Switch from ambient to focal processing mode explains the dynamics of free viewing eye movements

Abstract Previous studies have reported that humans employ ambient and focal modes of visual exploration while they freely view natural scenes. These two modes have been characterized based on eye movement parameters such as saccade amplitude and fixation duration, but not by any visual features of...

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Autores principales:	Junji Ito, Yukako Yamane, Mika Suzuki, Pedro Maldonado, Ichiro Fujita, Hiroshi Tamura, Sonja Grün
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b8251e8d7eff40e8b0e2eba514db7c04
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spelling	oai:doaj.org-article:b8251e8d7eff40e8b0e2eba514db7c042021-12-02T15:06:14ZSwitch from ambient to focal processing mode explains the dynamics of free viewing eye movements10.1038/s41598-017-01076-w2045-2322https://doaj.org/article/b8251e8d7eff40e8b0e2eba514db7c042017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01076-whttps://doaj.org/toc/2045-2322Abstract Previous studies have reported that humans employ ambient and focal modes of visual exploration while they freely view natural scenes. These two modes have been characterized based on eye movement parameters such as saccade amplitude and fixation duration, but not by any visual features of the viewed scenes. Here we propose a new characterization of eye movements during free viewing based on how eyes are moved from and to objects in a visual scene. We applied this characterization to data obtained from freely-viewing macaque monkeys. We show that the analysis based on this characterization gives a direct indication of a behavioral shift from ambient to focal processing mode along the course of free viewing exploration. We further propose a stochastic model of saccade sequence generation incorporating a switch between the two processing modes, which quantitatively reproduces the behavioral features observed in the data.Junji ItoYukako YamaneMika SuzukiPedro MaldonadoIchiro FujitaHiroshi TamuraSonja GrünNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Junji Ito Yukako Yamane Mika Suzuki Pedro Maldonado Ichiro Fujita Hiroshi Tamura Sonja Grün Switch from ambient to focal processing mode explains the dynamics of free viewing eye movements
description	Abstract Previous studies have reported that humans employ ambient and focal modes of visual exploration while they freely view natural scenes. These two modes have been characterized based on eye movement parameters such as saccade amplitude and fixation duration, but not by any visual features of the viewed scenes. Here we propose a new characterization of eye movements during free viewing based on how eyes are moved from and to objects in a visual scene. We applied this characterization to data obtained from freely-viewing macaque monkeys. We show that the analysis based on this characterization gives a direct indication of a behavioral shift from ambient to focal processing mode along the course of free viewing exploration. We further propose a stochastic model of saccade sequence generation incorporating a switch between the two processing modes, which quantitatively reproduces the behavioral features observed in the data.
format	article
author	Junji Ito Yukako Yamane Mika Suzuki Pedro Maldonado Ichiro Fujita Hiroshi Tamura Sonja Grün
author_facet	Junji Ito Yukako Yamane Mika Suzuki Pedro Maldonado Ichiro Fujita Hiroshi Tamura Sonja Grün
author_sort	Junji Ito
title	Switch from ambient to focal processing mode explains the dynamics of free viewing eye movements
title_short	Switch from ambient to focal processing mode explains the dynamics of free viewing eye movements
title_full	Switch from ambient to focal processing mode explains the dynamics of free viewing eye movements
title_fullStr	Switch from ambient to focal processing mode explains the dynamics of free viewing eye movements
title_full_unstemmed	Switch from ambient to focal processing mode explains the dynamics of free viewing eye movements
title_sort	switch from ambient to focal processing mode explains the dynamics of free viewing eye movements
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/b8251e8d7eff40e8b0e2eba514db7c04
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Switch from ambient to focal processing mode explains the dynamics of free viewing eye movements

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