Speed Training May Delay Dementia: 20-Year Study Reveals Benefits

Could a simple computer game hold the key to staving off cognitive decline and Alzheimer’s disease? Emerging research suggests that targeted “brain training,” particularly focusing on processing speed, may significantly reduce the risk of dementia in older adults. The science emphasizes that it’s never too late to challenge your brain and potentially safeguard your cognitive health.

A Twenty-Year Study Reveals Promising Results

The findings stem from a twenty-year follow-up of the Advanced Cognitive Training for Independent and Vital Elderly (ACTIVE) study, initiated in 1998-99. This study, supported by the National Institutes of Health (NIH) and coordinated by Marilyn Albert of Johns Hopkins Medicine, evaluated the long-term benefits of three types of cognitive training – memory, reasoning, and processing speed – against a control group. Participants received up to ten 60-75 minute training sessions over five to six weeks. Half of the participants also received follow-up “booster” sessions 11 and 35 months after the initial training.

Did You Know? The ACTIVE study involved 2,802 adults and is considered the first and only study to assess the effects of cognitive training on the onset of dementia.

Analysis of insurance data covering 72% of the participants between 1999 and 2019 revealed a significant difference in dementia diagnoses. Among the 264 participants in the speed-of-processing training group with booster sessions, 105 (40%) received a dementia diagnosis. This represents a 25% reduction compared to the 49% (239 out of 491) of adults in the control group who received no specific training.

Why Speed Training Stands Out

While training in reasoning and memory did not yield the same statistically significant results, the speed-of-processing training proved particularly effective. This difference is attributed to the individualized nature of the speed training programme. The difficulty level adapted in real-time to each participant’s performance, providing a constantly tailored challenge. Faster individuals received more demanding tasks, while those needing more time started at a slower pace. In contrast, the memory and reasoning programs used a standardized approach for all participants.

speed training appears to engage implicit learning – a more subconscious, habit-like process – while memory and reasoning training rely on explicit learning, which involves conscious recall of facts and strategies. This distinction in how the brain learns may explain the differing outcomes.

Expert Insight: Vincenzo Andreone, Director of the Neurological Unit at the AORN “Antonio Cardarelli” in Naples, explains that intervening on cognitive response efficiency in older age may have lasting effects, potentially delaying the clinical manifestation of dementia.

Implications for Public Health and Individual Well-being

“The study extends the observations of the original ACTIVE trial published in 2002,” explains Vincenzo Andreone, Director of the Neurological Unit at the AORN “Antonio Cardarelli” in Naples, “showing that adaptive training of processing speed can reduce the long-term risk of dementia diagnosis.” The training utilizes a computer test called UFOV (Useful Field of View), which measures how quickly individuals can process visual information under pressure. The test progressively reduces the exposure time, in milliseconds, adapting to the subject’s ability. Faster and more accurate responses indicate greater cognitive efficiency.

According to Andreone, this isn’t simply a test, but a repeated training exercise designed to stimulate attention and processing speed. Reinforcing this training with follow-up sessions appears to be crucial for long-term benefits.

Frequently Asked Questions

What is the UFOV test?

The UFOV test is a computer-based assessment that measures how quickly a person can process visual information while under attentional pressure. It involves identifying central stimuli while simultaneously responding to peripheral elements and distractions.

How long does the training programme last?

The initial training programme consists of up to ten sessions of 60-75 minutes each, completed over five to six weeks. Half of the participants also received four booster sessions at 11 and 35 months after the initial training.

Did the study show benefits for all types of cognitive training?

The most significant and statistically meaningful results were observed in the group that received speed-of-processing training with booster sessions. Training focused on memory and reasoning did not demonstrate the same level of benefit.

Given these findings, could incorporating regular cognitive exercises into a healthy lifestyle be a proactive step towards preserving cognitive function as we age?