Speech and communication in Parkinson’s disease: a cross-sectional exploratory study in the United Kingdom

Maxwell S Barnish (Corresponding Author), Simon M.C. Horton, Zoe R Butterfint, Allan B Clark, Rachel A Atkinson, Katherine H.O. Deane

Research output: Contribution to journalArticle

3 Citations (Scopus)
4 Downloads (Pure)

Abstract

Objective: To assess associations between cognitive status, intelligibility, acoustics and functional communication in PD.
Design: Cross-sectional exploratory study of functional communication, including a within-participants experimental design for listener assessment
Setting: A major academic medical centre in the East of England, United Kingdom.
Participants: Questionnaire data were assessed for 45 people with Parkinson’s disease (PD) who had self-reported speech or communication difficulties and did not have clinical dementia. Acoustic and listener analyses were conducted on read and conversational speech for 20 people with PD and 20 familiar conversation partner (CP) controls without speech, language or cognitive difficulties.
Main outcome measures: Functional communication assessed by the Communicative Participation Item Bank (CPIB) and Communicative Effectiveness Survey (CES).
Results: People with PD had lower intelligibility than controls for both the read (mean difference 13.7%, p=0.009) and conversational (mean difference 16.2%, p=0.04) sentences. Intensity and pause were statistically significant predictors of intelligibility in read sentences. Listeners were less accurate identifying the intended emotion in the speech of people with PD (14.8% point difference across conditions, p=0.02) and this was associated with worse speaker cognitive status (16.7% point difference, p=0.04). Cognitive status was a significant predictor of functional communication using CPIB (F=8.99, p=0.005, η2 = 0.15) but not CES. Intelligibility in conversation sentences was a statistically significant predictor of CPIB (F=4.96, p=0.04, η2 = 0.19) and CES (F=13.65, p=0.002, η2 = 0.43). Read sentence intelligibility was not a significant predictor of either outcome.
Conclusions: Cognitive status was an important predictor of functional communication – the role of intelligibility was modest and limited to conversational and not read speech. Our results highlight the importance of
focusing on functional communication as well as physical speech impairment in Speech and Language Therapy (SLT) for PD. Our results could inform future trials of SLT techniques for PD.
Original languageEnglish
Article numbere014642
JournalBMJ Open
Volume7
DOIs
Publication statusPublished - May 2017

Fingerprint

Parkinson Disease
Cross-Sectional Studies
Communication
Language Therapy
Speech Therapy
Acoustics
United Kingdom
England
Dementia
Emotions
Research Design
Language
Outcome Assessment (Health Care)
Surveys and Questionnaires

Cite this

Barnish, M. S., Horton, S. M. C., Butterfint, Z. R., Clark, A. B., Atkinson, R. A., & Deane, K. H. O. (2017). Speech and communication in Parkinson’s disease: a cross-sectional exploratory study in the United Kingdom. BMJ Open, 7, [e014642]. https://doi.org/10.1136/bmjopen-2016-014642

Speech and communication in Parkinson’s disease : a cross-sectional exploratory study in the United Kingdom. / Barnish, Maxwell S (Corresponding Author); Horton, Simon M.C. ; Butterfint, Zoe R; Clark, Allan B; Atkinson, Rachel A; Deane, Katherine H.O. .

In: BMJ Open, Vol. 7, e014642, 05.2017.

Research output: Contribution to journalArticle

Barnish, MS, Horton, SMC, Butterfint, ZR, Clark, AB, Atkinson, RA & Deane, KHO 2017, 'Speech and communication in Parkinson’s disease: a cross-sectional exploratory study in the United Kingdom' BMJ Open, vol. 7, e014642. https://doi.org/10.1136/bmjopen-2016-014642
Barnish, Maxwell S ; Horton, Simon M.C. ; Butterfint, Zoe R ; Clark, Allan B ; Atkinson, Rachel A ; Deane, Katherine H.O. . / Speech and communication in Parkinson’s disease : a cross-sectional exploratory study in the United Kingdom. In: BMJ Open. 2017 ; Vol. 7.
@article{9489df2b5203440ba8c6dcf6aa1fa71c,
title = "Speech and communication in Parkinson’s disease: a cross-sectional exploratory study in the United Kingdom",
abstract = "Objective: To assess associations between cognitive status, intelligibility, acoustics and functional communication in PD.Design: Cross-sectional exploratory study of functional communication, including a within-participants experimental design for listener assessmentSetting: A major academic medical centre in the East of England, United Kingdom.Participants: Questionnaire data were assessed for 45 people with Parkinson’s disease (PD) who had self-reported speech or communication difficulties and did not have clinical dementia. Acoustic and listener analyses were conducted on read and conversational speech for 20 people with PD and 20 familiar conversation partner (CP) controls without speech, language or cognitive difficulties.Main outcome measures: Functional communication assessed by the Communicative Participation Item Bank (CPIB) and Communicative Effectiveness Survey (CES).Results: People with PD had lower intelligibility than controls for both the read (mean difference 13.7{\%}, p=0.009) and conversational (mean difference 16.2{\%}, p=0.04) sentences. Intensity and pause were statistically significant predictors of intelligibility in read sentences. Listeners were less accurate identifying the intended emotion in the speech of people with PD (14.8{\%} point difference across conditions, p=0.02) and this was associated with worse speaker cognitive status (16.7{\%} point difference, p=0.04). Cognitive status was a significant predictor of functional communication using CPIB (F=8.99, p=0.005, η2 = 0.15) but not CES. Intelligibility in conversation sentences was a statistically significant predictor of CPIB (F=4.96, p=0.04, η2 = 0.19) and CES (F=13.65, p=0.002, η2 = 0.43). Read sentence intelligibility was not a significant predictor of either outcome.Conclusions: Cognitive status was an important predictor of functional communication – the role of intelligibility was modest and limited to conversational and not read speech. Our results highlight the importance of focusing on functional communication as well as physical speech impairment in Speech and Language Therapy (SLT) for PD. Our results could inform future trials of SLT techniques for PD.",
author = "Barnish, {Maxwell S} and Horton, {Simon M.C.} and Butterfint, {Zoe R} and Clark, {Allan B} and Atkinson, {Rachel A} and Deane, {Katherine H.O.}",
note = "We acknowledge funding from a UEA PhD studentship to M.S.B.",
year = "2017",
month = "5",
doi = "10.1136/bmjopen-2016-014642",
language = "English",
volume = "7",
journal = "BMJ Open",
issn = "2044-6055",
publisher = "BMJ Publishing Group",

