It’s easy to think that how we feel about our brain—our memory, focus, or mental sharpness—is just a reflection of reality. But a growing body of research shows otherwise. In fact, how we perceive our cognitive abilities can have a major impact on our mental wellbeing—especially for those living with depression or post-traumatic stress disorder (PTSD).
The Hidden Impact of Negative Self-Perception
A new study published in Neuropsychology has revealed that many people with depression or PTSD tend to significantly underestimate their cognitive abilities. This distorted self-view is known as negative metacognitive bias—and it’s more than just a confidence issue.
Researchers found that this pattern of self-doubt is closely linked with the severity of depression and PTSD symptoms. In other words, the worse people feel about their thinking skills, the more intense their emotional struggles may become. This creates a harmful cycle: low self-belief feeds poor mental health, which in turn reinforces self-doubt.
But there’s good news.
Cognitive Training Can Break the Cycle
The study, based on a clinical trial involving veterans with cognitive complaints, showed that both targeted brain training and engaging mental games like puzzles or memory tasks led to meaningful improvements—not just in how participants felt about their brain, but in their overall mental health.
What changed wasn’t just their test scores, but something even more powerful: their belief in their own cognitive abilities.
Participants who received positive feedback during training—like progress scores or in-game rewards—began to view themselves as more capable. And the more their self-perception improved, the more their symptoms of depression and PTSD decreased. Remarkably, these improvements lasted for at least three months after the training ended.
How Brainfit can help
At Brainfit, we believe that your brain can grow stronger at any age—but to truly thrive, it’s not just about what your brain can do, it’s about what you believe it can do.
This research reinforces what we’ve seen for years: confidence is critical to brain health. When people feel empowered to engage with their brain, to stretch it, train it, and challenge it in safe and supportive ways, real transformation happens. That’s why our classes, courses, and tools aren’t just about memory exercises—they’re about building belief. About reminding people that they’re not “losing it,” they’re learning to reconnect.
Start Where You Are
You don’t need to be a neuroscientist—or wait until symptoms worsen—to start rebuilding trust in your brain. Whether it’s solving a puzzle, taking a Brainfit course, or practicing focused attention exercises, every small win matters. These moments of clarity and confidence add up, creating positive momentum that supports both emotional wellbeing and cognitive resilience.
If you’ve ever thought, “My brain just doesn’t work like it used to,” this study is a powerful reminder: you’re probably doing better than you think—and you can get even stronger.
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