Stimulus-dependent activations and attention-related modulations in the auditory cortex: A meta-analysis of fMRI studies
Stimulus-dependent activations and attention-related modulations in the auditory cortex: A meta-analysis of fMRI studies
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DOI：
10.1016/j.heares.2013.08.001
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发表时间：
2014-01-01
期刊：
影响因子：
2.8
通讯作者：
Woods, David L.
中科院分区：
文献类型：
--
作者：
Alho, Kimmo;Rinne, Teemu;Woods, David L.
我们荟萃分析了115项功能性磁共振成像（fMRI）研究，这些研究报告了与主动和被动处理非语音声音的音高和空间位置以及主动和被动语音和语音处理相关的激活的大脑皮层（AC）坐标。我们的目的是通过使用开源Matlab工具箱VAMCA（皮质解剖可视化和荟萃分析）对激活位点进行统计分析，揭示这些激活的AC表面位置之间的任何系统差异。与音调处理相关联的AC激活（例如，主动或被动听音调变化与固定）具有中间上级颞回（STG），Heschl's回的侧面。然而，激活的中位数位点，由于处理不频繁的音高变化的音调流集中在STG或平面颞叶（PT），显着落后于其他类型的音高处理的中位数位点。由于集中注意力到音高而引起的注意力相关调制的中值位点（例如，选择性地注意到在同时序列中传递的低或高音调）依次集中在STG或上级颞沟（STS）中，在用于被动音高处理的中间LAD之后。由于空间处理的激活集中在后STG或PT，显著后音高处理位点（处理不频繁的音高变化除外）。在右半球AC中，空间注意相关调制的中值位点在STS中，显著劣于被动空间处理的中值位点。与言语处理相关的激活和与语音处理相关的激活在STG中期和STS中期的边界处具有不可区分的中值位点。注意力相关的调制由于注意到语音的中位数位点在同一个中STG/STS区域。因此，虽然对非语音声音的音高或位置的关注似乎招募了较少参与被动音高或位置处理的AC区域，但对语音的集中关注主要增强了在被动听力期间已经对人类发声做出反应的区域的激活。这表明，不同的注意机制可能从事注意到讲话和注意到更基本的听觉功能，如音调或location.This文章的一部分，题为特刊。(C)2013爱思唯尔有限公司版权所有。
We meta-analyzed 115 functional magnetic resonance imaging (fMRI) studies reporting auditory-cortex (AC) coordinates for activations related to active and passive processing of pitch and spatial location of non-speech sounds, as well as to the active and passive speech and voice processing. We aimed at revealing any systematic differences between AC surface locations of these activations by statistically analyzing the activation loci using the open-source Matlab toolbox VAMCA (Visualization and Meta-analysis on Cortical Anatomy). AC activations associated with pitch processing (e.g., active or passive listening to tones with a varying vs. fixed pitch) had median loci in the middle superior temporal gyrus (STG), lateral to Heschl's gyrus. However, median loci of activations due to the processing of infrequent pitch changes in a tone stream were centered in the STG or planum temporale (PT), significantly posterior to the median loci for other types of pitch processing. Median loci of attention-related modulations due to focused attention to pitch (e.g., attending selectively to low or high tones delivered in concurrent sequences) were, in turn, centered in the STG or superior temporal sulcus (STS), posterior to median lad for passive pitch processing. Activations due to spatial processing were centered in the posterior STG or PT, significantly posterior to pitch processing loci (processing of infrequent pitch changes excluded). In the right-hemisphere AC, the median locus of spatial attention-related modulations was in the STS, significantly inferior to the median locus for passive spatial processing. Activations associated with speech processing and those associated with voice processing had indistinguishable median loci at the border of mid-STG and mid-STS. Median loci of attention-related modulations due to attention to speech were in the same mid-STG/STS region. Thus, while attention to the pitch or location of non-speech sounds seems to recruit AC areas less involved in passive pitch or location processing, focused attention to speech predominantly enhances activations in regions that already respond to human vocalizations during passive listening. This suggests that distinct attention mechanisms might be engaged by attention to speech and attention to more elemental auditory features such as tone pitch or location.This article is part of a Special Issue entitled . (C) 2013 Elsevier B.V. All rights reserved.