}

TY - JOUR

T1 - Speech and communication in Parkinson’s disease

T2 - a cross-sectional exploratory study in the United Kingdom

AU - Barnish, Maxwell S

AU - Horton, Simon M.C.

AU - Butterfint, Zoe R

AU - Clark, Allan B

AU - Atkinson, Rachel A

AU - Deane, Katherine H.O.

N1 - We acknowledge funding from a UEA PhD studentship to M.S.B.

PY - 2017/5

Y1 - 2017/5

N2 - Objective: To assess associations between cognitive status, intelligibility, acoustics and functional communication in PD.Design: Cross-sectional exploratory study of functional communication, including a within-participants experimental design for listener assessmentSetting: A major academic medical centre in the East of England, United Kingdom.Participants: Questionnaire data were assessed for 45 people with Parkinson’s disease (PD) who had self-reported speech or communication difficulties and did not have clinical dementia. Acoustic and listener analyses were conducted on read and conversational speech for 20 people with PD and 20 familiar conversation partner (CP) controls without speech, language or cognitive difficulties.Main outcome measures: Functional communication assessed by the Communicative Participation Item Bank (CPIB) and Communicative Effectiveness Survey (CES).Results: People with PD had lower intelligibility than controls for both the read (mean difference 13.7%, p=0.009) and conversational (mean difference 16.2%, p=0.04) sentences. Intensity and pause were statistically significant predictors of intelligibility in read sentences. Listeners were less accurate identifying the intended emotion in the speech of people with PD (14.8% point difference across conditions, p=0.02) and this was associated with worse speaker cognitive status (16.7% point difference, p=0.04). Cognitive status was a significant predictor of functional communication using CPIB (F=8.99, p=0.005, η2 = 0.15) but not CES. Intelligibility in conversation sentences was a statistically significant predictor of CPIB (F=4.96, p=0.04, η2 = 0.19) and CES (F=13.65, p=0.002, η2 = 0.43). Read sentence intelligibility was not a significant predictor of either outcome.Conclusions: Cognitive status was an important predictor of functional communication – the role of intelligibility was modest and limited to conversational and not read speech. Our results highlight the importance of focusing on functional communication as well as physical speech impairment in Speech and Language Therapy (SLT) for PD. Our results could inform future trials of SLT techniques for PD.

AB - Objective: To assess associations between cognitive status, intelligibility, acoustics and functional communication in PD.Design: Cross-sectional exploratory study of functional communication, including a within-participants experimental design for listener assessmentSetting: A major academic medical centre in the East of England, United Kingdom.Participants: Questionnaire data were assessed for 45 people with Parkinson’s disease (PD) who had self-reported speech or communication difficulties and did not have clinical dementia. Acoustic and listener analyses were conducted on read and conversational speech for 20 people with PD and 20 familiar conversation partner (CP) controls without speech, language or cognitive difficulties.Main outcome measures: Functional communication assessed by the Communicative Participation Item Bank (CPIB) and Communicative Effectiveness Survey (CES).Results: People with PD had lower intelligibility than controls for both the read (mean difference 13.7%, p=0.009) and conversational (mean difference 16.2%, p=0.04) sentences. Intensity and pause were statistically significant predictors of intelligibility in read sentences. Listeners were less accurate identifying the intended emotion in the speech of people with PD (14.8% point difference across conditions, p=0.02) and this was associated with worse speaker cognitive status (16.7% point difference, p=0.04). Cognitive status was a significant predictor of functional communication using CPIB (F=8.99, p=0.005, η2 = 0.15) but not CES. Intelligibility in conversation sentences was a statistically significant predictor of CPIB (F=4.96, p=0.04, η2 = 0.19) and CES (F=13.65, p=0.002, η2 = 0.43). Read sentence intelligibility was not a significant predictor of either outcome.Conclusions: Cognitive status was an important predictor of functional communication – the role of intelligibility was modest and limited to conversational and not read speech. Our results highlight the importance of focusing on functional communication as well as physical speech impairment in Speech and Language Therapy (SLT) for PD. Our results could inform future trials of SLT techniques for PD.

U2 - 10.1136/bmjopen-2016-014642

DO - 10.1136/bmjopen-2016-014642

M3 - Article

VL - 7

JO - BMJ Open

JF - BMJ Open

SN - 2044-6055

M1 - e014642

ER -