动态因果模型分析揭示了多感觉语言知觉过程中运动皮层的调节和颞上回的整合

IF 3.1 3区 工程技术 Q2 NEUROSCIENCES
Cognitive Neurodynamics Pub Date : 2024-06-01 Epub Date: 2023-03-04 DOI:10.1007/s11571-023-09945-z
Ting Zou, Liyuan Li, Xinju Huang, Chijun Deng, Xuyang Wang, Qing Gao, Huafu Chen, Rong Li
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引用次数: 0

摘要

处理来自各种感官模式的语音信息对人类交流至关重要。左后颞上回(pSTG)和运动皮层在多感官言语感知中都有重要作用。然而,初级感觉区域与 pSTG 和运动皮层的动态整合仍不清楚。在此,我们对 63 名正常成人进行了经典麦格克效应范式的行为实验,并获取了同步视听音节感知过程中的任务功能磁共振成像(fMRI)数据。我们进行了动态因果建模(DCM)分析,以探索左侧颞上回(pSTG)、左侧中央前回(PrG)、左侧颞中上回(mSTG)和左侧纺锤回(FuG)之间的跨模态相互作用。贝叶斯模型选择倾向于一个获胜模型,该模型包括与 PrG(mSTG → PrG,FuG → PrG)、PrG(PrG → mSTG,PrG → FuG)和 pSTG(mSTG → pSTG,FuG → pSTG)的连接调节。此外,上述连接的耦合强度与行为的麦格克易感性相关。此外,这些连接的耦合强度在强麦格克感知者和弱麦格克感知者之间存在明显差异。强感知者调节的抑制性视觉影响较小,允许流入 PrG 的兴奋性听觉信息较少,但在 pSTG 中整合的视听信息较多。总之,我们的研究结果表明,在视听言语过程中,PrG 和 pSTG 与初级皮层动态互动,并支持运动皮层在调节听觉和视觉模式之间的增益和显著性方面发挥特殊的功能作用:在线版本包含补充材料,可查阅 10.1007/s11571-023-09945-z。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamic causal modeling analysis reveals the modulation of motor cortex and integration in superior temporal gyrus during multisensory speech perception.

The processing of speech information from various sensory modalities is crucial for human communication. Both left posterior superior temporal gyrus (pSTG) and motor cortex importantly involve in the multisensory speech perception. However, the dynamic integration of primary sensory regions to pSTG and the motor cortex remain unclear. Here, we implemented a behavioral experiment of classical McGurk effect paradigm and acquired the task functional magnetic resonance imaging (fMRI) data during synchronized audiovisual syllabic perception from 63 normal adults. We conducted dynamic causal modeling (DCM) analysis to explore the cross-modal interactions among the left pSTG, left precentral gyrus (PrG), left middle superior temporal gyrus (mSTG), and left fusiform gyrus (FuG). Bayesian model selection favored a winning model that included modulations of connections to PrG (mSTG → PrG, FuG → PrG), from PrG (PrG → mSTG, PrG → FuG), and to pSTG (mSTG → pSTG, FuG → pSTG). Moreover, the coupling strength of the above connections correlated with behavioral McGurk susceptibility. In addition, significant differences were found in the coupling strength of these connections between strong and weak McGurk perceivers. Strong perceivers modulated less inhibitory visual influence, allowed less excitatory auditory information flowing into PrG, but integrated more audiovisual information in pSTG. Taken together, our findings show that the PrG and pSTG interact dynamically with primary cortices during audiovisual speech, and support the motor cortex plays a specifically functional role in modulating the gain and salience between auditory and visual modalities.

Supplementary information: The online version contains supplementary material available at 10.1007/s11571-023-09945-z.

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来源期刊
Cognitive Neurodynamics
Cognitive Neurodynamics 医学-神经科学
CiteScore
6.90
自引率
18.90%
发文量
140
审稿时长
12 months
期刊介绍: Cognitive Neurodynamics provides a unique forum of communication and cooperation for scientists and engineers working in the field of cognitive neurodynamics, intelligent science and applications, bridging the gap between theory and application, without any preference for pure theoretical, experimental or computational models. The emphasis is to publish original models of cognitive neurodynamics, novel computational theories and experimental results. In particular, intelligent science inspired by cognitive neuroscience and neurodynamics is also very welcome. The scope of Cognitive Neurodynamics covers cognitive neuroscience, neural computation based on dynamics, computer science, intelligent science as well as their interdisciplinary applications in the natural and engineering sciences. Papers that are appropriate for non-specialist readers are encouraged. 1. There is no page limit for manuscripts submitted to Cognitive Neurodynamics. Research papers should clearly represent an important advance of especially broad interest to researchers and technologists in neuroscience, biophysics, BCI, neural computer and intelligent robotics. 2. Cognitive Neurodynamics also welcomes brief communications: short papers reporting results that are of genuinely broad interest but that for one reason and another do not make a sufficiently complete story to justify a full article publication. Brief Communications should consist of approximately four manuscript pages. 3. Cognitive Neurodynamics publishes review articles in which a specific field is reviewed through an exhaustive literature survey. There are no restrictions on the number of pages. Review articles are usually invited, but submitted reviews will also be considered.
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