Just 10 sessions of computerized brain training can reduce dementia risk more than a decade later, according to research from the University of Florida (UF). The findings, published in JAMA Network Open in 2024, add to the evidence that cognitive training can have lasting protective effects.
The Research
Researchers led by Dr. Adam Woods at the UF Center for Cognitive Aging and Memory followed over 2,800 older adults (average age 74) from the Advanced Cognitive Training for Independent and Vital Elderly (ACTIVE) study. The study began in 1998. Participants were randomly assigned to one of three training groups or a control group. The training groups received 10 one-hour sessions over 5-6 weeks in either memory, reasoning, or speed-of-processing (useful field of view) training.
After 10 years, those who completed speed-of-processing training had a 29% lower risk of developing dementia compared to the control group. The effect was strongest for those who completed additional booster sessions. Memory and reasoning training did not show significant reductions in dementia risk. The study controlled for age, sex, education, baseline cognitive function, and health factors.
Speed-of-processing training involves exercises that improve the brain's ability to quickly interpret and respond to visual information. For example, identifying objects in the periphery while central vision is occupied. The training is adaptive—tasks become harder as performance improves.
Why It Matters
Dementia affects about 50 million people worldwide, and no cure exists. Preventive strategies are crucial. This study shows that a brief, low-cost intervention can have long-term benefits. The training targeted a specific cognitive skill that declines with age, and the benefits persisted over a decade. For both healthy adults and those with mild cognitive impairment, such training may be a practical way to build cognitive reserve.
What You Can Do
- Try speed-of-processing tasks: Look for brain training programs that include useful field of view exercises (like dual-tasks with peripheral stimuli).
- Stay consistent: The ACTIVE study showed booster sessions enhanced benefits. Aim for regular practice.
- Combine with other healthy habits: Exercise, sleep, and social engagement also support brain health.
Source: Google News: IQ & cognition
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