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Spatial Release from Masking with a Moving Target

In the visual domain, a stationary object that is difficult to detect usually becomes far more salient if it moves while the objects around it do not. This “pop out” effect is important for parsing the visual world into figure/ground relationships that allow creatures to detect food, threats, etc. W...

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Detalles Bibliográficos
Autores principales: Pastore, M. Torben, Yost, William A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5742351/
https://www.ncbi.nlm.nih.gov/pubmed/29326638
http://dx.doi.org/10.3389/fpsyg.2017.02238
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author Pastore, M. Torben
Yost, William A.
author_facet Pastore, M. Torben
Yost, William A.
author_sort Pastore, M. Torben
collection PubMed
description In the visual domain, a stationary object that is difficult to detect usually becomes far more salient if it moves while the objects around it do not. This “pop out” effect is important for parsing the visual world into figure/ground relationships that allow creatures to detect food, threats, etc. We tested for an auditory correlate to this visual effect by asking listeners to identify a single word, spoken by a female, embedded with two or four masking words spoken by males. Percentage correct scores were analyzed and compared between conditions where target and maskers were presented from the same position vs. when the target was presented from one position while maskers were presented from different positions. In some trials, the target word was moved across the speaker array using amplitude panning, while in other trials that target was played from a single, static position. Results showed a spatial release from masking for all conditions where the target and maskers were not located at the same position, but there was no statistically significant difference between identification performance when the target was moving vs. when it was stationary. These results suggest that, at least for short stimulus durations (0.75 s for the stimuli in this experiment), there is unlikely to be a “pop out” effect for moving target stimuli in the auditory domain as there is in the visual domain.
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spelling pubmed-57423512018-01-11 Spatial Release from Masking with a Moving Target Pastore, M. Torben Yost, William A. Front Psychol Psychology In the visual domain, a stationary object that is difficult to detect usually becomes far more salient if it moves while the objects around it do not. This “pop out” effect is important for parsing the visual world into figure/ground relationships that allow creatures to detect food, threats, etc. We tested for an auditory correlate to this visual effect by asking listeners to identify a single word, spoken by a female, embedded with two or four masking words spoken by males. Percentage correct scores were analyzed and compared between conditions where target and maskers were presented from the same position vs. when the target was presented from one position while maskers were presented from different positions. In some trials, the target word was moved across the speaker array using amplitude panning, while in other trials that target was played from a single, static position. Results showed a spatial release from masking for all conditions where the target and maskers were not located at the same position, but there was no statistically significant difference between identification performance when the target was moving vs. when it was stationary. These results suggest that, at least for short stimulus durations (0.75 s for the stimuli in this experiment), there is unlikely to be a “pop out” effect for moving target stimuli in the auditory domain as there is in the visual domain. Frontiers Media S.A. 2017-12-20 /pmc/articles/PMC5742351/ /pubmed/29326638 http://dx.doi.org/10.3389/fpsyg.2017.02238 Text en Copyright © 2017 Pastore and Yost. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Psychology
Pastore, M. Torben
Yost, William A.
Spatial Release from Masking with a Moving Target
title Spatial Release from Masking with a Moving Target
title_full Spatial Release from Masking with a Moving Target
title_fullStr Spatial Release from Masking with a Moving Target
title_full_unstemmed Spatial Release from Masking with a Moving Target
title_short Spatial Release from Masking with a Moving Target
title_sort spatial release from masking with a moving target
topic Psychology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5742351/
https://www.ncbi.nlm.nih.gov/pubmed/29326638
http://dx.doi.org/10.3389/fpsyg.2017.02238
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