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Effects of Temporal Features and Order on the Apparent duration of a Visual Stimulus

The apparent duration of a visual stimulus has been shown to be influenced by its speed. For low speeds, apparent duration increases linearly with stimulus speed. This effect has been ascribed to the number of changes that occur within a visual interval. Accordingly, a higher number of changes shoul...

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Detalles Bibliográficos
Autores principales: Bruno, Aurelio, Ayhan, Inci, Johnston, Alan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Research Foundation 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3309524/
https://www.ncbi.nlm.nih.gov/pubmed/22461778
http://dx.doi.org/10.3389/fpsyg.2012.00090
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author Bruno, Aurelio
Ayhan, Inci
Johnston, Alan
author_facet Bruno, Aurelio
Ayhan, Inci
Johnston, Alan
author_sort Bruno, Aurelio
collection PubMed
description The apparent duration of a visual stimulus has been shown to be influenced by its speed. For low speeds, apparent duration increases linearly with stimulus speed. This effect has been ascribed to the number of changes that occur within a visual interval. Accordingly, a higher number of changes should produce an increase in apparent duration. In order to test this prediction, we asked subjects to compare the relative duration of a 10-Hz drifting comparison stimulus with a standard stimulus that contained a different number of changes in different conditions. The standard could be static, drifting at 10 Hz, or mixed (a combination of variable duration static and drifting intervals). In this last condition the number of changes was intermediate between the static and the continuously drifting stimulus. For all standard durations, the mixed stimulus looked significantly compressed (∼20% reduction) relative to the drifting stimulus. However, no difference emerged between the static (that contained no changes) and the mixed stimuli (which contained an intermediate number of changes). We also observed that when the standard was displayed first, it appeared compressed relative to when it was displayed second with a magnitude that depended on standard duration. These results are at odds with a model of time perception that simply reflects the number of temporal features within an interval in determining the perceived passing of time.
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spelling pubmed-33095242012-03-29 Effects of Temporal Features and Order on the Apparent duration of a Visual Stimulus Bruno, Aurelio Ayhan, Inci Johnston, Alan Front Psychol Psychology The apparent duration of a visual stimulus has been shown to be influenced by its speed. For low speeds, apparent duration increases linearly with stimulus speed. This effect has been ascribed to the number of changes that occur within a visual interval. Accordingly, a higher number of changes should produce an increase in apparent duration. In order to test this prediction, we asked subjects to compare the relative duration of a 10-Hz drifting comparison stimulus with a standard stimulus that contained a different number of changes in different conditions. The standard could be static, drifting at 10 Hz, or mixed (a combination of variable duration static and drifting intervals). In this last condition the number of changes was intermediate between the static and the continuously drifting stimulus. For all standard durations, the mixed stimulus looked significantly compressed (∼20% reduction) relative to the drifting stimulus. However, no difference emerged between the static (that contained no changes) and the mixed stimuli (which contained an intermediate number of changes). We also observed that when the standard was displayed first, it appeared compressed relative to when it was displayed second with a magnitude that depended on standard duration. These results are at odds with a model of time perception that simply reflects the number of temporal features within an interval in determining the perceived passing of time. Frontiers Research Foundation 2012-03-21 /pmc/articles/PMC3309524/ /pubmed/22461778 http://dx.doi.org/10.3389/fpsyg.2012.00090 Text en Copyright © 2012 Bruno, Ayhan and Johnston. http://www.frontiersin.org/licenseagreement This is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permits non-commercial use, distribution, and reproduction in other forums, provided the original authors and source are credited.
spellingShingle Psychology
Bruno, Aurelio
Ayhan, Inci
Johnston, Alan
Effects of Temporal Features and Order on the Apparent duration of a Visual Stimulus
title Effects of Temporal Features and Order on the Apparent duration of a Visual Stimulus
title_full Effects of Temporal Features and Order on the Apparent duration of a Visual Stimulus
title_fullStr Effects of Temporal Features and Order on the Apparent duration of a Visual Stimulus
title_full_unstemmed Effects of Temporal Features and Order on the Apparent duration of a Visual Stimulus
title_short Effects of Temporal Features and Order on the Apparent duration of a Visual Stimulus
title_sort effects of temporal features and order on the apparent duration of a visual stimulus
topic Psychology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3309524/
https://www.ncbi.nlm.nih.gov/pubmed/22461778
http://dx.doi.org/10.3389/fpsyg.2012.00090
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