Is Lumosity Backed by Scientific Research?

Updated

Yes, but with important caveats. Lumosity's own research team, Lumos Labs, ran a randomized study of its brain training and published the results in a peer-reviewed journal. The study found that Lumosity users improved more than an active control group on several cognitive measures. However, the same published account flags meaningful limitations, and the company itself states that more research is needed to link improved assessment scores to everyday tasks. So the honest answer is: there is peer-reviewed evidence, but it is not the final word.

What the study actually did

Lumos Labs conducted a randomized study and published it in a peer-reviewed research journal. The design, as described by Lumosity:

  • Participants: 4,715 people completed the study.
  • Training group: Half trained on Lumosity five days per week, 15 minutes per day.
  • Control group: The other half did online crossword puzzles as an active control — meaning they were also doing a mentally engaging task, not nothing.

Using an active control is a stronger design than comparing against a waitlist, because it helps separate "brain training specifically" from "any stimulating activity."

What the study found

After 10 weeks, Lumosity users improved more than the crossword control group on Lumosity's assessments of:

  • Working memory
  • Short-term memory
  • Processing speed
  • Problem solving
  • Fluid reasoning
  • Overall cognitive function

These results are described by Lumosity as "promising."

The limitations you should weigh

Lumosity's own summary of the research is unusually candid about the weaknesses, and they matter for how much weight you give the findings:

Limitation Why it matters
~50% attrition in both groups Half of each group dropped out. High dropout can bias results if the people who stayed differ from those who left.
Risk of experimenter bias The researchers had an interest in the outcome, which can subtly influence results.
Risk of publication bias Positive findings are more likely to be published than null ones across the field.
Outcome measures are Lumosity's own assessments Improvement on the program's tests does not automatically mean improvement in daily life.

The most important caveat is the last one. Lumosity explicitly states that more research is needed to determine the connection between improved assessment scores and everyday tasks in participants' lives. In other words, the study supports gains on the measured cognitive tasks — not a proven transfer to real-world performance.

How to think about this if you're deciding

  • If you want peer-reviewed evidence that the training improves scores on cognitive tasks: Yes, that exists, and the study used a randomized, active-controlled design.
  • If you want proof that it makes you sharper at work, school, or daily life: That link is not established by this study, and Lumosity says so.
  • If you're evaluating the broader field: The limitations listed above (attrition, experimenter bias, publication bias) are general concerns in brain-training research, not unique to this study.

A reasonable position: treat Lumosity as a structured, engaging way to practice cognitive tasks, backed by one company-run randomized study with acknowledged weaknesses — not as a clinically proven route to general cognitive improvement.

For the full account, see Lumosity's own research summary on lumosity.com.