Take a close look at the photo above and find a person hiding in it as quickly as possible.
If you can spot him within 3 seconds, your brain response is higher than average.
If you can spot him within a minute, your brain response is at a normal level of development.
If you can spot him within 1-3 minutes, your brain response is half a beat slow.
If you find him for more than 3 minutes, your brain response is super slow.