Comparing the influence of stimulus size and contrast on the perception of moving gratings and random dot patterns-A registered report protocol.

Modern accounts of visual motion processing in the primate brain emphasize a hierarchy of different regions within the dorsal visual pathway, especially primary visual cortex (V1) and the middle temporal area (MT). However, recent studies have called the idea of a processing pipeline with fixed cont...

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Autores principales:	Benedict Wild, Stefan Treue
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fdf47ac4e41342b09a4d1b8b666f0195
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spelling	oai:doaj.org-article:fdf47ac4e41342b09a4d1b8b666f01952021-12-02T20:15:47ZComparing the influence of stimulus size and contrast on the perception of moving gratings and random dot patterns-A registered report protocol.1932-620310.1371/journal.pone.0253067https://doaj.org/article/fdf47ac4e41342b09a4d1b8b666f01952021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253067https://doaj.org/toc/1932-6203Modern accounts of visual motion processing in the primate brain emphasize a hierarchy of different regions within the dorsal visual pathway, especially primary visual cortex (V1) and the middle temporal area (MT). However, recent studies have called the idea of a processing pipeline with fixed contributions to motion perception from each area into doubt. Instead, the role that each area plays appears to depend on properties of the stimulus as well as perceptual history. We propose to test this hypothesis in human subjects by comparing motion perception of two commonly used stimulus types: drifting sinusoidal gratings (DSGs) and random dot patterns (RDPs). To avoid potential biases in our approach we are pre-registering our study. We will compare the effects of size and contrast levels on the perception of the direction of motion for DSGs and RDPs. In addition, based on intriguing results in a pilot study, we will also explore the effects of a post-stimulus mask. Our approach will offer valuable insights into how motion is processed by the visual system and guide further behavioral and neurophysiological research.Benedict WildStefan TreuePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 6, p e0253067 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Benedict Wild Stefan Treue Comparing the influence of stimulus size and contrast on the perception of moving gratings and random dot patterns-A registered report protocol.
description	Modern accounts of visual motion processing in the primate brain emphasize a hierarchy of different regions within the dorsal visual pathway, especially primary visual cortex (V1) and the middle temporal area (MT). However, recent studies have called the idea of a processing pipeline with fixed contributions to motion perception from each area into doubt. Instead, the role that each area plays appears to depend on properties of the stimulus as well as perceptual history. We propose to test this hypothesis in human subjects by comparing motion perception of two commonly used stimulus types: drifting sinusoidal gratings (DSGs) and random dot patterns (RDPs). To avoid potential biases in our approach we are pre-registering our study. We will compare the effects of size and contrast levels on the perception of the direction of motion for DSGs and RDPs. In addition, based on intriguing results in a pilot study, we will also explore the effects of a post-stimulus mask. Our approach will offer valuable insights into how motion is processed by the visual system and guide further behavioral and neurophysiological research.
format	article
author	Benedict Wild Stefan Treue
author_facet	Benedict Wild Stefan Treue
author_sort	Benedict Wild
title	Comparing the influence of stimulus size and contrast on the perception of moving gratings and random dot patterns-A registered report protocol.
title_short	Comparing the influence of stimulus size and contrast on the perception of moving gratings and random dot patterns-A registered report protocol.
title_full	Comparing the influence of stimulus size and contrast on the perception of moving gratings and random dot patterns-A registered report protocol.
title_fullStr	Comparing the influence of stimulus size and contrast on the perception of moving gratings and random dot patterns-A registered report protocol.
title_full_unstemmed	Comparing the influence of stimulus size and contrast on the perception of moving gratings and random dot patterns-A registered report protocol.
title_sort	comparing the influence of stimulus size and contrast on the perception of moving gratings and random dot patterns-a registered report protocol.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/fdf47ac4e41342b09a4d1b8b666f0195
work_keys_str_mv	AT benedictwild comparingtheinfluenceofstimulussizeandcontrastontheperceptionofmovinggratingsandrandomdotpatternsaregisteredreportprotocol AT stefantreue comparingtheinfluenceofstimulussizeandcontrastontheperceptionofmovinggratingsandrandomdotpatternsaregisteredreportprotocol
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Comparing the influence of stimulus size and contrast on the perception of moving gratings and random dot patterns-A registered report protocol.

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