Work

Retrospective Hypomimia Rating via Mobile App: A Usability Study

Year: 2026

Type: book-chapter

Abstract: Hypomimia, a reduced facial expressiveness in Parkinson's disease, is clinically relevant yet difficult to rate consistently. We evaluated the usability of CAPtion, an iOS application that supports standardized, session-based retrospective hypomimia ratings from camera-based facial recordings, enabling structured scoring across multiple independent raters. Six Parkinson's specialists completed one predefined rating session and subsequently filled out the System Usability Scale. It achieved a mean SUS score of 91.7 (±6.8), indicating excellent usability and suitability for scaling to larger inter-rater variability studies.

Source: Studies in health technology and informatics

DOI: 10.3233/shti260589

Authors: Alexander Johannes Wiederhold, Lea Haidar, Christopher Gundler

Institution: University Medical Center Hamburg-Eppendorf

Language: English

Topic: Mobile Health and mHealth Applications

Subfield: General Health Professions

Field: Health Professions

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: hybrid

OpenAlex ID: W7162003444

FWCI:

Cites:

Cited by:

Related to: