Australian researchers from Edith Cowan University just finished a deep dive into the results of 26 separate peer-reviewed studies of the effectiveness of commercially available, computerised brain training programs.
Here's what they found.
Some brain training programs can help slow cognitive decline that may lead to dementia. Others had claims that were based on clinical trails that were not considered accurate in the slightest.
"We found that the current evidence indicates that at least some of the commercially available brain training programs can assist in promoting healthy brain aging," he said.
The researchers examined the scientific claims made by 18 companies that produce brain training programs, which are commonly available for personal computers or as apps. They found that 11 of those companies had no clinical trials or empirical evidence indicating they were effective.
They classified the products of the remaining seven companies into three categories based on the strength of the evidence of their effectiveness.
To be classified as Level 1 a program was required to have at least two well-designed randomised controlled trials, one of which had to be of high quality. Level 2 required only one high-quality randomised controlled trial, while Level 3 required only one moderate/poorly designed randomised controlled trial.
"The publication of high quality studies of commercially available programs has really accelerated over the past five years," Professor Martins said. "The evidence now supports the notion that the human brain is plastic in later life and can benefit from properly designed brain training programs."