How to Play (Instructions)
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Judge by Comparing Sizes
"Which One Is the Largest?" is a simple cognitive training game where you must instantly identify and tap the largest item among several options displayed on the screen.
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Rules
Multiple objects of the same type (such as numbers or shapes) appear at once, and you must select the largest one. There is a time limit, requiring quick decision-making.
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Increasing Difficulty
As you progress through the levels, the task becomes more challenging—for instance, the number of options increases, or the differences in size become more subtle. Sustained concentration is required.
Cognitive Functions You Will Train
Sharpening Visual Discrimination and Processing Speed
This game effectively stimulates visual discrimination (the ability to accurately perceive subtle differences in size) and processing speed (the ability to quickly assess visual information and act upon it) by challenging players to instantly identify the largest item among several options. As the number of choices increases or the size differences become more subtle, the game also engages working memory—the ability to temporarily hold and compare multiple pieces of information. These cognitive functions are primarily associated with the parietal lobe and prefrontal cortex; repeated play is expected to enhance observational skills and the accuracy of judgments, thereby helping to prevent errors and improve situational awareness in daily life.
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