Parents, teachers, and health experts have debated the effects of video games for decades.
Some people worry that spending hours gaming reduces attention and learning, while others believe games improve problem-solving and mental skills. To answer this question more clearly, researchers recently reviewed almost twenty years of scientific evidence.
Their study, published in Acta Psychologica, combined the results of 133 studies involving more than 14,000 people. This type of research, known as a systematic review and meta-analysis, pools many studies together to identify overall trends instead of relying on the findings of a single experiment.
Video games differ from watching television because players must constantly interact with what they see on the screen. Many games require players to remember maps, plan strategies, react quickly, recognize patterns, and make decisions under pressure. Scientists have therefore wondered whether repeated practice might strengthen certain parts of the brain.
The researchers examined studies published between 2005 and 2025. They carefully assessed the quality of each study before analysing the results. Most were rated as medium quality, while about one quarter were considered high quality.
To better understand the findings, the researchers divided thinking skills into five categories. These included memory, visual attention, spatial ability, cognitive control, and intelligence.
They also analysed three types of evidence. One examined whether heavier gamers generally scored higher on thinking tests. Another compared gamers directly with non-gamers. The third looked at people who completed video game training programs.
The overall findings were encouraging but modest. People who played video games generally showed slightly better cognitive performance than those who did not. Memory showed the strongest and most consistent improvement across different types of studies.
Gamers also performed somewhat better on tasks measuring attention, spatial reasoning, self-control, and intelligence. Training studies suggested that memory improved the most after structured gaming programs.
Interestingly, factors such as age, gender, cultural background, health status, and game type did not greatly change the results. This suggests that the small benefits may apply across many different populations.
The researchers explain that memory improvements make sense because many games require players to remember locations, rules, characters, objectives, and changing situations over long periods. Repeated use of these skills may strengthen memory through regular practice.
Despite the positive findings, the researchers stress that important questions remain unanswered. Most of the improvements were small, not large. Many studies could not prove that gaming itself caused better thinking skills.
It is possible that people with stronger cognitive abilities are naturally more interested in complex games. There were also few long-term studies, so scientists do not yet know whether these benefits continue throughout life.
This review provides one of the strongest summaries currently available because it combines evidence from many independent studies rather than relying on isolated results. However, stronger long-term clinical research is still needed before video games can be recommended as a formal brain-training tool.
The findings suggest that moderate gaming is unlikely to harm cognitive function in most people and may even provide modest benefits, particularly for memory, when balanced with exercise, education, healthy sleep, and social activities.
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Source: Acta Psychologica.
