Assessing Perceptual Effects of Interactive Tasks
2 other identifiers
interventional
1,300
1 country
1
Brief Summary
In this study, we will evaluate how solo, naive listeners perceive the speech of people with amyotrophic lateral sclerosis (ALS) and age-matched speakers produced across interactive and non-interactive contexts with an unfamiliar, naive interlocutor.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Oct 2025
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 11, 2025
CompletedFirst Posted
Study publicly available on registry
February 14, 2025
CompletedStudy Start
First participant enrolled
October 17, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 28, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
February 28, 2029
February 12, 2026
February 1, 2026
3.4 years
February 11, 2025
February 11, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Intelligibility of recorded speech
Perceptual judgments will be provided by solo, naïve listeners who did not participate in the interactions. Listeners will hear recorded speech of PALS and age-matched speakers recorded across the different tasks and indicate what they heard. The score will be expressed in percent. The possible range is between 0-100%. The higher scores mean a better outcome.
one 20 minute session
Study Arms (1)
Listener Perception of Speech Produced in Different Task Settings
EXPERIMENTALListeners will hear recorded speech of PALS and age-matched speakers produced within interactive and non-interactive contexts and indicate what they heard.
Interventions
Listeners will hear recorded speech of PALS and age-matched speakers across interactive and non-interactive tasks and indicate what they heard by clicking one of four words displayed on the screen. Standard attention checks and minimum performance thresholds (Theodore, 2021) will be used to ensure that listeners are engaged and are able to provide meaningful perceptual judgments.
Eligibility Criteria
You may qualify if:
- passing the remote hearing screening
- having no known speech, language or neurological disorders per self-report
- being a native monolingual speaker of American English
- having no experience communicating with people with dysarthria
- being between the ages of 18 and 65.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Speech Core, Pennsylvania State University
University Park, Pennsylvania, 16802, United States
Related Publications (2)
Olmstead, A. J., Viswanathan, N., Cowan, T., & Yang, K. (2021). Phonetic adaptation in interlocutors with mismatched language backgrounds: A case for a phonetic synergy account. Journal of Phonetics, 87, 101054. . : . .
BACKGROUNDOlmstead AJ, Lee J, Viswanathan N. The Role of the Speaker, the Listener, and Their Joint Contributions During Communicative Interactions: A Tripartite View of Intelligibility in Individuals With Dysarthria. J Speech Lang Hear Res. 2020 Apr 27;63(4):1106-1114. doi: 10.1044/2020_JSLHR-19-00233. Epub 2020 Apr 17.
PMID: 32302251BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jimin Lee, Ph.D.
The Pennsylvania State University
- PRINCIPAL INVESTIGATOR
Navin Viswanathan, Ph.D.
The Pennsylvania State University
- PRINCIPAL INVESTIGATOR
Anne Olmstead, Ph.D.
The Pennsylvania State University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
February 11, 2025
First Posted
February 14, 2025
Study Start
October 17, 2025
Primary Completion (Estimated)
February 28, 2029
Study Completion (Estimated)
February 28, 2029
Last Updated
February 12, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP
- Time Frame
- Data will be shared after publication of the study.
- Access Criteria
- All deidentified data, metadata, and related tools will be freely available via Open Science Framework (OSF). The original audio files will be made available (for participants who consent) by request from researchers in the field to ensure responsible use.
The project will involve the collection of perceptual judgments and questionnaire data. All deidentified data will be shared through the Open Science Framework (osf.io). All scripts, protocols, procedures, and analyses will be shared along with the deidentified data to ensure that other researchers can verify and build on the presented results. All shared data will be made available in a format that is accessible by open-access software (e.g., R, Open Office, pdf reader). In addition, platform-specific scripts (e.g., experimental software LabVanced) will be shared with explanations so that they may be implemented across different software environments.