Psychology 1000 Lecture Notes - Hair Cell, Sound Intensity, Vestibular System

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr T Biggs

Document Summary

The process by which our sense organs respond to and translate stimuli into nerve impulses sent to the brain. Organizing the stimulus input and giving it meaning. Stages of sensation and perception: stimuli activate sensory receptors, sensory receptors translate information into nerve impulses, specialized neurons and analyze stimuli features, stimulus pieces are reconstructed and compared to stimuli in memory, perception is then consciously experienced. Absolute limits of sensitivity: dimmest light in which we can see objects, softest sound we can hear. Recognizing differences between stimuli, measure the difference between what you can and can"t sense: smallest difference in brightness detectable, recognizing differences between tones. The lowest intensity at which a stimulus can be detected 50% of the time. However, the environment contains a background level of stimulation for each sense and this level (the adaption level) must be overcome if a stimuli is to be detected. Going to plot the amount of positive responses at.