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Facilitated Auditory Detection for Speech Sounds
If it is well known that knowledge facilitates higher cognitive functions, such as visual and auditory word recognition, little is known about the influence of knowledge on detection, particularly in the auditory modality. Our study tested the influence of phonological and lexical knowledge on audit...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Research Foundation
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3145255/ https://www.ncbi.nlm.nih.gov/pubmed/21845183 http://dx.doi.org/10.3389/fpsyg.2011.00176 |
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author | Signoret, Carine Gaudrain, Etienne Tillmann, Barbara Grimault, Nicolas Perrin, Fabien |
author_facet | Signoret, Carine Gaudrain, Etienne Tillmann, Barbara Grimault, Nicolas Perrin, Fabien |
author_sort | Signoret, Carine |
collection | PubMed |
description | If it is well known that knowledge facilitates higher cognitive functions, such as visual and auditory word recognition, little is known about the influence of knowledge on detection, particularly in the auditory modality. Our study tested the influence of phonological and lexical knowledge on auditory detection. Words, pseudo-words, and complex non-phonological sounds, energetically matched as closely as possible, were presented at a range of presentation levels from sub-threshold to clearly audible. The participants performed a detection task (Experiments 1 and 2) that was followed by a two alternative forced-choice recognition task in Experiment 2. The results of this second task in Experiment 2 suggest a correct recognition of words in the absence of detection with a subjective threshold approach. In the detection task of both experiments, phonological stimuli (words and pseudo-words) were better detected than non-phonological stimuli (complex sounds), presented close to the auditory threshold. This finding suggests an advantage of speech for signal detection. An additional advantage of words over pseudo-words was observed in Experiment 2, suggesting that lexical knowledge could also improve auditory detection when listeners had to recognize the stimulus in a subsequent task. Two simulations of detection performance performed on the sound signals confirmed that the advantage of speech over non-speech processing could not be attributed to energetic differences in the stimuli. |
format | Online Article Text |
id | pubmed-3145255 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | Frontiers Research Foundation |
record_format | MEDLINE/PubMed |
spelling | pubmed-31452552011-08-15 Facilitated Auditory Detection for Speech Sounds Signoret, Carine Gaudrain, Etienne Tillmann, Barbara Grimault, Nicolas Perrin, Fabien Front Psychol Psychology If it is well known that knowledge facilitates higher cognitive functions, such as visual and auditory word recognition, little is known about the influence of knowledge on detection, particularly in the auditory modality. Our study tested the influence of phonological and lexical knowledge on auditory detection. Words, pseudo-words, and complex non-phonological sounds, energetically matched as closely as possible, were presented at a range of presentation levels from sub-threshold to clearly audible. The participants performed a detection task (Experiments 1 and 2) that was followed by a two alternative forced-choice recognition task in Experiment 2. The results of this second task in Experiment 2 suggest a correct recognition of words in the absence of detection with a subjective threshold approach. In the detection task of both experiments, phonological stimuli (words and pseudo-words) were better detected than non-phonological stimuli (complex sounds), presented close to the auditory threshold. This finding suggests an advantage of speech for signal detection. An additional advantage of words over pseudo-words was observed in Experiment 2, suggesting that lexical knowledge could also improve auditory detection when listeners had to recognize the stimulus in a subsequent task. Two simulations of detection performance performed on the sound signals confirmed that the advantage of speech over non-speech processing could not be attributed to energetic differences in the stimuli. Frontiers Research Foundation 2011-07-26 /pmc/articles/PMC3145255/ /pubmed/21845183 http://dx.doi.org/10.3389/fpsyg.2011.00176 Text en Copyright © 2011 Signoret, Gaudrain, Tillmann, Grimault and Perrin. http://www.frontiersin.org/licenseagreement This is an open-access article subject to a non-exclusive license between the authors and Frontiers Media SA, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and other Frontiers conditions are complied with. |
spellingShingle | Psychology Signoret, Carine Gaudrain, Etienne Tillmann, Barbara Grimault, Nicolas Perrin, Fabien Facilitated Auditory Detection for Speech Sounds |
title | Facilitated Auditory Detection for Speech Sounds |
title_full | Facilitated Auditory Detection for Speech Sounds |
title_fullStr | Facilitated Auditory Detection for Speech Sounds |
title_full_unstemmed | Facilitated Auditory Detection for Speech Sounds |
title_short | Facilitated Auditory Detection for Speech Sounds |
title_sort | facilitated auditory detection for speech sounds |
topic | Psychology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3145255/ https://www.ncbi.nlm.nih.gov/pubmed/21845183 http://dx.doi.org/10.3389/fpsyg.2011.00176 |
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