Evidence map›Paper›PMID 41632721›Full record

ArticleFolia phoniatrica et logopaedica : official organ of the International Association of Logopedics and Phoniatrics (IALP)2026

Perceptual Outcome Measures for Supplementing Transcription Intelligibility in Speakers with Parkinson's Disease and Mild Dysarthria.

Jordan L Manes, Kaila L Stipancic, Lily Westemeyer, Andrea Rohl, Jeremy D W Greenlee, Nandakumar Narayanan, Ergun Uc, Kris Tjaden

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In one paragraph

Article in Folia phoniatrica et logopaedica : official organ of the International Association of Logopedics and Phoniatrics (IALP), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Jordan L ManesDepartment of Communicative Disorders and Sciences, University at Buffalo, Buffalo, New York, USA, jlmanes@buffalo.edu.
Kaila L StipancicDepartment of Communicative Disorders and Sciences, University at Buffalo, Buffalo, New York, USA.
Lily WestemeyerDepartment of Neurosurgery, University of Iowa, Iowa City, Iowa, USA.
Andrea RohlDepartment of Neurosurgery, University of Iowa, Iowa City, Iowa, USA.
Jeremy D W GreenleeDepartment of Neurosurgery, University of Iowa, Iowa City, Iowa, USA.
Nandakumar NarayananDepartment of Neurosurgery, University of Iowa, Iowa City, Iowa, USA.
Ergun UcDepartment of Neurology, University of Iowa, Iowa City, Iowa, USA.
Kris TjadenDepartment of Communicative Disorders and Sciences, University at Buffalo, Buffalo, New York, USA.

Funding

Role of Subthalamic nucleus in Speech and Movement among people with Parkinson’s as Revealed by Intraoperative Recordings and Deep Brain StimulationR01DC017718 · NIDCD · UNIVERSITY OF IOWA · PI GREENLEE, JEREMY · 2020 to 2024
$3.1M
The Administrative Core of Prefrontal Cortex, Cognition, and Speech Symptoms in Parkinson’s disease (PRECIS-PD)P20NS123151 · NINDS · UNIVERSITY OF IOWA · PI NARAYANAN, NANDAKUMAR · 2021 to 2022
$890k
NIDCD NIH HHS R01 DC017718NINDS NIH HHS P20 NS123151
6 · The paper itself

Abstract

introductionIntelligibility is the gold-standard metric of speech function in dysarthria; however, intelligibility alone may not capture subtle speech impairments. This study evaluated the extent to which related, but distinct, perceptual metrics of listener effort, speech severity, and speech naturalness were sensitive to mild speech impairment in speakers with Parkinson's disease (PD), providing supplemental information to transcription intelligibility.

methodsSpeech samples were collected from 30 speakers with PD and 14 healthy controls. Listeners judged intelligibility using orthographic transcription and provided visual analog scale (VAS) judgments of listener effort, speech severity, and speech naturalness. A correlation analysis assessed the convergent validity between metrics. Linear mixed-effects analysis assessed differences between perceptual metrics.

resultsVAS ratings of listener effort were most strongly correlated with intelligibility, while speech naturalness had the weakest relationship to other perceptual measures and the poorest listener reliability. Transcription intelligibility scores were equivalently high for PD and control groups. VAS ratings of listener effort, speech severity, and speech naturalness were significantly lower than intelligibility scores across both groups.

conclusionFor speakers with mild PD, transcription intelligibility did not capture subtle speech deficits detected by VAS metrics. Supplemental perceptual metrics provided a fuller picture of the speech impairment in these individuals.

Indexed as

IntelligibilityListener effortParkinson’s diseaseSpeech naturalnessSpeech severity

Identifiers

PMID41632721
PMCPMC12871864

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.