ABSTRACT

The purpose of this review is to provide an accessible exploration of key considerations of lateralization in speech and non-speech perception using clear and defined language. From these considerations, the primary arguments for each side of the linguistics versus acoustics debate are outlined and explored in context of emerging integrative theories. This theoretical approach entails a perspective that linguistic and acoustic features differentially contribute to leftward bias, depending on the given context. Such contextual factors include stimulus parameters and variables of stimulus presentation (e.g., noise/silence and monaural/binaural) and variances in individuals (sex, handedness, age, and behavioural ability). Discussion of these factors and their interaction is also aimed towards providing an outline of variables that require consideration when developing and reviewing methodology of acoustic and linguistic processing laterality studies. Thus, there are three primary aims in the present paper: (1) to provide the reader with key theoretical perspectives from the acoustics/linguistics debate and a synthesis of the two viewpoints, (2) to highlight key caveats for generalizing findings regarding predominant models of speech laterality, and (3) to provide a practical guide for methodological control using predominant behavioural measures (i.e., gap detection and dichotic listening tasks) and/or neurophysiological measures (i.e., mismatch negativity) of speech laterality.

摘要

本综述的目的是使用清晰明确的语言对语音和非语音感知中的偏侧化的关键考虑因素进行可访问的探索。基于这些考虑，语言学与声学辩论每一方的主要论点都在新兴的整合理论的背景下进行了概述和探讨。这种理论方法需要这样一种观点，即根据给定的上下文，语言和声学特征对向左偏差的贡献不同。此类上下文因素包括刺激参数和刺激呈现变量（例如，噪音/静音和单耳/双耳）和个体差异（性别、惯用手、年龄和行为能力）。对这些因素及其相互作用的讨论还旨在提供在开发和审查声学和语言处理偏侧性研究方法时需要考虑的变量的概述。因此，本文有三个主要目标：(1) 为读者提供声学/语言学辩论的关键理论观点以及两种观点的综合，(2) 强调概括有关主要模型的发现的关键注意事项言语偏侧性，以及 (3) 为使用主要行为测量（即间隙检测和二元听力任务）和/或言语偏侧性的神经生理学测量（即失配负性）提供方法学控制的实用指南。