Department of Applied Health at Southern Illinois University Edwardsville, Southern Illinois University Edwardsville, Edwardsville, IL, USA.
Physiological Sciences Program at University of Arizona, University of Arizona, Tucson, AZ, USA.
Clin Linguist Phon. 2020;34(4):327-338. doi: 10.1080/02699206.2019.1652692. Epub 2019 Aug 28.
The concept of speech naturalness is used widely in clinic and research applications. Unfortunately, the lack of consistency in research methods means that comparing findings between studies is difficult at best. In order to better understand the state of research on speech naturalness in communication disorders and quantify these impressions, this study looks at publications from the last 18 years in a systematic manner. A literature search for the exact phrase "speech naturalness" of the PubMed/MEDLINE, EBSCO, and ASHAWire databases was conducted. Articles included in the review were studies of communication and communication disorders published between 1990 and the end of 2014, in English, and in a peer-reviewed journal. 63 articles were selected and coded using a coding sheet adapted from a prior systematic review on intelligibility and cleft palate. Speech naturalness is an object of study in many subfields of communication disorders. Several concerns were raised as a result of the review, including the reliability and validity of measures, inadequate definitions of terminology, lack of detail in method descriptions, and the need to address relationships between naturalness and other variables included in the studies. Future studies should more carefully report methods and operational definitions used and more studies examining the relationship between naturalness and other speech variables in a variety of communication disorders are greatly needed.
言语自然度的概念在临床和研究应用中被广泛使用。不幸的是，由于研究方法缺乏一致性，使得在研究之间进行结果比较变得非常困难。为了更好地了解言语自然度在交流障碍研究中的现状，并对这些印象进行量化，本研究以系统的方式对过去 18 年的文献进行了研究。通过对 PubMed/MEDLINE、EBSCO 和 ASHAWire 数据库中的“speech naturalness”这一确切短语进行了文献检索。本综述纳入的研究为 1990 年至 2014 年底期间以英语发表、经过同行评审的期刊中有关交流和交流障碍的研究。使用先前关于清晰度和腭裂的系统综述的编码表对 63 篇文章进行了编码。言语自然度是许多交流障碍亚领域的研究对象。由于本综述，出现了几个问题，包括测量的可靠性和有效性、术语定义不充分、方法描述缺乏细节以及需要解决自然度与研究中包含的其他变量之间的关系。未来的研究应该更仔细地报告所使用的方法和操作定义，并且非常需要更多研究来检验自然度与各种交流障碍中其他言语变量之间的关系。
