This document discusses human information processing. It covers how information is acquired through the senses and processed in the brain. Key points include:
- Information is acquired through exteroceptors (senses) and interoceptors and the brain filters for relevant signals.
- Information theory holds that information is the reduction of uncertainty, with improbable events conveying more information.
- Information load affects reaction time and accuracy of responses according to Hick's Law.
- Perceptual processes like detection, recognition and identification actively organize sensory input in a top-down manner.
- Perceptual constancies and illusions demonstrate how perception can be fooled to create reality from sensory information.