1) When a person perceives something and creates a memory trace of it, an iconic memory moment is created. At that time, the brain fully preserves the memory trace, but that moment usually lasts less than a second. If a person has a photographic memory, the iconic memory trace is long-lasting.

2) Photographic memory, or eidetic memory, is a very rare ability. The trait is found in only about 2% of people.

2) Well-known eidetics include basketball player Lebron James and artist Stephen Wiltshire.

Do you have an absolute ear for music? Would you be a reliable eyewitness? Or would you like to find out if you would make an astronaut?

Heureka's fun and free online tests will teach you new things about yourself and give you insights into various scientific fields. The tests are suitable for all ages! All tests are only in Finnish.

In addition to online tests, you can also find fun science videos, science experiments to do at home, and tasks related to astronomy and space in the link below. This way, we make sure that science and the joy of discovery continue at home too!