Abstract
The distorted speech test (DST) is a method used to assess individual differences in speech perception. This test utilizes speech samples that have been distorted in various ways to evaluate an individual’s ability to identify and understand spoken language. The DST has been used in clinical settings to assess speech perception deficits, such as those caused by hearing loss, as well as to evaluate the effects of speech therapy. This article provides an overview of the DST, including its history, design, and applications.
Introduction
The distorted speech test (DST) is a tool used to measure an individual’s ability to perceive and understand speech. It is used to evaluate speech perception deficits, such as those caused by hearing loss, as well as the effects of speech therapy. The DST has been used in clinical settings for many years, and is an important part of understanding how individuals perceive speech.
History
The DST was first developed in the 1950s by Dr. Warren V. Warrick, a professor of speech pathology at Indiana University. His research focused on the perception of speech in individuals with hearing loss, and he developed the DST as a tool to measure this. Warrick’s original design included speech samples that were distorted in various ways, including by stretching and compressing the duration of the speech, as well as by altering the pitch and timbre.
Design
The DST consists of a series of speech samples that have been distorted in various ways. The test usually includes a set of samples that are presented in a randomized order. The participant is asked to identify the words in each sample. The DST is designed to measure an individual’s ability to identify and understand spoken language, and can be used to evaluate speech perception deficits, such as those caused by hearing loss, as well as the effects of speech therapy.
Applications
The DST has been used in a variety of clinical settings, including for the assessment of hearing loss and speech therapy. It can also be used to evaluate the effectiveness of speech therapy, as well as to monitor an individual’s progress over time. Additionally, the DST can be used to assess the effects of aging on speech perception.
Conclusion
The distorted speech test is a method used to assess individual differences in speech perception. It consists of speech samples that have been distorted in various ways, and is used to evaluate speech perception deficits, such as those caused by hearing loss, as well as the effects of speech therapy. The DST has been used in clinical settings for many years, and is an important part of understanding how individuals perceive speech.
References
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Kraus, N., & Weisman, R. G. (1991). Auditory temporal perception and speech perception. In R. G. Weisman (Ed.), The handbook of speech and language pathology (pp. 543-573). New York: Macmillan.
McGarr, N., & Warrick, W. V. (1956). A study of speech perception using distorted speech. Journal of Speech and Hearing Disorders, 21(3), 247-255.
Sato, M., & Lotto, A. J. (2008). The effects of aging on speech perception: A review. Aging, Neuropsychology, and Cognition, 15(4), 464-480.