Perceptual formant discrimination during speech movement planning.
Evoked potential studies have shown that speech planning modulates auditory cortical responses. The phenomenon's functional relevance is unknown. We tested whether, during this time window of cortical auditory modulation, there is an effect on speakers' perceptual sensitivity for vowel for...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2024-01-01
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| Series: | PLoS ONE |
| Online Access: | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0301514&type=printable |
| _version_ | 1797202017922318336 |
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| author | Hantao Wang Yusuf Ali Ludo Max |
| author_facet | Hantao Wang Yusuf Ali Ludo Max |
| author_sort | Hantao Wang |
| collection | DOAJ |
| description | Evoked potential studies have shown that speech planning modulates auditory cortical responses. The phenomenon's functional relevance is unknown. We tested whether, during this time window of cortical auditory modulation, there is an effect on speakers' perceptual sensitivity for vowel formant discrimination. Participants made same/different judgments for pairs of stimuli consisting of a pre-recorded, self-produced vowel and a formant-shifted version of the same production. Stimuli were presented prior to a "go" signal for speaking, prior to passive listening, and during silent reading. The formant discrimination stimulus /uh/ was tested with a congruent productions list (words with /uh/) and an incongruent productions list (words without /uh/). Logistic curves were fitted to participants' responses, and the just-noticeable difference (JND) served as a measure of discrimination sensitivity. We found a statistically significant effect of condition (worst discrimination before speaking) without congruency effect. Post-hoc pairwise comparisons revealed that JND was significantly greater before speaking than during silent reading. Thus, formant discrimination sensitivity was reduced during speech planning regardless of the congruence between discrimination stimulus and predicted acoustic consequences of the planned speech movements. This finding may inform ongoing efforts to determine the functional relevance of the previously reported modulation of auditory processing during speech planning. |
| first_indexed | 2024-04-24T07:56:45Z |
| format | Article |
| id | doaj.art-15837ff0281d42d9aeb37e858b02b263 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-24T07:56:45Z |
| publishDate | 2024-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-15837ff0281d42d9aeb37e858b02b2632024-04-18T05:31:55ZengPublic Library of Science (PLoS)PLoS ONE1932-62032024-01-01194e030151410.1371/journal.pone.0301514Perceptual formant discrimination during speech movement planning.Hantao WangYusuf AliLudo MaxEvoked potential studies have shown that speech planning modulates auditory cortical responses. The phenomenon's functional relevance is unknown. We tested whether, during this time window of cortical auditory modulation, there is an effect on speakers' perceptual sensitivity for vowel formant discrimination. Participants made same/different judgments for pairs of stimuli consisting of a pre-recorded, self-produced vowel and a formant-shifted version of the same production. Stimuli were presented prior to a "go" signal for speaking, prior to passive listening, and during silent reading. The formant discrimination stimulus /uh/ was tested with a congruent productions list (words with /uh/) and an incongruent productions list (words without /uh/). Logistic curves were fitted to participants' responses, and the just-noticeable difference (JND) served as a measure of discrimination sensitivity. We found a statistically significant effect of condition (worst discrimination before speaking) without congruency effect. Post-hoc pairwise comparisons revealed that JND was significantly greater before speaking than during silent reading. Thus, formant discrimination sensitivity was reduced during speech planning regardless of the congruence between discrimination stimulus and predicted acoustic consequences of the planned speech movements. This finding may inform ongoing efforts to determine the functional relevance of the previously reported modulation of auditory processing during speech planning.https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0301514&type=printable |
| spellingShingle | Hantao Wang Yusuf Ali Ludo Max Perceptual formant discrimination during speech movement planning. PLoS ONE |
| title | Perceptual formant discrimination during speech movement planning. |
| title_full | Perceptual formant discrimination during speech movement planning. |
| title_fullStr | Perceptual formant discrimination during speech movement planning. |
| title_full_unstemmed | Perceptual formant discrimination during speech movement planning. |
| title_short | Perceptual formant discrimination during speech movement planning. |
| title_sort | perceptual formant discrimination during speech movement planning |
| url | https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0301514&type=printable |
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