Does playing memory games improve memory? What research keeps showing.
Play a memory game daily and your score will certainly rise. The question is what caused the rise. Mostly it is familiarity with the rules, tactics suited to that specific layout, and faster hands. Calling that an improvement in memory itself is hard to justify.
Trained ability carrying over to another task is called transfer. What studies repeatedly show is that transfer occurs to some degree with very similar tasks and barely at all with different ones. Practising digit recall improves digit recall, but evidence that this reaches study or work performance is weak.
The millisecond figure from a reaction test does not measure human response alone. Device and browser delay sit between when the screen actually changes and when input arrives. That is why the same person scores differently on different hardware. Comparing against your own records is meaningful; comparing absolute numbers with others is not.
The evidence for cognitive function is stronger for the body and daily life than for on-screen training. Regular aerobic exercise, sufficient sleep and social contact are the factors that keep appearing. If time on brain games displaces those, it may be a net loss.
Playing because it is fun, or to reset your focus during a short break, is reason enough. The problem is spending significant money or time on the expectation of getting smarter. Being clear about why you play also means fewer disappointed expectations.
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