Enhancing Cognitive Abilities with Comprehensive Training: A Large, Online, Randomized, Active-Controlled Trial

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human Computer Interaction

Background:

• Cognitive training interventions show mixed results regarding efficacy.
• Previous studies often used limited exercises, small samples, and short durations.
• Gaps exist in understanding the effectiveness of varied cognitive training programs.

Purpose of the Study:

• To evaluate an online cognitive training program with diverse exercises.
• To compare the program's efficacy against an active control (crossword puzzles).
• To assess improvements in cognitive abilities and self-reported functioning.

Main Methods:

• An online cognitive training program with 49 exercises was evaluated.
• A large sample (N=4,715) was recruited, trained, and tested online.
• Participants completed sessions 5 days/week for 10 weeks, comparing training to crossword puzzles.

Main Results:

• The training group showed significant improvements in neuropsychological performance (d=0.255).
• Greater gains were observed in speed of processing, memory, problem-solving, and reasoning.
• Self-reported cognitive function, especially concentration, also improved significantly (d=0.249).

Conclusions:

• A varied cognitive training program can yield broad transfer effects.
• Diverse tasks targeting multiple cognitive functions are effective.
• Online delivery of cognitive training shows promise for widespread application.