Psychology 1000 Chapter Notes - Chapter 5: Subliminal Stimuli, Detection Theory, Absolute Threshold

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Helen keller deprived of sight and hearing at only 19 months of age. Was very isolated teacher anne sullivan helped to communicate with her using her fingers to tap messages into helen"s palms synaesthesia: mixing of the senses , they would perceive sounds as colours or taste as touch with different shapes. The brain can not perceive light, however there are specialized neurons that convert light and our outside environment to nerve impulses. Transduction is the process whereby the characteristics of a stimulus are converted into nerve impulses. The five primary senses: vision, audition (hearing) Differences between stimuli (changing the brightness of lights slowly) Two kinds of sensitivity detection and discrimination. Detection absolute limits of sensitivity, that we can detect. Discrimination sensitivity for the differences between stimuli that we can discriminate. Detection absolute limits of sensitivity that we can detect. absolute threshold the lowest intensity level at which a stimulus can be detected (correct.