Welcome to MEXA

Accelerator Overview and Purpose

In August 2025, MEXA launched its first research Accelerator, a four-month program designed to support interdisciplinary teams exploring the potential of generative AI in mental health research. Built on the foundations of MEXA’s vibrant global network of over 700 members spanning 80 countries, the Accelerator brought together AI researchers, clinicians, ethicists, technologists, and lived-experience experts to co-create foundational research and de-risk proposals for a £3 million Wellcome Trust exclusive funding call focused on generative AI for anxiety, depression, and psychosis.

40 teams representing 16 countries and six continents were selected to embark on this journey. Eight projects were led by teams from low- and middle-income countries (LMICs), reflecting MEXA’s commitment to inclusivity and global equity.

Core Workshops and Learning Series

The program kicked off on August 7 with 140 participants in a vibrant virtual meeting, introducing teams to the schedule, expectations, and collaborative opportunities. From the outset, the Accelerator emphasized hands-on learning, mentorship, and co-creation. Over the following months, teams participated in a series of interactive workshops:

• Pilot Studies Workshop (21 August, 130 participants): Led by Stephen Schueller (UC Irvine) and Qian Yang (Cornell University), this session helped teams design pilot experiments and prioritize data collection strategies, laying the groundwork for methodologically robust projects.

• Lived Experience Workshop (4 September, 120 participants): Featured Rachel Wurzman (NeuroLivd), Jonathan Nelson (Pulverize the Stigma), Joy Muhia (LSHTM), and Shuranjeet Singh Takhar (Wellcome), who guided teams on authentic and ethical integration of lived experience into research design.

• Project, Code, and Data Management Workshop (15 September, 90 participants): Christopher Chambers (Cardiff University), Sara Villa (RCM Cooperative, OLS, DSxHE), and Sarah Gibson (The Turing Way) focused on registered reports, open science, collaborative tools, and reproducibility.

• Ethics Workshop (2 October, 100 participants): Ethics experts David Leslie (Alan Turing Institute), Alex John London (Carnegie Mellon University), Agata Ferretti (IBM Research), and Claudia Corradi (Nuffield Council on Bioethics) helped teams identify ethical considerations, refine strategies, and ensure research adhered to best practices for privacy, fairness, and participant safety.

Strengthening Final Proposals for Wellcome

To support project development, the Accelerator provided pilot seed funding, enabling teams to begin experimental work, refine methods, engage people with lived experience, develop ethics support, and prepare high-quality proposals. Partnerships with Google and Gooey.AI allowed teams to access technical guidance and industry insights to strengthen their research and de-risk experimental approaches.

An innovative draft submission and feedback process further enhanced proposal quality. Teams received detailed, constructive feedback from interdisciplinary experts that helped clarify scientific aims, strengthen methods, and integrate ethical and lived-experience perspectives ahead of final submission.

In-Person Forum at the Wellcome Trust

The Accelerator culminated in a two-day in-person forum at the Wellcome Trust in London (3–4 November), attended by ~100 delegates. This event showcased team progress, facilitated knowledge exchange, and reinforced the global MEXA community.

Participants engaged in clinic-style workshops on lived experience integration, regulatory pathways, ethics, and technical feasibility, led by experts from academia, industry, and funders. Team presentations, poster sessions, and interactive panels highlighted the diversity of approaches and the depth of co-produced research. A keynote by Jackie Hunter inspired teams to think boldly about the future of responsible AI in mental health.

Participant feedback consistently highlighted the value of mentorship, structured workshops, and the collaborative environment. Teams reported that the Accelerator experience strengthened their proposals and enhanced their understanding of interdisciplinary research. Key areas for continued support include ethics, lived-experience integration, translation, regulatory pathways, and commercialization.

Looking Ahead: A Lasting Global Research Community

As the Accelerator concludes, teams have submitted their final proposals to the Wellcome Trust. Beyond funding outcomes, the program has fostered a durable, global, and ethically grounded community poised to shape the future of generative AI in mental health. The MEXA Accelerator demonstrates what is possible when diverse expertise—from AI researchers to lived-experience experts—is brought together with purpose, resources, and mentorship. By enabling collaboration across continents, disciplines, and perspectives, it has established a robust pipeline of high-impact research and a network poised to transform the AI and mental health landscape for years to come. A heartfelt thank you goes to Neuromatch (MEXA’s owners!), Wellcome, our partners, and the participating teams for their openness and enthusiasm. Your support and contributions made this transformative program possible. The momentum built by the Accelerator promises continued innovation, collaboration, and impact at the intersection of AI and mental health.
Joana Guedes, Science Program Manager

This blog reflects the perspective of the author and does not constitute an endorsement by MEXA. We’re always looking for thoughtful, engaging voices to contribute to the MEXA blog! If you have insights to share at the intersection of mental health and artificial intelligence, we’d love to hear from you: Submit your blog here.

