PSY 1101 Lecture : Sensation and Perception

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1101
• Professor: Najwa Haddad

Document Summary

Sensation (i, ii, iii, iv: basic principles (a, b, c, the musts of sensation. In order for sensation, 3 things must happen: y be able to detect specific forms of energy (or else there will be no sensation) y transduction is a must. It s taking physical energy and translated into a message that the brain can understand y the info must be transmitted to the brain for further. If one of those is missing then there s no sensation. Sensory receptors y highly specialized cells y they do the detecting/transduction/transmission y no sensory receptors means no sensation. Perception y take the info collected by senses and organize/integrate/interpret the info in a uniform way. Bottom-up processing y processing of incoming new data y sensation is a bottom-up process. 50% of the time y webber s law: the difference threshold is a constant proportion of initial stimulant .