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ERIC Number: EJ1421103
Record Type: Journal
Publication Date: 2024-Apr
Pages: 17
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1092-4388
EISSN: EISSN-1558-9102
Effects of Deep-Brain Stimulation on Speech: Perceptual and Acoustic Data
Yunjung Kim; Austin Thompson; Ignatius S. B. Nip
Journal of Speech, Language, and Hearing Research, v67 n4 p1090-1106 2024
Purpose: This study examined speech changes induced by deep-brain stimulation (DBS) in speakers with Parkinson's disease (PD) using a set of auditory-perceptual and acoustic measures. Method: Speech recordings from nine speakers with PD and DBS were compared between DBS-On and DBS-Off conditions using auditory-perceptual and acoustic analyses. Auditory-perceptual ratings included voice quality, articulation precision, prosody, speech intelligibility, and listening effort obtained from 44 listeners. Acoustic measures were made for voicing proportion, second formant frequency slope, vowel dispersion, articulation rate, and range of fundamental frequency and intensity. Results: No significant changes were found between DBS-On and DBS-Off for the five perceptual ratings. Four of six acoustic measures revealed significant differences between the two conditions. While articulation rate and acoustic vowel dispersion increased, voicing proportion and intensity range decreased from the DBS-Off to DBS-On condition. However, a visual examination of the data indicated that the statistical significance was mostly driven by a small number of participants, while the majority did not show a consistent pattern of such changes. Conclusions: Our data, in general, indicate no-to-minimal changes in speech production ensued from DBS stimulation. The findings are discussed with a focus on large interspeaker variability in PD in terms of their speech characteristics and the potential effects of DBS on speech.
American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: National Institutes of Health (NIH) (DHHS)
Authoring Institution: N/A
Identifiers - Location: California (San Diego); Florida
Grant or Contract Numbers: R01DC020468; F31DC020121