— THE SCIENCE

Attention is
a faculty,
not a mood.

Faculties can be trained. Here's the science underneath — and a small demonstration that lets you feel your own attention at work.

—SEE IT FOR YOURSELF

Your attention can darken a circle.

Three overlapping grey circles. Every one is the identical shade.

A small experiment in perception.

The circles overlap like panes of smoked glass. Nothing here is animated. Whatever you are about to notice happens entirely inside you.

1

      Rest your eyes on the small dot at the centre.
      Hold them still — really still — and don’t let them wander.
    
2

      Without moving your eyes, let your attention rest on any one circle.
      Hold it there for ten seconds or so.
    

Notice anything? The circle under your attention may have begun to deepen, sinking a shade darker than the others. The screen never changed. That shift happened in you.

See it faintly, or not at all? That is expected. And it is the point. The effect varies between people and from moment to moment. That variation is attention itself, fluctuating.

    “
  

    This is not a Glide feature. It is a published perceptual finding,
    first documented by Professor Peter U. Tse of Dartmouth College:
    “Voluntary attention modulates the brightness of overlapping transparent surfaces,”
    Vision Research, 2005.

    In Tse’s testing, sixteen of sixteen observers could choose which disk to darken
    using attention alone. We include it because it lets you feel, first-hand,
    the principle the rest of this page is built on: attention is not a passive lens.
    It is an active force.
  

— WHAT JUST HAPPENED

Nothing on the screen changed. A fixed grey held one fixed value the entire time. The darkening was real — but it was made by you.

For three centuries, attention was imagined as a spotlight: a beam that simply reveals whatever it lands on, leaving the world untouched. The illusion above breaks that picture. Attention reached into your perception and altered it. It did not find a darker disk; it produced one.

That raises the question this whole page exists to answer. If attention is an active faculty — something you do rather than something that happens to you — then the next question is the obvious one. Can it be trained? Fifty years of cognitive neuroscience says yes.

— THE FOUNDATION

Attention is not one thing. It is a system — and systems can be trained.

      “My experience is what I agree to attend to.”
    
      — William James, The Principles of Psychology, 1890

William James — the philosopher who founded modern psychology — first defined attention in 1890. It took another century for neuroscience to map it. The work of Michael Posner and colleagues established that what we loosely call "attention" is in fact at least three distinct, separable networks in the brain. Each is measurable, each independent, and each responsive to practice.

NETWORK ONE

Alerting

Reaching and holding a state of readiness: the difference between drowsy and primed. The baseline tone the other networks run on.

NETWORK TWO

Orienting

Selecting where attention goes, moving the focus toward what matters and away from what doesn’t, in space and in thought.

NETWORK THREE

Executive

Resolving conflict, staying with what you've chosen while competing pulls fight for the same focus. The network closest to "willpower."

This matters for one reason. A capacity that is structured is a capacity that can be exercised: deliberately, in specific ways, with progress that can be measured. That is the premise underneath every part of Glide.

— WHY GLIDE IS DIFFERENT

Mindfulness trains attention through stillness. Glide trains it through motion.

Mindfulness practices — meditation, breath work, body scans — train attention by directing it inward. The body is present; the practice is to notice it. Attention is observed, and gently brought back when it wanders.

Glide asks something different of attention. Your hand turns the wheel, continuously and in time. The instrument adapts in response — in touch, rhythm, sound and vision. Your attention is what couples the two. Hold the coupling steady and the system reads it as sync; lose it, and the system asks you to come back.

Coupling attention to ongoing motion makes attention measurable, session by session — something you can see, train, and repeat.

Motor synchronisation is a well-established concept in cognitive science and motor learning research. What Glide claims as its own is the way the instrument operationalises it — held in a separate patent application, and outside the scope of this page.

— BEGIN

You’ve felt what attention can do. Now train it.

Glide opens to the public in July 2026. Join the waitlist to be there on the first day.

Join the Waitlist ->

Attention is a faculty, not a mood.