Presentation rate and the representation of briefly glimpsed pictures in memory . By replacing precise recall of the password with image recognition, we can minimize the users cognitive load, help the user to make fewer mistakes and provide a more pleasant experience. If the user makes a small error in entering the secret, the authentication fails. Unfortunately , precise recall is not a strong point of human cognition. The human limitation of precise recall is in direct conflict with the requirements of strong passwords.
Many researchers show that people pick easy to guess passwords.
Presentation rate and the representation of briefly glimpsed pictures in memory .