Sensorimotor adaptation of voice fundamental frequency in Parkinson's disease
Publication Date
January 26, 2018
Authors
Defne Abur, Rosemary A. Lester Smith, Ayoub Daliri, Ashling A. Lupiani, et al
Volume
13
Issue
1
Pages
e0191839
DOI
https://dx.plos.org/10.1371/journal.pone.0191839
Publisher URL
http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0191839
Scopus
85041061927
Mendeley
http://www.mendeley.com/research/sensorimotor-adaptation-voice-fundamental-frequency-parkinsons-disease
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Mendeley | Further Information

{"title"=>"Sensorimotor adaptation of voice fundamental frequency in Parkinson’s disease", "type"=>"journal", "authors"=>[{"first_name"=>"Defne", "last_name"=>"Abur", "scopus_author_id"=>"56658732800"}, {"first_name"=>"Rosemary A.", "last_name"=>"Lester-Smith", "scopus_author_id"=>"57192160734"}, {"first_name"=>"Ayoub", "last_name"=>"Daliri", "scopus_author_id"=>"56436202400"}, {"first_name"=>"Ashling A.", "last_name"=>"Lupiani", "scopus_author_id"=>"57194534905"}, {"first_name"=>"Frank H.", "last_name"=>"Guenther", "scopus_author_id"=>"7003640507"}, {"first_name"=>"Cara E.", "last_name"=>"Stepp", "scopus_author_id"=>"35759791500"}], "year"=>2018, "source"=>"PLoS ONE", "identifiers"=>{"issn"=>"19326203", "doi"=>"10.1371/journal.pone.0191839", "sgr"=>"85041061927", "scopus"=>"2-s2.0-85041061927", "isbn"=>"1111111111", "pmid"=>"29373589", "pui"=>"620329755"}, "id"=>"06fb958b-9998-3940-bef6-5bc750e531ac", "abstract"=>"OBJECTIVE This study examined adaptive responses to auditory perturbation of fundamental frequency (fo) in speakers with Parkinson's disease (PD) and control speakers. METHOD Sixteen speakers with PD and nineteen control speakers produced sustained vowels while they received perturbed auditory feedback (i.e., fo shifted upward or downward). Speakers' pitch acuity was quantified using a just-noticeable-difference (JND) paradigm. Twelve listeners provided estimates of the speech intelligibility for speakers with PD. RESULTS Fifteen responses from each speaker group for each shift direction were included in analyses. While control speakers generally showed consistent adaptive responses opposing the perturbation, speakers with PD showed no compensation on average, with individual PD speakers showing highly variable responses. In the PD group, the degree of compensation was not significantly correlated with age, disease progression, pitch acuity, or intelligibility. CONCLUSIONS These findings indicate reduced adaptation to sustained fo perturbation and higher variability in PD compared to control participants. No significant differences were seen in pitch acuity between groups, suggesting that the fo adaptation deficit in PD is not the result of purely perceptual mechanisms. SIGNIFICANCE These results suggest there is an impairment in vocal motor control in PD. Building on these results, contributions can be made to developing targeted voice treatments for PD.", "link"=>"http://www.mendeley.com/research/sensorimotor-adaptation-voice-fundamental-frequency-parkinsons-disease", "reader_count"=>6, "reader_count_by_academic_status"=>{"Unspecified"=>1, "Researcher"=>1, "Student > Ph. D. Student"=>1, "Student > Postgraduate"=>2, "Student > Master"=>1}, "reader_count_by_user_role"=>{"Unspecified"=>1, "Researcher"=>1, "Student > Ph. D. Student"=>1, "Student > Postgraduate"=>2, "Student > Master"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>2, "Medicine and Dentistry"=>1, "Agricultural and Biological Sciences"=>1, "Linguistics"=>1, "Psychology"=>1}, "reader_count_by_subdiscipline"=>{"Medicine and Dentistry"=>{"Medicine and Dentistry"=>1}, "Psychology"=>{"Psychology"=>1}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>1}, "Linguistics"=>{"Linguistics"=>1}, "Unspecified"=>{"Unspecified"=>2}}, "group_count"=>0}

Scopus | Further Information

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