Early lexical influences on sublexical processing in speech perception: Evidence from electrophysiology

Early lexical influences on sublexical processing in speech perception: Evidence from electrophysiology
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早期词汇对言语感知中词汇下处理的影响:来自电生理学的证据

DOI:
10.1016/j.cognition.2019.104162
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发表时间:
2020
期刊:
影响因子:
3.4
通讯作者:
Fischer-Baum, Simon
Fischer-Baum, Simon
中科院分区:
心理学2区
文献类型:
--
作者:
Noe, Colin;Fischer-Baum, Simon

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上下文信息影响我们如何感知语音,但目前尚不清楚上下文信息在哪个处理级别与声学信息合并。言语加工的早期阶段,如发音特征和言语声音部分被识别的亚词汇加工,是否严格前馈或受语义和词汇语境的影响,理论存在分歧。在目前的研究中,我们调查的时间过程中的词汇语境的影响,对个人的声音,我们认为通过记录脑电图作为一种在线测量的语音处理,而受试者从事词汇偏置音素分类任务的判断。我们发现,词汇语境调制的N100,与言语知觉的亚词汇过程的ERP组件的振幅。我们证明,这些结果可以在一个交互式的语音感知模型建模,并没有很好地适应任何建立前馈机制的词汇偏见。这些结果支持交互式语音感知理论,前馈理论,其中亚词汇语音感知过程只由自下而上的信息驱动。
Contextual information influences how we perceive speech, but it remains unclear at which level of processing contextual information merges with acoustic information. Theories differ on whether early stages of speech processing, like sublexical processing during which articulatory features and portions of speech sounds are identified, are strictly feed-forward or are influenced by semantic and lexical context. In the current study, we investigate the time-course of lexical context effects on judgments about the individual sounds we perceive by recording electroencephalography as an online measure of speech processing while subjects engage in a lexically biasing phoneme categorization task. We find that lexical context modulates the amplitude of the N100, an ERP component linked with sublexical processes in speech perception. We demonstrate that these results can be modeled in an interactive speech perception model and are not well fit by any established feed-forward mechanisms of lexical bias. These results support interactive speech perception theories over feed-forward theories in which sublexical speech perception processes are only driven by bottom-up information.
DOI: 10.1111/psyp.12639
发表时间: 2017-01
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发表时间: 2018
影响因子: 3.8
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期刊: Journal of experimental psychology. Human perception and performance
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发表时间: 2011-04
影响因子: 5.4
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DOI: --
发表时间: 1995
期刊:
影响因子: --
作者:
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