Harnessing AI to provide culturally sensitive, accessible mental health support across Africa.

Where It All Began

Growing up in Kenya, I saw how conversations around mental health were often silenced or misunderstood. Many people in my community viewed emotional struggles as weakness, spiritual battles, or private matters that shouldn’t be discussed. Professional therapy was inaccessible to most, too expensive, too far, or simply not available. These realities planted a question in my mind: how could technology make mental health support more accessible, relatable, and safe for everyone?

That question became the foundation for CogniXpert-AI, an AI-powered platform designed to provide culturally contextual, empathetic mental health guidance. It reflects our mission to reimagine how Africans can access mental health support.

Building CogniXpert-AI: Technology with a Human Heart

CogniXpert-AI is more than just a chatbot. It is a digital companion that listens, understands, and responds with empathy. Using natural language processing and evidence-based frameworks like cognitive behavioral therapy, it offers personalized, stigma-free mental health conversations.

Our goal is to make mental health care accessible, affordable, and culturally relevant. Every feature we design, from mindfulness exercises and well-being assessments to journaling tools, reflects local realities and user feedback. These tools help users pause, reflect, and take small, meaningful steps toward emotional well-being.

We believe empathy should be engineered, not as a replacement for human therapists, but as a bridge that connects people to care when they need it most.

Ethics and Empathy in AI Mental Health Tools

Working in mental health AI requires deep responsibility. Unlike typical tech products, the stakes are human emotion, trust, and safety. That is why our guiding principles are safety, transparency, and cultural respect.

Safety means the AI recognizes distress signals and connects users to local helplines rather than attempting to act as a human therapist. Transparency ensures users always know they are interacting with AI. Cultural respect shapes how the system interprets language, emotions, and values, ensuring responses are compassionate and relevant.

For example, emotional expressions can vary widely across cultures. What might sound casual in one language could carry deep meaning in another. By training our models on localized data and feedback, we make sure the system listens with cultural sensitivity, an essential part of ethical AI.

Why Cultural Context Matters

Mental health is personal, and cultural context shapes how people experience, describe, and cope with emotional distress. A one-size-fits-all digital tool designed for Western contexts often misses this nuance.

That is why we prioritize culturally contextual design. We work closely with psychologists, researchers, and community leaders to ensure our tools feel familiar, not foreign. This helps users express themselves authentically, reduces stigma, and fosters a sense of belonging in digital care environments.

Our mindfulness toolkit, mood journals, and self-assessment modules are designed with this philosophy in mind: to meet users where they are and help them feel seen, heard, and understood.

Looking Ahead

For us, building AI for mental health is not about replacing human care. It is about extending it. We envision a future where someone in a rural village or urban neighborhood can access compassionate support instantly, without judgment or barriers.

By combining AI innovation with cultural empathy, we aim to make that future real. Technology should heal, not alienate; listen, not dictate. Every conversation our tools facilitate brings us closer to a world where mental health care is inclusive, ethical, and human-centered.

MEXA Community

Eugene Gitonga Muiru is co-founder and CEO of CogniX LTD, building AI-powered tools that provide culturally sensitive and accessible mental health support across Africa. MEXA has given him a platform to engage with a global community reimagining mental health through collaboration and innovation. It aligns with his passion for using AI to expand access to inclusive and culturally aware mental health care.

This blog reflects the perspective of the author and does not constitute an endorsement by MEXA. We’re always looking for thoughtful, engaging voices to contribute to the MEXA blog! If you have insights to share at the intersection of mental health and artificial intelligence, we’d love to hear from you: Submit your blog here

Improve visibility, clarity, and accessibility for your research with this research-backed template

Poster sessions are a staple of academic conferences. Many of us know the feeling of walking into a poster hall and seeing rows of dense, text-heavy posters. They are often hard to read and even harder to remember. It can be hard for presenters too. Especially if they are working in a second language or having limited design experience.

That is why MEXA is excited to share an adaptable poster template that makes scientific posters clearer, more accessible, and more effective. This template builds on the work of the #BetterPoster movement and can be customized with your institution’s branding or used as-is with the MEXA branding.

Forty global teams in the MEXA Accelerator will be using the poster template to present their work at an in-person event. The Accelerator is a four month program advancing generative AI research for mental health in partnership with Neuromatch and funded by the Wellcome Trust. By sharing this poster template more broadly, we hope researchers across the MEXA community can also benefit.

Why rethink posters?

Mike Morrison, a psychologist and the creator of the #BetterPoster movement, saw posters as a bottleneck in science communication. He helped with the MEXA template. He explained, “Traditional posters often assume attendees will quietly read for ten minutes in a noisy, crowded hall. In reality, most people walk away overloaded by text and miss key findings. Posters should communicate the main point quickly and clearly, while inviting deeper discussion. That way, attendees can grasp the essential message at a glance and still explore the details if they want to learn more.”

