Participation of the classical speech areas in auditory long-term memory.
Accumulating evidence suggests that storing speech sounds requires transposing rapidly fluctuating sound waves into more easily encoded oromotor sequences. If so, then the classical speech areas in the caudalmost portion of the temporal gyrus (pSTG) and in the inferior frontal gyrus (IFG) may be cri...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2015-01-01
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| Series: | PLoS ONE |
| Online Access: | https://doi.org/10.1371/journal.pone.0119472 |
| _version_ | 1818584444476325888 |
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| author | Anke Ninija Karabanov Rainer Paine Chi Chao Chao Katrin Schulze Brian Scott Mark Hallett Mortimer Mishkin |
| author_facet | Anke Ninija Karabanov Rainer Paine Chi Chao Chao Katrin Schulze Brian Scott Mark Hallett Mortimer Mishkin |
| author_sort | Anke Ninija Karabanov |
| collection | DOAJ |
| description | Accumulating evidence suggests that storing speech sounds requires transposing rapidly fluctuating sound waves into more easily encoded oromotor sequences. If so, then the classical speech areas in the caudalmost portion of the temporal gyrus (pSTG) and in the inferior frontal gyrus (IFG) may be critical for performing this acoustic-oromotor transposition. We tested this proposal by applying repetitive transcranial magnetic stimulation (rTMS) to each of these left-hemisphere loci, as well as to a nonspeech locus, while participants listened to pseudowords. After 5 minutes these stimuli were re-presented together with new ones in a recognition test. Compared to control-site stimulation, pSTG stimulation produced a highly significant increase in recognition error rate, without affecting reaction time. By contrast, IFG stimulation led only to a weak, non-significant, trend toward recognition memory impairment. Importantly, the impairment after pSTG stimulation was not due to interference with perception, since the same stimulation failed to affect pseudoword discrimination examined with short interstimulus intervals. Our findings suggest that pSTG is essential for transforming speech sounds into stored motor plans for reproducing the sound. Whether or not the IFG also plays a role in speech-sound recognition could not be determined from the present results. |
| first_indexed | 2024-12-16T08:21:16Z |
| format | Article |
| id | doaj.art-42c510a8554f411aa70d6867018c8218 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-16T08:21:16Z |
| publishDate | 2015-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-42c510a8554f411aa70d6867018c82182022-12-21T22:38:07ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01103e011947210.1371/journal.pone.0119472Participation of the classical speech areas in auditory long-term memory.Anke Ninija KarabanovRainer PaineChi Chao ChaoKatrin SchulzeBrian ScottMark HallettMortimer MishkinAccumulating evidence suggests that storing speech sounds requires transposing rapidly fluctuating sound waves into more easily encoded oromotor sequences. If so, then the classical speech areas in the caudalmost portion of the temporal gyrus (pSTG) and in the inferior frontal gyrus (IFG) may be critical for performing this acoustic-oromotor transposition. We tested this proposal by applying repetitive transcranial magnetic stimulation (rTMS) to each of these left-hemisphere loci, as well as to a nonspeech locus, while participants listened to pseudowords. After 5 minutes these stimuli were re-presented together with new ones in a recognition test. Compared to control-site stimulation, pSTG stimulation produced a highly significant increase in recognition error rate, without affecting reaction time. By contrast, IFG stimulation led only to a weak, non-significant, trend toward recognition memory impairment. Importantly, the impairment after pSTG stimulation was not due to interference with perception, since the same stimulation failed to affect pseudoword discrimination examined with short interstimulus intervals. Our findings suggest that pSTG is essential for transforming speech sounds into stored motor plans for reproducing the sound. Whether or not the IFG also plays a role in speech-sound recognition could not be determined from the present results.https://doi.org/10.1371/journal.pone.0119472 |
| spellingShingle | Anke Ninija Karabanov Rainer Paine Chi Chao Chao Katrin Schulze Brian Scott Mark Hallett Mortimer Mishkin Participation of the classical speech areas in auditory long-term memory. PLoS ONE |
| title | Participation of the classical speech areas in auditory long-term memory. |
| title_full | Participation of the classical speech areas in auditory long-term memory. |
| title_fullStr | Participation of the classical speech areas in auditory long-term memory. |
| title_full_unstemmed | Participation of the classical speech areas in auditory long-term memory. |
| title_short | Participation of the classical speech areas in auditory long-term memory. |
| title_sort | participation of the classical speech areas in auditory long term memory |
| url | https://doi.org/10.1371/journal.pone.0119472 |
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