6. Attention span
The human brain tends to focus on events whilst ignoring others.
There is a famous test where a group of people are asked to view a video clip of a basket ball game and are told to count how many passes are made.
© Daniel J Simons
So everyone concentrates and counts away. But then the psychologist asks them 'Who saw the dancing gorilla?' Amazingly out of a group of 20 people only 1 actually saw a man in a gorilla suit dancing through the basket ball game!
It is called 'inattentional blindness'. The brain simply cannot see everything when distracted. People have a limited attention span.
The same principle applies to designing an interface -
- Only present information that is relevant at that instant
- Do not cause distractions
challenge see if you can find out one extra fact on this topic that we haven't already told you
Click on this link: HCI and attention span