Is brain training backed by science? Yes. Cognitive training has become the subject of thousands of peer-reviewed studies, giving researchers a far deeper understanding of how cognition changes, adapts, and responds to experience. Researchers continue to study which approaches work best, for whom, and under what conditions, but it's clear that what was once a niche area of research has become a rapidly expanding field of scientific inquiry.
Advances in neuroscience, digital technologies, and our understanding of neuroplasticity have transformed how researchers study cognition. Scientists now have a deeper understanding of attention, memory, executive function, and healthy aging. Larger datasets, new research tools, and collaborations across neuroscience, psychology, medicine, engineering, and computer science have expanded both the scale of cognitive research and the questions researchers can ask.
The scientific literature reflects that progress. A PubMed search for studies containing the terms "cognitive training" or "brain training" illustrates how rapidly the field has grown. In 2000, just four studies matching those terms were published. By 2010, that number had grown to 85. It reached 302 in 2015, 545 in 2020, and 866 in 2025. By the middle of 2026, more than 660 additional studies had already been published.
More studies don't automatically mean every question has been answered. They do mean researchers have a much stronger foundation for understanding what cognitive training can and cannot do than they did twenty years ago.
This growth reflects a fundamental shift in how researchers study cognition. Digital research now makes it possible to conduct studies across larger participant populations, over longer periods of time, and with greater precision than many traditional laboratory approaches. As the science has matured, researchers have an opportunity to ask more sophisticated questions about how cognitive training works, who benefits, and under what conditions.
Lumosity has contributed to that progress through collaborations across academia, healthcare, and industry. Together, these collaborations have supported more than 175 peer-reviewed publications, 200 research collaborations, 40 active studies, and 1.5 million research participants, helping expand our understanding of cognition and the effects of cognitive training.
Better Tools for Better Research
As the science of cognitive training has matured, so have the questions researchers are asking.
Early studies often focused on whether cognitive training could influence cognitive performance at all. Today, researchers are investigating much more nuanced questions: Which approaches work best? Who benefits most? How do effects change over time? How can cognitive training complement other interventions? And what can these studies teach us about how cognition changes across the lifespan?
Answering those questions requires more than larger studies. It requires the ability to measure cognition consistently, follow participants over time, and conduct research across broader and more representative populations.
At Lumosity, we've seen those needs evolve firsthand through more than two decades of collaboration with researchers around the world. That's why we created the Lumosity Research Platform. We’re bringing together cognitive assessments, digital interventions, participant recruitment, and real-world data into one platform, so researchers can more easily study cognitive training and continue advancing the field.
From Discovery to Clinical Research
One of the most exciting developments in cognitive science is the growing connection between research and clinical care.
Studies involving healthy populations have deepened our understanding of how attention, memory, executive function, and learning change throughout life. That foundation is helping researchers investigate conditions such as ADHD, Alzheimer's disease, Parkinson's disease, depression, autism, and traumatic brain injury.
Today, researchers are evaluating digital cognitive assessments, software-based interventions, and digital biomarkers in randomized controlled trials. The emergence of FDA-cleared digital therapeutics demonstrates how decades of cognitive research are beginning to translate into new approaches for patient care.
As the field continues to evolve, researchers have new opportunities to better understand cognitive change, develop evidence-based interventions, and improve brain health across the lifespan.
Looking Ahead
Over the past two decades, the evidence supporting cognitive training has grown substantially, and the tools available to researchers have evolved alongside it. Researchers can now ask more sophisticated questions and study cognitive training at greater scale, with greater precision, and over longer periods of time than ever before.
The science of cognitive training has never been stronger. What once was a promising area of research has become a rapidly evolving field, creating new opportunities to better understand how cognition changes throughout life and how cognitive training may contribute to brain health.
As researchers continue asking more ambitious questions, we're committed to building the tools that help make those discoveries possible. Learn more about the Lumosity Research Platform and our collaborations with researchers around the world.