The ATAVT perception test

You get a short look at a busy street or junction. Then the picture is gone, and you say what was in it. That is the perception test. Centres often call it ATAVT.

It is not a grid of shapes. Visual search is find the matches. ATAVT is what you kept after a glance: vehicles, people, signs, lamps, the things that would matter if you were looking out of a cab.

A glance, not a study

They already know you can look carefully if the picture stays. The job often does not stay. A platform, a crossing, a junction you pass: you get one look, then you are past it. The test is whether the picture is still there once the screen is blank.

Some versions use a photo. Some use a drawing. Some change how long you get as you go. Read the live instructions. The family is the same: look, lose the picture, report.

On the day the glance is extremely brief: about half a second to a second, depending on the version. RailFocus does not copy that clock. Easy lets you look as long as you need. Medium and Hard still hide the picture, but they leave it on for several seconds so you can practise the scan and the checklist. The real day will be shorter. The live instructions win.

The usual misses

• You invent a bus because a busy street ought to have one.
• You miss the small thing at the edge: a lamp, a sign, a person on the pavement.
• You try to count every car instead of remembering the kinds of thing that were there.
• You wait to be sure, and the picture has already gone.

A wrong extra costs as much as a miss. An incomplete list that is honest beats a full list you guessed.

Scan, then stop

Give yourself an order and keep it. Road, then pavement, then the edges. On the day the questions will differ. In practice, mark kinds, not counts: one car and three cars are both a car. If you did not see it, leave it.

Repeat the glance until it feels ordinary. Easy runs that stay on screen are only for learning the list. Timed runs that hide the picture are the useful ones. They are still longer than the assessment itself, on purpose. If your practice never includes a blank after the look, you have been practising a different test.

On the day, the instructions say how long you look, what you have to report, and whether you can change an answer. Those win over a note you read at home.