Menu

Brain exercises

Seventeen short demonstrations of how your brain works

Each one takes a minute or two, runs in your browser, and comes with a plain-English explanation of what just happened. No account, no scores, nothing recorded.

Start anywhere

The Activities

Diagram from Chicago Brain Health showing the three part structure of every brain exercise page: try the activity, read what just happened, then read what it does not mean.
Every activity here follows the same shape

What These Are

Demonstrations. Each one shows you something your perception, attention or motor system does automatically, usually without you noticing. The interesting part is not the activity. It is the explanation of why your brain behaves that way, and every one of them is written to be worth reading even if you never run the activity itself.

What These Are Not

They are not tests, screenings or diagnostic tools. No result here says anything about whether you have a condition, how healthy your brain is, or how it compares to anybody else’s. Where an activity produces a number at all we show you that number and nothing else, because norms and percentiles measured through a browser on unknown hardware would not be defensible.

They are also not brain training. There is good evidence that people get better at tasks they practice, and much weaker evidence that this carries over to unrelated abilities in everyday life. So we would rather be upfront with you: running these will not sharpen your memory or protect you from cognitive decline. What actually moves those things is more involved, and a good deal more interesting, than a browser activity.

Comparison diagram from Chicago Brain Health showing the difference between a one minute browser demonstration and a full neuropsychological evaluation, including conditions, scoring and what each can tell you.
A demonstration and an evaluation are different things

We are a clinical practice, so we will say the obvious thing. If you are worried about your attention, memory, sleep or mood, the useful step is an assessment, not an illusion. A conversation with a psychologist is free and we will tell you when the answer is that you do not need us.

Someone discovering something surprising about how their own perception works
Curiosity is where this starts

What These Cannot Tell You

Every activity here is built to show you something true about perception in about a minute. Not one of them can tell you anything about you, and that is the design rather than a shortcoming. A browser, on hardware we know nothing about, in a room we cannot see, is not a measuring instrument. Putting a score on this page would oversimplify the real science behind getting genuine, lasting results in your life, and we would rather be straight with you than impressive.

You have already done the part that matters most. You got curious about how your own mind works, and then you went and looked. That is genuinely where this starts, and most people never quite get round to it.

But if you came here because something has actually changed, and your concentration, your memory, your sleep or your mood is not what it was, then the honest answer is that you need the other column. Measurement under controlled conditions, with validated instruments, by someone trained to watch how you approach a task and not only what you score. Someone who can also tell you when the cause is sleep, thyroid function, medication or stress rather than anything neurological, which it frequently is.

If you would like to keep going and find out what is actually happening for you specifically, that is exactly what this practice does, and that conversation is free. It is genuinely a conversation rather than an intake form, and we will tell you plainly when the answer is that you do not need us.

If you would rather read first, our conditions page sets out what neurofeedback is used for and how strong the evidence is for each, and our research page covers what the studies actually found, including the ones that came out negative.

Let’s chat

A free conversation with a psychologist. No intake form, no obligation, and we will tell you plainly when the answer is that you do not need us.

These activities are demonstrations of how perception, attention, memory and movement work. They are not tests, screenings or diagnostic tools, and no result here says anything about whether you have a medical or psychological condition. Nothing on this page is medical advice or a substitute for evaluation by a qualified professional. Last reviewed September 2026.