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This paper is in the following e-collection/theme issue:

Usability and Technology Use Studies with Elder Subjects (503) Web-based and Mobile Health Interventions (5828) Human Factors and Usability Case Studies (1299) Dementia and Cognitive Decline (876) Formative Evaluation of Digital Health Interventions (5093) Mobile Devices and Apps for Seniors and Healthy Aging (398) Chatbots and Conversational Agents (1164) Artificial Intelligence (4718) Voice Assistants (71)

Published on in Vol 8 (2025)

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/76489, first published .
Child-friendly robot on a table interacting with a person

A Hybrid Rule- and Large Language Model–Based Embodied Voice Assistant (GRACE) for Cognitive Stimulation in Older Adults: Usability Study Assessing Technical Feasibility, Technology Acceptance, and Working Alliance

A Hybrid Rule- and Large Language Model–Based Embodied Voice Assistant (GRACE) for Cognitive Stimulation in Older Adults: Usability Study Assessing Technical Feasibility, Technology Acceptance, and Working Alliance

Authors of this article:

Rasita Vinay1, 2 Author Orcid Image ;   Ekaterina Uetova3 Author Orcid Image ;   Nora Camilla Tommila2 Author Orcid Image ;   Nikola Biller-Andorno1 Author Orcid Image ;   Tobias Kowatsch2, 4, 5 Author Orcid Image
Article Authors Cited by (6) Tweetations Metrics

Journals

  1. Walliser F, Biller-Andorno N, Kowatsch T, Vinay R. Evaluating the GRACE voice assistant for dementia care among caregivers and healthcare professionals: An interview study. DIGITAL HEALTH 2026;12 View
  2. Shenoi A, Li T, Jabir A, Pitkethly A, Fleisch E, Kowatsch T, Mair J. Structured Large Language Model Workflows for Motivational Interviewing in Health Behavior Change: Proof-of-Concept Study. JMIR Formative Research 2026;10:e94036 View
  3. Yiannis T, Macpherson H, Scott D, Callisaya M, Gourlay C, Maddison R, Gvozdenko E, Jansons P. Cognitive Reablement Using Digital Voice Assistants for People Living With Dementia or Mild Cognitive Impairment: A Co‐Design Study. Health Expectations 2026;29(4) View

Conference Proceedings

  1. Moser F, Vinay R, Kowatsch T. Proceedings of the 8th ACM Conference on Conversational User Interfaces. STELLA: An Open-Source Platform for Auditable Voice-First Conversational Health Coaching Agents View
  2. Li Y, Saragih I, Fick D, Sundar S, Abdullah S. Proceedings of the 8th ACM Conference on Conversational User Interfaces. A Real-Time Voice Agent for Delivering Individual Cognitive Stimulation Therapy to Persons Living with Dementia View
  3. Bezerra M, Loureiro M, Machado F, Rocon E, Frizera A. 2026 IEEE 5th International Conference on Intelligent Reality (ICIR). Multimodal Navigation Assistance for Older Adults: Combining Generative AI and Augmented Reality in a Robotic Walker View