The poster template uses simple language, clean layouts, and designs that encourage conversation. It was developed based on research including surveys of conference attendees, how people move through poster halls, and feedback from researchers who used the template. This approach helped identify what makes posters easy to read, engaging, and memorable.

Posters for global impact

Poster sessions play a unique role in science communication. They create space for conversations, discoveries, and networking across fields. By making posters easier to read and understand, we lower barriers to participation. More people can share their ideas and learn from each other.

This is especially important in global programs like the MEXA Accelerator. Researchers come from many cultures, disciplines, and languages. The poster template helps ensure ideas are communicated clearly, no matter who is presenting or viewing.

Bringing it into practice

Rieke Schäfer, a volunteer with Climatematch Academy and Neuromatch’s Impact Scholars Program, has helped work on this template and sees its value especially for early-career researchers. “For many of us, conferences can feel intimidating, especially when presenting research for the first time. This poster template gives researchers a way to present confidently and clearly. This poster template lets researchers present confidently and ensures science is accessible to everyone, no matter their background or language. It also supports inclusivity for those new to a field, reading or presenting in a second language, or anyone who finds traditional posters overwhelming.”

Rieke also notes that the template is flexible. It is a research-based starting point that anyone can adapt to their needs. While the posters come with MEXA branding, you can easily change the colors, swap in your own logos, and adjust the layout to fit your institution, project, or personal style. This makes it simple to create a poster that works for any conference or audience while still following evidence-based design principles.

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Download the template and start creating your poster today!

We would love to see how you use the template. Share your poster with us by tagging MEXA on LinkedIn or X or submit a story to the blog.

If you are interested in this topic or want to get involved, visit ScienceUX. They publish and curate research, free resources, and tools to help scientists speed up their work through better, evidence-based UX design.

Living with Complex PTSD: My Journey

I was diagnosed with Complex PTSD at 23 after self-referring myself to a women’s therapy centre. It was during these sessions that my therapist told me that I had experienced more trauma than the average person. Before the age of 18, I had experienced adverse childhood experiences in the form of sexual abuse, neglect, a teenage pregnancy, attempted suicide and then hospitalised for eight weeks.

The outcome of these experiences led me to become addicted to alcohol and smoking as a way to self-soothe from the difficult emotions I was struggling to process on my own.

PTSD and Complex PTSD: A Global Challenge

An estimated 3.9% of the world’s population has had post-traumatic stress disorder (PTSD) at some point in their lives, and 6.6 million people in the UK are expected to have or are living with PTSD or Complex PTSD.

I make up 1 in 4 out of 100 people who have PTSD in the UK.

Barriers to Support: Stigma, Cost, and Marginalisation

Following the diagnosis, I struggled with depression and had to research and learn how to manage my mental health to overcome the negative effects of my adverse childhood experiences, especially coming from a marginalised community where mental health is still seen as taboo and access to therapy is unaffordable. The average cost of six sessions of therapy in London is £600. As well as this, readily available mental health practices for those navigating PTSD are limited.

From my lived experiences, I knew the biggest challenges I had faced were a lack of knowledge about PTSD symptoms and how trauma manifests in our daily lives. At the most difficult moments of my mental health journey, I failed to recognise the symptoms of PTSD when they occurred, so that meant I didn’t know how to handle the symptoms without relying on negative coping mechanisms.

Building Aeli Health: The Vision

Hence, why I’m building Aeli Health, a user-to-user software solution for mental health professionals with a suite of generative AI tools to ‘Create, Assign, Analyse and Manage Crisis’. By combining human expertise with generative AI, I aim to create evidence-based tools, practices and agents to help clients take a proactive role in managing their mental health 24/7, including support with recovery from substance abuse and interventions during moments of crisis.

Based on the interviews I have conducted with 35 mental health practitioners, this model provides a structured way for therapists and publicly funded organisations to share best practices between sessions, creating a comprehensive and connected support system that enhances client care and improves the global mental health epidemic.

Joining the MEXA Community & My Path Forward

I’ve joined the MEXA community to connect and learn from individuals at the intersection of mental health and artificial intelligence. Building Aeli Health from lived experiences means I have gaps in my knowledge when it comes to the psychology of mental health, industry regulation, and policies that could deter product innovation. I’m also excited by the possibility of meeting potential team members, mentors, advisors or users of the platform.

In addition to joining the community, I am beginning an MSc in Psychology at City St George's in an effort to further my research in AI and mental health with an aim to build products that bridge the 168-hour gap between therapy sessions.

Winnie Akadjo is building a secure and accessible platform with a suite of generative AI tools for mental health professionals to bridge the 168-hour gap between therapy sessions. As a care-leaver with complex PTSD, Winnie's journey has deeply informed her understanding of resilience and the importance of mental well-being.