The MMN by another name? Exploring the autonomy of the Phonological Mapping (Mismatch) Negativity

IF 1.6 3区医学 Q2 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY

Language Cognition and Neuroscience Pub Date : 2023-05-03 DOI:10.1080/23273798.2023.2203507

Jennifer Lewendon, J. Britton, Stephen Politzer-Ahles

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Abstract

ABSTRACT The Phonological Mapping Negativity (PMN) is an event-related potential component thought to index pre-lexical phonological processing. The response has long been considered distinct from the temporally-proximate Mismatch Negativity (MMN) – a distinction that primarily rests on the assumption that the PMN, unlike the MMN, cannot be elicited in inattentive contexts, thus implying differing underlying auditory-cortex mechanisms. Despite this, no study to date has established whether elicitation of an inattentive PMN response is possible. Here, we tested this assumption in two experiments during which participants heard phonological mismatches whilst engaging in a distractor task (experiment 1) or watching a film (experiment 2). Our results showed no consistent evidence for an inattentive PMN. Though attention may indeed serve to distinguish the two components, our results highlight consistent discrepancies in the temporal, topographical, and functional characteristics of the PMN that undermine efforts to establish its significance in the electrophysiological timeline of speech processing.

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MMN的另一个名字?探索语音映射(错配)否定的自主性

语音映射负性（PMN）是一种与事件相关的潜在成分，被认为是词汇前语音处理的指标。长期以来，这种反应一直被认为与时间上接近的不匹配负性（MMN）不同——这种区别主要基于这样一种假设，即与MMN不同，PMN不能在不注意的环境中引发，从而意味着不同的潜在听觉皮层机制。尽管如此，迄今为止还没有任何研究确定是否有可能引发注意力不集中的PMN反应。在这里，我们在两个实验中测试了这一假设，在这两个实验期间，参与者在进行分心任务（实验1）或观看电影（实验2）时听到了语音错配。我们的研究结果没有显示出注意力不集中的PMN的一致证据。尽管注意力可能确实有助于区分这两个成分，但我们的研究结果强调了PMN在时间、地形和功能特征方面的一致差异，这些差异破坏了建立其在语音处理电生理时间轴中意义的努力。

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来源期刊

Language Cognition and Neuroscience AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY-BEHAVIORAL SCIENCES

CiteScore

4.50

自引率

13.00%

发文量

期刊介绍： Language, Cognition and Neuroscience (formerly titled Language and Cognitive Processes) publishes high-quality papers taking an interdisciplinary approach to the study of brain and language, and promotes studies that integrate cognitive theoretical accounts of language and its neural bases. We publish both high quality, theoretically-motivated cognitive behavioural studies of language function, and papers which integrate cognitive theoretical accounts of language with its neurobiological foundations. The study of language function from a cognitive neuroscience perspective has attracted intensive research interest over the last 20 years, and the development of neuroscience methodologies has significantly broadened the empirical scope of all language research. Both hemodynamic imaging and electrophysiological approaches provide new perspectives on the representation and processing of language, and place important constraints on the development of theoretical accounts of language function and its neurobiological context.