Processing Speed

Raw speed of neural processing and arithmetic fluency. A baseline capability that shapes every other cognitive skill.

Each exercise targets a narrow construct: working memory, selective attention, processing speed, inhibition, mental rotation. You get a clean measurement every session.

Train mode gives you immediate feedback and adaptive difficulty so you learn fast. Test mode is timed and scored so you can benchmark against yourself over weeks.

Each exercise here is scored so you see your real progress, not vague points. Train mode gives immediate feedback. Test mode is timed and comparable to your past sessions.

Each test is constructed using Item Response Theory (IRT) and Classical Test Theory (CTT) to ensure reliable measurement of knowledge and ability across different difficulty levels.

Questions undergo rigorous review including difficulty calibration, discrimination analysis, and distractor effectiveness evaluation to maintain high assessment quality.

The neural basis is white-matter integrity: faster axonal conduction, especially in long-range fronto-parietal tracts, predicts faster responses. Cardiovascular fitness measurably preserves this.

1. Do RT at the same time each day: Alertness varies. Same time → comparable numbers.
2. Drill mental math in short bursts: Three 3-minute sprints beat one 10-minute session for arithmetic fluency.
3. Move before measuring: Light physical activation (walk, stretch) consistently shaves 20–40ms off RT.
4. Log everything: You can't improve what you don't measure. Keep your sessions and watch the trend.