The Audiovisual Mismatch Negativity in Predictive and Non-Predictive Speech Stimuli in Older Adults With and Without Hearing Loss.

IF 1.8 4区 心理学 Q3 BIOPHYSICS
Melissa Randazzo, Paul J Smith, Ryan Priefer, Deborah R Senzer, Karen Froud
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引用次数: 0

Abstract

Adults with aging-related hearing loss (ARHL) experience adaptive neural changes to optimize their sensory experiences; for example, enhanced audiovisual (AV) and predictive processing during speech perception. The mismatch negativity (MMN) event-related potential is an index of central auditory processing; however, it has not been explored as an index of AV and predictive processing in adults with ARHL. In a pilot study we examined the AV MMN in two conditions of a passive oddball paradigm - one AV condition in which the visual aspect of the stimulus can predict the auditory percept and one AV control condition in which the visual aspect of the stimulus cannot predict the auditory percept. In adults with ARHL, evoked responses in the AV conditions occurred in the early MMN time window while the older adults with normal hearing showed a later MMN. Findings suggest that adults with ARHL are sensitive to AV incongruity, even when the visual is not predictive of the auditory signal. This suggests that predictive coding for AV speech processing may be heightened in adults with ARHL. This paradigm can be used in future studies to measure treatment related changes, for example via aural rehabilitation, in older adults with ARHL.

有听力损失和无听力损失的老年人预测性和非预测性言语刺激的视听失配消极性。
成人老年相关性听力损失(ARHL)经历适应性神经变化以优化其感官体验;例如,语音感知过程中增强的视听(AV)和预测处理。失配负性(MMN)事件相关电位是中枢听觉加工的一个指标;然而,还没有研究将其作为成人ARHL的AV和预测加工的指标。在一项初步研究中,我们在被动古怪范式的两种条件下检查了视音频MMN——一种视音频条件下,刺激的视觉方面可以预测听觉感知,另一种视音频控制条件下,刺激的视觉方面不能预测听觉感知。在ARHL成人中,AV条件下的诱发反应发生在MMN时间窗口的早期,而听力正常的老年人则出现在MMN时间窗口的后期。研究结果表明,即使视觉信号不能预测听觉信号,ARHL成人对AV不一致也很敏感。这表明成人ARHL中AV语音处理的预测编码可能会增强。这种模式可用于未来的研究,以衡量治疗相关的变化,例如通过听觉康复,在老年ARHL患者中。
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来源期刊
Multisensory Research
Multisensory Research BIOPHYSICS-PSYCHOLOGY
CiteScore
3.50
自引率
12.50%
发文量
15
期刊介绍: Multisensory Research is an interdisciplinary archival journal covering all aspects of multisensory processing including the control of action, cognition and attention. Research using any approach to increase our understanding of multisensory perceptual, behavioural, neural and computational mechanisms is encouraged. Empirical, neurophysiological, psychophysical, brain imaging, clinical, developmental, mathematical and computational analyses are welcome. Research will also be considered covering multisensory applications such as sensory substitution, crossmodal methods for delivering sensory information or multisensory approaches to robotics and engineering. Short communications and technical notes that draw attention to new developments will be included, as will reviews and commentaries on current issues. Special issues dealing with specific topics will be announced from time to time. Multisensory Research is a continuation of Seeing and Perceiving, and of Spatial Vision.
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