Hold a target in mind while ignoring everything that competes for it.
Adaptive rule: two correct in a row raises difficulty, one miss lowers it. Accuracy so far 0%.
Short, fully-attended blocks with feedback beat long distracted sessions.
Count only the target symbol in a crowded field.
A star lights up on the diamond and a number appears in the middle. After a blink both vanish — from memory, tap the star's cell AND the number. Both right = 1 point. The blink gets shorter as you score.
Your best: 0
Focus is trained in short, fully-attended blocks with feedback — not long distracted sessions.
Do homework in two 10-minute focus blocks with the phone in another room. Tally how often your mind wandered.
Stay ready without jumping early.
Sustained visual focus on targets.