGaze TimeTarget UncertaintyGaze ShiftsEnvironmental Diversity ExperimentHigh Statistical UncertaintyMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-13 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Gaze Time Target Uncertainty Gaze Shifts Environmental Diversity Experiment High Statistical Uncertainty Medicine R Science Q
spellingShingle	Gaze Time Target Uncertainty Gaze Shifts Environmental Diversity Experiment High Statistical Uncertainty Medicine R Science Q F. Javier Domínguez-Zamora Shaila M. Gunn Daniel S. Marigold Adaptive Gaze Strategies to Reduce Environmental Uncertainty During a Sequential Visuomotor Behaviour
description	Abstract People must decide where, when, and for how long to allocate gaze to perform different motor behaviours. However, the factors guiding gaze during these ongoing, natural behaviours are poorly understood. Gaze shifts help acquire information, suggesting that people should direct gaze to locations where environmental details most relevant to the task are uncertain. To explore this, human subjects stepped on a series of targets as they walked. We used different levels of target uncertainty, and through instruction, altered the importance of (or subjective value assigned to) foot-placement accuracy. Gaze time on targets increased with greater target uncertainty when precise foot placement was more important, and these longer gaze times associated with reduced foot-placement error. Gaze times as well as the gaze shifts to and from targets relative to stepping differed depending on the target’s position in the sequence and uncertainty level. Overall, we show that gaze is allocated to reduce uncertainty about target locations, and this depends on the value of this information gain for successful task performance. Furthermore, we show that the spatial-temporal pattern of gaze to resolve uncertainty changes with the evolution of the motor behaviour, indicating a flexible strategy to plan and control movement.
format	article
author	F. Javier Domínguez-Zamora Shaila M. Gunn Daniel S. Marigold
author_facet	F. Javier Domínguez-Zamora Shaila M. Gunn Daniel S. Marigold
author_sort	F. Javier Domínguez-Zamora
title	Adaptive Gaze Strategies to Reduce Environmental Uncertainty During a Sequential Visuomotor Behaviour
title_short	Adaptive Gaze Strategies to Reduce Environmental Uncertainty During a Sequential Visuomotor Behaviour
title_full	Adaptive Gaze Strategies to Reduce Environmental Uncertainty During a Sequential Visuomotor Behaviour
title_fullStr	Adaptive Gaze Strategies to Reduce Environmental Uncertainty During a Sequential Visuomotor Behaviour
title_full_unstemmed	Adaptive Gaze Strategies to Reduce Environmental Uncertainty During a Sequential Visuomotor Behaviour
title_sort	adaptive gaze strategies to reduce environmental uncertainty during a sequential visuomotor behaviour
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/814266faac73438e8a6e0d045569ab2a
work_keys_str_mv	AT fjavierdominguezzamora adaptivegazestrategiestoreduceenvironmentaluncertaintyduringasequentialvisuomotorbehaviour AT shailamgunn adaptivegazestrategiestoreduceenvironmentaluncertaintyduringasequentialvisuomotorbehaviour AT danielsmarigold adaptivegazestrategiestoreduceenvironmentaluncertaintyduringasequentialvisuomotorbehaviour
_version_	1718388130584723456

Adaptive Gaze Strategies to Reduce Environmental Uncertainty During a Sequential Visuomotor Behaviour

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