What is Prefrontal Gym?
“Prefrontal” here is everyday language for attention, working memory, and inhibitory control—not a medical label. Prefrontal Gym is a browser hub for short daily drills: Schulte grids, ball tracking, Stroop-style conflict tasks, N-back, and digit span backwards. Each round has a clear start and finish, so you can leave an infinite feed, complete one bounded task, and return to real work. No signup is required to begin. Our mascot, Flash (Shǎnshǎn)—an orange spark—shows up along the full training path when JavaScript is enabled.
The product is honest about scope: it is cognitive practice for everyday focus habits. It is not a diagnostic tool, therapy, or a substitute for professional care. Use it as a reset button after doomscrolling, or as a few minutes of light practice before homework, deep work, or reading.
Who it is for
- People stuck after short videos. You need a low-friction task that ends, so attention can leave the feed and re-enter homework or work.
- Students and exam prep. Run one visual-search or working-memory round before opening the book to lock in a start–finish rhythm.
- Knowledge workers between deep blocks. Use three to five minutes between meetings as a warm-up, then open the document that actually matters.
- Anyone building a light daily habit. Finishing short rounds consistently beats occasional marathon sessions.
How to use it
- Pick one short drill.
Open the play list, or jump into Schulte / N-back. Unsure? Read Hard to focus after short videos? first. - Commit to one round only.
The goal is finishing, not grinding. Phone or desktop both work; a quieter spot helps. - Return to the real task immediately.
Apply the focus you just built to the next sentence, problem set, or slide—before the feed pulls you back.
Want the full path with levels and progress? Enable JavaScript and open the in-app home. Flash will nudge you toward the next stage.
What each drill emphasizes
- Schulte grid: ordered tapping in a number grid—visual search and sustained attention. Guide: Online Schulte · Play: start.
- N-back: match the current stimulus to the one from n steps earlier—working-memory updating. Guide: Online N-back · Play: start.
- Ball tracking / Stroop / digit span: tracking attention, interference control, and verbal working memory. Browse them in the play list.
Practice tips
- Balance speed and accuracy. Rushing creates misses; over-caution stalls you. Get mostly right, then raise the tempo.
- One round is enough on hard days. Stacking many groups can feel productive while delaying the real task.
- When distraction is high, pick the simplest rules. Schulte’s clear endpoint often works best as a restart button.
- Place drills before the real work, not after failure. Think warm-up, not punishment.
- Pair with a timer. The drill switches state; a Pomodoro or “two paragraphs then break” protects the work block.
FAQ
Do I need an account?
No. Short rounds start immediately. Accounts are only for optional progress backup later.
How long should a session be?
Promise one finishable round—usually a few minutes. If you feel sharp, add another or switch drills; if not, return to real work.
Schulte or N-back?
Choose Schulte for scanning and speed; choose N-back for holding and updating recent items. Alternate days, or pick by feel from the play list.
Phone and desktop?
Both. Layouts adapt to touch and mouse; on phones the Schulte grid fills available width in portrait.
How is this different from flashcards or meditation?
These drills are game-like tasks with clear right/wrong and an ending—built for start–finish–leave. They do not replace studying or the work you actually need to ship.