Attention training
Two balls would light up simultaneously in different colours. The participants were required to identify one colour designated as the target (selective attention). When the participants tapped the correct ball, both lights would disappear; we recorded all errors. This training was administered to improve the participants’ visual search abilities (visual-spatial attention) by helping them focus on a task for a certain period (sustained attention), increasing their attention span, and decreasing reaction time, which can strengthen problem-solving abilities.