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首页> 外文期刊>Cognitive, affective & behavioral neuroscience >The Sounds of Sentences: Differentiating the Influence of Physical Sound, Sound Imagery, and Linguistically Implied Sounds on Physical Sound Processing
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The Sounds of Sentences: Differentiating the Influence of Physical Sound, Sound Imagery, and Linguistically Implied Sounds on Physical Sound Processing

机译：句子的声音：区分物理声音，声音图像和语言隐含声音对物理声音处理的影响

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摘要

Both the imagery literature and grounded models of language comprehension emphasize the tight coupling of high-level cognitive processes, such as forming a mental image of something or language understanding, and low-level sensorimotor processes in the brain. In an electrophysiological study, imagery and language processes were directly compared and the sensory associations of processing linguistically implied sounds or imagined sounds were investigated. Participants read sentences describing auditory events (e.g., "The dog barks"), heard a physical (environmental) sound, or had to imagine such a sound. We examined the influence of the 3 sound conditions (linguistic, physical, imagery) on subsequent physical sound processing. Event-related potential (ERP) difference waveforms indicated that in all 3 conditions, prime compatibility influenced physical sound processing. The earliest compatibility effect was observed in the physical condition, starting in the 80-110 ms time interval with a negative maximum over occipital electrode sites. In contrast, the linguistic and the imagery condition elicited compatibility effects starting in the 180-220 ms time window with a maximum over central electrode sites. In line with the ERPs, the analysis of the oscillatory activity showed that compatibility influenced early theta and alpha band power changes in the physical, but not in the linguistic and imagery, condition. These dissociations were further confirmed by dipole localization results showing a clear separation between the source of the compatibility effect in the physical sound condition (superior temporal area) and the source of the compatibility effect triggered by the linguistically implied sounds or the imagined sounds (inferior temporal area). Implications for grounded models of language understanding are discussed.
机译：图像文献和扎实的语言理解模型都强调高级认知过程的紧密耦合，例如形成某种事物或语言理解的心理形象，以及大脑中的低水平感觉运动过程。在电生理研究中，直接比较了图像和语言过程，并研究了处理语言隐含声音或想象声音的感觉联系。参加者阅读了描述听觉事件的句子（例如“狗叫”），听到了物理（环境）声音，或者不得不想象这种声音。我们检查了3种声音条件（语言，物理，图像）对后续物理声音处理的影响。事件相关电位（ERP）差异波形表明，在所有3种情况下，主要兼容性都会影响物理声音处理。在物理条件下观察到了最早的相容性效果，从80-110 ms的时间间隔开始，枕骨电极部位的负最大值最大。相反，语言和图像条件引起的兼容性效应始于180-220 ms时间窗口，中心电极位置的最大值。与ERP一致，对振荡活动的分析表明，兼容性会影响物理条件（而不是语言和图像条件）中早期θ和α波段功率的变化。这些离解进一步由偶极子定位结果证实，该结果表明物理声音条件（上颞区域）中的相容性效应源与语言隐含声音或想象中的声音（下等颞部）触发的相容性效应源之间存在明显的分离。区）。讨论了对语言理解的基础模型的含义。

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