Conflict monitoring in speech processing: An fMRI study of error detection in speech production and perception
Conflict monitoring in speech processing: An fMRI study of error detection in speech production and perception
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DOI：
10.1016/j.neuroimage.2015.11.037
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发表时间：
2016-02-01
期刊：
影响因子：
5.7
通讯作者：
Hartsuiker, Robert J.
中科院分区：
文献类型：
--
作者：
Gauvin, Hanna S.;De Baene, Wouter;Hartsuiker, Robert J.
为了最大限度地减少语音错误的数量，从而促进沟通，在发音之前对语音进行监控。然而，目前尚不清楚语音产生监控在哪个级别进行，以及使用什么机制来检测和纠正错误。本研究调查了内部言语监控是否通过言语感知系统进行（如基于感知的言语监控理论所提出的），或者是否应用了独立于感知的机制（如基于生产的言语监控理论所提出的）。通过在绕口令任务中使用功能磁共振成像，我们观察到，噪声掩蔽的显性语音产生过程中的内部语音错误检测和语音感知中的错误检测都招募相同的神经网络，其中包括前补充运动区（pre-SMA）、背侧前扣带皮层（dACC）、前岛叶（AI）和额下回（IFG）。尽管正如基于感知的账户所提出的那样，生成和感知招募了相似的区域，但正如这些账户假设的那样，在语音生成的内部语音监控过程中，我们没有发现上颞区（通常与语音感知相关）的激活。相反，结果与语音监控的领域通用方法高度兼容，通过检测响应选项之间的冲突来进行内部语音监控，随后由领域通用执行中心（例如 ACC）解决。 (C) 2015 Elsevier Inc. 保留所有权利。
To minimize the number of errors in speech, and thereby facilitate communication, speech is monitored before articulation. It is, however, unclear at which level during speech production monitoring takes place, and what mechanisms are used to detect and correct errors. The present study investigated whether internal verbal monitoring takes place through the speech perception system, as proposed by perception-based theories of speech monitoring, or whether mechanisms independent of perception are applied, as proposed by production-based theories of speech monitoring. With the use of fMRI during a tongue twister task we observed that error detection in internal speech during noise-masked overt speech production and error detection in speech perception both recruit the same neural network, which includes pre-supplementary motor area (pre-SMA), dorsal anterior cingulate cortex (dACC), anterior insula (AI), and inferior frontal gyrus (IFG). Although production and perception recruit similar areas, as proposed by perception-based accounts, we did not find activation in superior temporal areas (which are typically associated with speech perception) during internal speech monitoring in speech production as hypothesized by these accounts. On the contrary, results are highly compatible with a domain general approach to speech monitoring, by which internal speech monitoring takes place through detection of conflict between response options, which is subsequently resolved by a domain general executive center (e.g., the ACC). (C) 2015 Elsevier Inc. All rights reserved.