کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8841150 | 1614707 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Musical Expectations Enhance Auditory Cortical Processing in Musicians: A Magnetoencephalography Study
ترجمه فارسی عنوان
انتظارات موسیقایی بهبود پردازش گوش شنوائی در موسیقی دانان: یک مطالعه مغناطیسنفالوگرافی
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کلمات کلیدی
early right anterior negativityAuditory-evoked magnetic fieldP2mERANAEFROIs - ROI هاContext - بافت یا متن نوشتهMEG - بهLatency - تاخیرanalysis of variance - تحلیل واریانسANOVA - تحلیل واریانس Analysis of variancestandard error of the mean - خطای استاندارد میانگینAuditory Cortex - قشر شنواییSEM - مدل معادلات ساختاری / میکروسکوپ الکترونی روبشیmagnetoencephalography - مغناطیس مغزRegions Of Interest - مناطق مورد علاقهMusician - نوازنده
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
چکیده انگلیسی
The present study investigated the influence of musical expectations on auditory representations in musicians and non-musicians using magnetoencephalography (MEG). Neuroscientific studies have demonstrated that musical syntax is processed in the inferior frontal gyri, eliciting an early right anterior negativity (ERAN), and anatomical evidence has shown that interconnections occur between the frontal cortex and the belt and parabelt regions in the auditory cortex (AC). Therefore, we anticipated that musical expectations would mediate neural activities in the AC via an efferent pathway. To test this hypothesis, we measured the auditory-evoked fields (AEFs) of seven musicians and seven non-musicians while they were listening to a five-chord progression in which the expectancy of the third chord was manipulated (highly expected, less expected, and unexpected). The results revealed that highly expected chords elicited shorter N1m (negative AEF at approximately 100â¯ms) and P2m (positive AEF at approximately 200â¯ms) latencies and larger P2m amplitudes in the AC than less-expected and unexpected chords. The relations between P2m amplitudes/latencies and harmonic expectations were similar between the groups; however, musicians' results were more remarkable than those of non-musicians. These findings suggest that auditory cortical processing is enhanced by musical knowledge and long-term training in a top-down manner, which is reflected in shortened N1m and P2m latencies and enhanced P2m amplitudes in the AC.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience - Volume 369, 15 January 2018, Pages 325-335
Journal: Neuroscience - Volume 369, 15 January 2018, Pages 325-335
نویسندگان
Jeong Mi Park, Chun Kee Chung, June Sic Kim, Kyung Myun Lee, Jaeho Seol, Suk Won Yi,