Cargando…

Properties of smooth pursuit and visual motion reaction time to second-order motion stimuli

A large number of psychophysical and neurophysiological studies have demonstrated that smooth pursuit eye movements are tightly related to visual motion perception. This could be due to the fact that visual motion sensitive cortical areas such as meddle temporal (MT), medial superior temporal (MST)...

Descripción completa

Detalles Bibliográficos
Autores principales: Miyamoto, Takeshi, Miura, Kenichiro, Kizuka, Tomohiro, Ono, Seiji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7735583/
https://www.ncbi.nlm.nih.gov/pubmed/33315877
http://dx.doi.org/10.1371/journal.pone.0243430
_version_ 1783622661361893376
author Miyamoto, Takeshi
Miura, Kenichiro
Kizuka, Tomohiro
Ono, Seiji
author_facet Miyamoto, Takeshi
Miura, Kenichiro
Kizuka, Tomohiro
Ono, Seiji
author_sort Miyamoto, Takeshi
collection PubMed
description A large number of psychophysical and neurophysiological studies have demonstrated that smooth pursuit eye movements are tightly related to visual motion perception. This could be due to the fact that visual motion sensitive cortical areas such as meddle temporal (MT), medial superior temporal (MST) areas are involved in motion perception as well as pursuit initiation. Although the directional-discrimination and perceived target velocity tasks are used to evaluate visual motion perception, it is still uncertain whether the speed of visual motion perception, which is determined by visuomotor reaction time (RT) to a small target, is related to pursuit initiation. Therefore, we attempted to determine the relationship between pursuit latency/acceleration and the visual motion RT which was measured to the visual motion stimuli that moved leftward or rightward. The participants were instructed to fixate on a stationary target and press one of the buttons corresponding to the direction of target motion as soon as possible once the target starts to move. We applied five different visual motion stimuli including first- and second-order motion for smooth pursuit and visual motion RT tasks. It is well known that second-order motion induces lower retinal image motion, which elicits weaker responses in MT and MST compared to first-order motion stimuli. Our results showed that pursuit initiation including latency and initial eye acceleration were suppressed by second-order motion. In addition, second-order motion caused a delay in visual motion RT. The better performances in both pursuit initiation and visual motion RT were observed for first-order motion, whereas second-order (theta motion) induced remarkable deficits in both variables. Furthermore, significant Pearson’s correlation and within-subjects correlation coefficients were obtained between visual motion RT and pursuit latency/acceleration. Our findings support the suggestion that there is a common neuronal pathway involved in both pursuit initiation and the speed of visual motion perception.
format Online
Article
Text
id pubmed-7735583
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-77355832020-12-22 Properties of smooth pursuit and visual motion reaction time to second-order motion stimuli Miyamoto, Takeshi Miura, Kenichiro Kizuka, Tomohiro Ono, Seiji PLoS One Research Article A large number of psychophysical and neurophysiological studies have demonstrated that smooth pursuit eye movements are tightly related to visual motion perception. This could be due to the fact that visual motion sensitive cortical areas such as meddle temporal (MT), medial superior temporal (MST) areas are involved in motion perception as well as pursuit initiation. Although the directional-discrimination and perceived target velocity tasks are used to evaluate visual motion perception, it is still uncertain whether the speed of visual motion perception, which is determined by visuomotor reaction time (RT) to a small target, is related to pursuit initiation. Therefore, we attempted to determine the relationship between pursuit latency/acceleration and the visual motion RT which was measured to the visual motion stimuli that moved leftward or rightward. The participants were instructed to fixate on a stationary target and press one of the buttons corresponding to the direction of target motion as soon as possible once the target starts to move. We applied five different visual motion stimuli including first- and second-order motion for smooth pursuit and visual motion RT tasks. It is well known that second-order motion induces lower retinal image motion, which elicits weaker responses in MT and MST compared to first-order motion stimuli. Our results showed that pursuit initiation including latency and initial eye acceleration were suppressed by second-order motion. In addition, second-order motion caused a delay in visual motion RT. The better performances in both pursuit initiation and visual motion RT were observed for first-order motion, whereas second-order (theta motion) induced remarkable deficits in both variables. Furthermore, significant Pearson’s correlation and within-subjects correlation coefficients were obtained between visual motion RT and pursuit latency/acceleration. Our findings support the suggestion that there is a common neuronal pathway involved in both pursuit initiation and the speed of visual motion perception. Public Library of Science 2020-12-14 /pmc/articles/PMC7735583/ /pubmed/33315877 http://dx.doi.org/10.1371/journal.pone.0243430 Text en © 2020 Miyamoto et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Miyamoto, Takeshi
Miura, Kenichiro
Kizuka, Tomohiro
Ono, Seiji
Properties of smooth pursuit and visual motion reaction time to second-order motion stimuli
title Properties of smooth pursuit and visual motion reaction time to second-order motion stimuli
title_full Properties of smooth pursuit and visual motion reaction time to second-order motion stimuli
title_fullStr Properties of smooth pursuit and visual motion reaction time to second-order motion stimuli
title_full_unstemmed Properties of smooth pursuit and visual motion reaction time to second-order motion stimuli
title_short Properties of smooth pursuit and visual motion reaction time to second-order motion stimuli
title_sort properties of smooth pursuit and visual motion reaction time to second-order motion stimuli
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7735583/
https://www.ncbi.nlm.nih.gov/pubmed/33315877
http://dx.doi.org/10.1371/journal.pone.0243430
work_keys_str_mv AT miyamototakeshi propertiesofsmoothpursuitandvisualmotionreactiontimetosecondordermotionstimuli
AT miurakenichiro propertiesofsmoothpursuitandvisualmotionreactiontimetosecondordermotionstimuli
AT kizukatomohiro propertiesofsmoothpursuitandvisualmotionreactiontimetosecondordermotionstimuli
AT onoseiji propertiesofsmoothpursuitandvisualmotionreactiontimetosecondordermotionstimuli