کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5737943 | 1614730 | 2017 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Changes in pitch height elicit both language-universal and language-dependent changes in neural representation of pitch in the brainstem and auditory cortex
ترجمه فارسی عنوان
تغییرات در ارتفاع قله موجب ایجاد تغییرات زبان و جهانی در نمایندگی عصبی زمین در ساقه مغز و قشر شنوایی
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کلمات کلیدی
MMNPitch onset responsePitch heightIRNFFRPORCPR - احیای قلبی ریویElectroencephalography - الکتروانسافالوگرافیEnglish - انگلیسیMEG - بهanalysis of variance - تحلیل واریانسANOVA - تحلیل واریانس Analysis of varianceAuditory - شنواییfrequency following response - فرکانس زیر پاسخmagnetoencephalography - مغناطیس مغزmismatch negativity - ناسازگاری منفیEEG - نوار مغزیiterated rippled noise - نویز رشته ای تکرار شده استCortical pitch response - پاسخ زمین کوهیPitch encoding - پچ کد گذاریChinese - چینی ها
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
چکیده انگلیسی
Language experience shapes encoding of pitch-relevant information at both brainstem and cortical levels of processing. Pitch height is a salient dimension that orders pitch from low to high. Herein we investigate the effects of language experience (Chinese, English) in the brainstem and cortex on (i) neural responses to variations in pitch height, (ii) presence of asymmetry in cortical pitch representation, and (iii) patterns of relative changes in magnitude of pitch height between these two levels of brain structure. Stimuli were three nonspeech homologs of Mandarin Tone 2 varying in pitch height only. The frequency-following response (FFR) and the cortical pitch-specific response (CPR) were recorded concurrently. At the Fz-linked T7/T8 site, peak latency of Na, Pb, and Nb decreased with increasing pitch height for both groups. Peak-to-peak amplitude of Na-Pb and Pb-Nb increased with increasing pitch height across groups. A language-dependent effect was restricted to Na-Pb; the Chinese had larger amplitude than the English group. At temporal sites (T7/T8), the Chinese group had larger amplitude, as compared to English, across stimuli, but also limited to the Na-Pb component and right temporal site. In the brainstem, F0 magnitude decreased with increasing pitch height; Chinese had larger magnitude across stimuli. A comparison of CPR and FFR responses revealed distinct patterns of relative changes in magnitude common to both groups. CPR amplitude increased and FFR amplitude decreased with increasing pitch height. Experience-dependent effects on CPR components vary as a function of neural sensitivity to pitch height within a particular temporal window (Na-Pb). Differences between the auditory brainstem and cortex imply distinct neural mechanisms for pitch extraction at both levels of brain structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience - Volume 346, 27 March 2017, Pages 52-63
Journal: Neuroscience - Volume 346, 27 March 2017, Pages 52-63
نویسندگان
Ananthanarayan Krishnan, Chandan H. Suresh, Jackson T. Gandour,