Bold claim: playing a simple video game can calm the brain and dull traumatic memories. And this is where the conversation gets interesting: the method may not just be a novelty, but a meaningful step in PTSD care. Here’s the rewritten, expanded take on the original study and its implications.
New approach, clear purpose
Researchers investigated a brief, imagery-based intervention aimed at reducing intrusive trauma memories—those vivid, unwanted images that flash into the mind without warning. The technique, called Imagery Competing Task Intervention (ICTI), uses a mental exercise paired with a visual task to compete with the brain’s trauma imagery. It was developed at Uppsala University in Sweden, with collaboration from P1vital, and tested in partnerships involving the University of Cambridge and the University of Oxford.
What intrusive memories look like
Intrusive memories (a hallmark of PTSD) are involuntary, persistent recollections that can surface as sudden visual flashes of a traumatic event. Even a single fleeting image can commandeer attention and trigger a wave of distress. Lead researcher Emily Holmes explains that weakening the sensory, image-based core of these memories can lead to fewer distressing flashbacks.
Who participated and how the study was run
The trial focused on healthcare workers who had faced traumatic experiences during the COVID-19 pandemic. Participants were randomly assigned to one of three groups:
- ICTI: the mental-imagery training combined with Tetris gameplay
- Music: listening to classical music
- Treatment as usual: standard care without the new intervention
Key findings
ICTI produced a substantial drop in intrusive memories—from an average of 14 per week at baseline to about 1 per week after four weeks, a tenfold reduction compared with the other groups. Six months later, roughly 70% of those who received ICTI reported no intrusive memories.
How the treatment works in practice
The central tool is the video game Tetris, where players rotate blocks to fit them into a grid. In the study’s first phase, participants briefly recalled their trauma without detailing it. They then learned a mental-rotation skill (visualizing and manipulating objects in the mind) and applied it while playing Tetris, but at a slower pace, in sessions lasting around 20 minutes. The core idea is to occupy the brain’s visuospatial processing areas, competing with the vivid flashbacks to reduce their vividness, emotional impact, and frequency.
Broader benefits beyond intrusive memories
Beyond lowering intrusive imagery, ICTI appeared to ease overall PTSD symptoms. Because intrusive memories can drive other PTSD-related distress, reducing them may contribute to improvements in anxiety, depression, and daily functioning. By the fourth week, improvements in these broader domains were observed across participants, regardless of starting PTSD severity.
What this could mean in practical terms
If a brief, non-invasive intervention can meaningfully cut intrusive memories and modestly improve broader mental health, it could become a practical option for busy professionals and others struggling with trauma-related distress. The approach is designed to be gentle, brief, and easy to integrate into daily life, focusing on mental imagery rather than verbal processing.
Controversial angles and open questions
- Is the benefit primarily due to the structured, time-limited cognitive task, or to the specific use of a visuospatial distraction like Tetris? Could other visuospatial games yield similar results?
- How durable are the effects across different trauma types beyond healthcare workers and the COVID-19 context?
- Might there be individuals for whom this approach is less effective or even counterproductive, depending on the nature of the trauma or existing cognitive patterns?
Questions for readers
What are your thoughts on using a video game as part of trauma care? Do you see this as a promising addition to traditional therapies, or would you want stronger evidence before embracing it? Share your perspectives in the comments: would you try ICTI yourself, or would you prefer a more conventional therapeutic route?”}
