Apraxia of Speech: Perceptual Analysis of Trisyllabic Word Productions Across Repeated Sampling Occasions Purpose Early apraxia of speech (AOS) research has characterized errors as being variable, resulting in a number of different error types being produced on repeated productions of the same stimuli. Conversely, recent research has uncovered greater consistency in errors, but there are limited data examining sound errors over time (more ... Supplement Article
Supplement Article  |   May 01, 2012
Apraxia of Speech: Perceptual Analysis of Trisyllabic Word Productions Across Repeated Sampling Occasions
 
Author Affiliations & Notes
  • Shannon C. Mauszycki
    VA Salt Lake City Healthcare System, Salt Lake City, UT
    University of Utah, Salt Lake City
  • Julie L. Wambaugh
    VA Salt Lake City Healthcare System, Salt Lake City, UT
    University of Utah, Salt Lake City
  • Rosalea M. Cameron
    VA Salt Lake City Healthcare System, Salt Lake City, UT
    University of Utah, Salt Lake City
  • Correspondence to Shannon C. Mauszycki: Passbrat@aol.com
  • Editor: Swathi Kiran
    Editor: Swathi Kiran×
  • Associate Editor: Joseph Duffy
    Associate Editor: Joseph Duffy×
Article Information
Speech, Voice & Prosodic Disorders / Apraxia of Speech & Childhood Apraxia of Speech / Language Disorders / Aphasia / Speech, Voice & Prosody / Supplement: Select Papers From the 41st Clinical Aphasiology Conference
Supplement Article   |   May 01, 2012
Apraxia of Speech: Perceptual Analysis of Trisyllabic Word Productions Across Repeated Sampling Occasions
American Journal of Speech-Language Pathology, May 2012, Vol. 21, S28-S37. doi:10.1044/1058-0360(2011/11-0094)
History: Received August 14, 2011 , Accepted December 7, 2011
 
American Journal of Speech-Language Pathology, May 2012, Vol. 21, S28-S37. doi:10.1044/1058-0360(2011/11-0094)
History: Received August 14, 2011; Accepted December 7, 2011
Web of Science® Times Cited: 2

Purpose Early apraxia of speech (AOS) research has characterized errors as being variable, resulting in a number of different error types being produced on repeated productions of the same stimuli. Conversely, recent research has uncovered greater consistency in errors, but there are limited data examining sound errors over time (more than one occasion). Furthermore, the influence of conditions of stimulus presentation (blocked vs. random) on sound errors remains uncertain. The purpose of this investigation was to examine the effects of repeated sampling and conditions of stimulus presentation on speech sound errors for 11 speakers with AOS/aphasia.

Method Trisyllabic words consisting of 7 target phonemes in the initial position served as stimuli. On 3 occasions, stimuli were elicited under 2 conditions: blocked (by phoneme) and randomized presentation. Speech productions were analyzed via narrow phonetic transcription.

Results Findings revealed a similar overall mean percentage of errors in both conditions and across sampling occasions. Distortions were the dominant error type.

Conclusion There was no obvious pattern of responding across sampling occasions or conditions of stimulus presentation. The dominant error type differed among target phonemes, but there appeared to be some degree of consistency in the error types produced for the majority of target phonemes.

Acknowledgment
This research was supported in part by the Department of Veterans Affairs' Rehabilitation Research and Development Service.
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