The Application of Large Language Models in Mental Healthcare

A special issue of Healthcare (ISSN 2227-9032). This special issue belongs to the section "Artificial Intelligence in Healthcare".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 1014

Editor


E-Mail Website
Guest Editor
Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
Interests: natural language processing; health data science; multimodal learning; clinical decision support systems

Special Issue Information

Dear Colleagues,

Large language models (LLMs) are rapidly entering mental healthcare—supporting triage, risk assessment, clinical documentation, therapy co-pilots, and patient-facing guidance. Yet key questions remain about their safety, reliability, equity, governance, and measurable clinical value. 

In this Special Issue, we welcome original research and reviews on (i) safety science for LLMs in mental health (hazard taxonomies, red-teaming, alignment, guardrails, incident reporting); (ii) evaluation beyond accuracy (human-in-the-loop studies, clinician and service-user outcomes, cost-effectiveness, and workflow impact); (iii) methods for privacy-preserving and fair LLMs (de-identification, federated/edge models, bias/harms audits); (iv) applications across the care pathway (screening, symptom/functioning extraction, timeline building, decision support, crisis response); and (v) translation and regulation (governance frameworks, documentation standards, post-deployment monitoring). 

We particularly welcome studies with clinical collaborators, representative patient data, and the transparent release of code, prompts, and evaluation protocols. By bringing together technical, clinical, and ethical perspectives, the aim of this Issue is to shape practical, safe, and equitable LLM adoption in mental healthcare. 

Thank you for considering this invitation. We look forward to your contributions as we work together to advance the future of mental healthcare.

Dr. Tao Wang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Healthcare is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • large language model (LLM)
  • LLM safety
  • clinical evaluation
  • mental health informatics
  • machine learning
  • deep learning
  • AI in mental healthcare

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Other

19 pages, 1738 KB  
Systematic Review
Barriers and Facilitators to the Use of Large Language Model-Based Conversational Agents in Mental Healthcare: A Systematic Review
by Ravi Shankar, Amaevia Lim and Qian Xu
Healthcare 2026, 14(10), 1267; https://doi.org/10.3390/healthcare14101267 - 7 May 2026
Cited by 3 | Viewed by 558
Abstract
(1) Background/Objectives: Over one billion individuals globally live with mental health conditions, yet the treatment gap exceeds 75% in low- and middle-income countries. Large language model (LLM)-based conversational agents have emerged as a potentially scalable solution, though the evidence base remains nascent [...] Read more.
(1) Background/Objectives: Over one billion individuals globally live with mental health conditions, yet the treatment gap exceeds 75% in low- and middle-income countries. Large language model (LLM)-based conversational agents have emerged as a potentially scalable solution, though the evidence base remains nascent and largely pre-clinical. This review synthesises barriers and facilitators to their implementation in mental healthcare using the Consolidated Framework for Implementation Research (CFIR). (2) Methods: Eight databases were searched from January 2022 to January 2026. Study selection was managed using Covidence. Two reviewers independently screened, extracted, and appraised studies using the Mixed Methods Appraisal Tool. Directed content analysis guided by CFIR was used for synthesis. (3) Results: Twenty-seven studies (three RCTs, nine mixed methods, eight qualitative, four cross-sectional, three observational) comprising >22,000 participants across 12 countries met inclusion criteria. Five barrier domains (27 sub-themes) and four facilitator domains (22 sub-themes) were identified. Inadequate crisis detection (reported in 21/27 studies) and 24/7 availability (reported in 26/27 studies) are the most frequently reported barriers and facilitators, respectively. These figures represent study-level reporting frequencies, not population-level prevalence estimates. CFIR mapping revealed universal coverage for Knowledge and Beliefs (100%) and Patient Needs and Resources (96%) but critical gaps in the Process domain (Evaluating: 7%; Champions: 11%). (4) Conclusions: LLM-based conversational agents demonstrate substantial promise but present critical safety deficiencies. A tiered implementation framework, independent safety certification, and equity-sensitive design are recommended. Full article
(This article belongs to the Special Issue The Application of Large Language Models in Mental Healthcare)
Show Figures

Figure 1

Back to TopTop