Doherty threshold

Answer as quickly as possible so there is no awkward silence

In 1982, Walter J. Doherty and Ahrvind J. Thadani, who were working at IBM, published a paper showing that when the reaction time is less than 0.4 seconds, productivity increases as the reaction time decreases. At the time, it was thought that the maximum time a user could wait for the next task was 2 seconds, but they insisted it should be 0.4 seconds. specialty

Doherty criticality states that computer response time should not exceed 0.4 seconds to prevent users from becoming bored. This experiment also claimed that if it is within 0.4, it can be addictive. However, what users expect when they take action in the interface may vary depending on the situation. According to the standards of the experiment at the time, Action > Reaction > Thought Although we said we need 0.4 seconds for thinking time, the system actually needs to move faster. Our brains usually remember images within 100ms, and the average reaction time is 0.25 seconds. When actually using an app, you may have noticed that flashy animations may look cool at first or give you time to think more leisurely, but after you get used to them 2 or 3 times, the animations feel slow and frustrating.