A Corticostriatal Neural System Enhances Auditory Perception through Temporal Context Processing
The temporal context of an acoustic signal can greatly influence its perception. The present study investigated the neural correlates underlying perceptual facilitation by regular temporal contexts in humans. Participants listened to temporally regular (periodic) or temporally irregular (nonperiodic...
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| Format: | Article |
| Language: | en_US |
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Society for Neuroscience
2012
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| Online Access: | http://hdl.handle.net/1721.1/75405 https://orcid.org/0000-0002-7796-7872 https://orcid.org/0000-0003-1158-5692 |
| _version_ | 1811082600828108800 |
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| author | Geiser, Eveline Gabrieli, John D. E. |
| author2 | Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences Geiser, Eveline Gabrieli, John D. E. |
| author_sort | Geiser, Eveline |
| collection | MIT |
| description | The temporal context of an acoustic signal can greatly influence its perception. The present study investigated the neural correlates underlying perceptual facilitation by regular temporal contexts in humans. Participants listened to temporally regular (periodic) or temporally irregular (nonperiodic) sequences of tones while performing an intensity discrimination task. Participants performed significantly better on intensity discrimination during periodic than nonperiodic tone sequences. There was greater activation in the putamen for periodic than nonperiodic sequences. Conversely, there was greater activation in bilateral primary and secondary auditory cortices (planum polare and planum temporale) for nonperiodic than periodic sequences. Across individuals, greater putamen activation correlated with lesser auditory cortical activation in both right and left hemispheres. These findings suggest that temporal regularity is detected in the putamen, and that such detection facilitates temporal-lobe cortical processing associated with superior auditory perception. Thus, this study reveals a corticostriatal system associated with contextual facilitation for auditory perception through temporal regularity processing. |
| first_indexed | 2024-09-23T12:05:59Z |
| format | Article |
| id | mit-1721.1/75405 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:05:59Z |
| publishDate | 2012 |
| publisher | Society for Neuroscience |
| record_format | dspace |
| spelling | mit-1721.1/754052022-09-28T00:07:24Z A Corticostriatal Neural System Enhances Auditory Perception through Temporal Context Processing Geiser, Eveline Gabrieli, John D. E. Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences McGovern Institute for Brain Research at MIT Geiser, Eveline Gabrieli, John D. E. The temporal context of an acoustic signal can greatly influence its perception. The present study investigated the neural correlates underlying perceptual facilitation by regular temporal contexts in humans. Participants listened to temporally regular (periodic) or temporally irregular (nonperiodic) sequences of tones while performing an intensity discrimination task. Participants performed significantly better on intensity discrimination during periodic than nonperiodic tone sequences. There was greater activation in the putamen for periodic than nonperiodic sequences. Conversely, there was greater activation in bilateral primary and secondary auditory cortices (planum polare and planum temporale) for nonperiodic than periodic sequences. Across individuals, greater putamen activation correlated with lesser auditory cortical activation in both right and left hemispheres. These findings suggest that temporal regularity is detected in the putamen, and that such detection facilitates temporal-lobe cortical processing associated with superior auditory perception. Thus, this study reveals a corticostriatal system associated with contextual facilitation for auditory perception through temporal regularity processing. Ellison Medical Foundation (Grant) Swiss National Science Foundation (PBZHP1-123304) 2012-12-12T15:19:29Z 2012-12-12T15:19:29Z 2012-05 2012-03 Article http://purl.org/eprint/type/JournalArticle 0270-6474 1529-2401 http://hdl.handle.net/1721.1/75405 Geiser, E., M. Notter, and J. D. E. Gabrieli. “A Corticostriatal Neural System Enhances Auditory Perception Through Temporal Context Processing.” Journal of Neuroscience 32.18 (2012): 6177–6182. https://orcid.org/0000-0002-7796-7872 https://orcid.org/0000-0003-1158-5692 en_US http://dx.doi.org/10.1523/jneurosci.5153-11.2012 Journal of Neuroscience Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Society for Neuroscience SFN |
| spellingShingle | Geiser, Eveline Gabrieli, John D. E. A Corticostriatal Neural System Enhances Auditory Perception through Temporal Context Processing |
| title | A Corticostriatal Neural System Enhances Auditory Perception through Temporal Context Processing |
| title_full | A Corticostriatal Neural System Enhances Auditory Perception through Temporal Context Processing |
| title_fullStr | A Corticostriatal Neural System Enhances Auditory Perception through Temporal Context Processing |
| title_full_unstemmed | A Corticostriatal Neural System Enhances Auditory Perception through Temporal Context Processing |
| title_short | A Corticostriatal Neural System Enhances Auditory Perception through Temporal Context Processing |
| title_sort | corticostriatal neural system enhances auditory perception through temporal context processing |
| url | http://hdl.handle.net/1721.1/75405 https://orcid.org/0000-0002-7796-7872 https://orcid.org/0000-0003-1158-5692 |
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