Views the brain as a computer that processes information
Internal mental processes are seen as software running on the hardware (the brain)
Information is input via the senses processed and output in the form of behaviour
Can't be studied directly - inferred from behaviour and actions
Using experimentation, try to work out what cognitive processes and structures underlie specific human abilities and behaviours - involves modelling
Example - Simons et al, study of visual perception
228 Ps watched 2 teams of 3 basketball players and had to count all the passes, a man dressed as a gorilla walks in the centre, beats chest and walks off