Working Memory-Specific Activity in Auditory Cortex: Potential Correlates of Sequential Processing and Maintenance
| العنوان: | Working Memory-Specific Activity in Auditory Cortex: Potential Correlates of Sequential Processing and Maintenance |
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| المؤلفون: | Koichi Yoneda, Henning Scheich, André Brechmann, Birgit Gaschler-Markefski, Thomas Kaulisch, Mandy Sohr |
| المصدر: | Cerebral Cortex. 17:2544-2552 |
| بيانات النشر: | Oxford University Press (OUP), 2007. |
| سنة النشر: | 2007 |
| مصطلحات موضوعية: | Adult, Male, medicine.medical_specialty, Cognitive Neuroscience, Planum temporale, media_common.quotation_subject, Statistics as Topic, Audiology, Auditory cortex, Task (project management), Cellular and Molecular Neuroscience, Perception, Task Performance and Analysis, medicine, Humans, Sensory cortex, media_common, Auditory Cortex, n-back, medicine.diagnostic_test, Working memory, Memory, Short-Term, medicine.anatomical_structure, Mental Recall, Evoked Potentials, Auditory, Female, Psychology, Functional magnetic resonance imaging, Cognitive psychology |
| الوصف: | Working memory (WM) tasks involve several interrelated processes during which past information must be transiently maintained, recalled, and compared with test items according to previously instructed rules. It is not clear whether the rule-specific comparisons of perceptual with memorized items are only performed in previously identified frontal and parietal WM areas or whether these areas orchestrate such comparisons by feedback to sensory cortex. We tested the latter hypothesis by focusing on auditory cortex (AC) areas with low-noise functional magnetic resonance imaging in a 2-back WM task involving frequency-modulated (FM) tones. The control condition was a 0-back task on the same stimuli. Analysis of the group data identified an area on right planum temporale equally activated by both tasks and an area on the left planum temporale specifically involved in the 2-back task. A region of interest analysis in each individual revealed that activation on the left planum temporale in the 2-back task positively correlated with the task performance of the subjects. This strongly suggests a prominent role of the AC in 2-back WM tasks. In conjunction with previous findings on FM processing, the left lateralized effect presumably reflects the complex sequential processing demand of the 2-back matching to sample task. |
| تدمد: | 1460-2199 1047-3211 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73fdb77d557dea83762983795f6613ba https://doi.org/10.1093/cercor/bhl160 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....73fdb77d557dea83762983795f6613ba |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14602199 10473211 |
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