PSY100H1 Chapter Notes - Chapter 5: Olfactory Bulb, Ponzo Illusion, Monosodium Glutamate

• School: UTSG
• Department: Psychology
• Course: PSY100H1
• Professor: Dan Dolderman

Document Summary

Sensation: sense organ"s response to external stimulus, transmission these response to brain, main function: detect. Perception: process, organize and interpreted sensory signal, main function: construct useful and meaningful information. Sensory coding: transfer stimulus"s physical properties into neutral impulses. Transduction: a process sensory receptor produce neural impulses, when receive physical or chemical stimulation, thalamus: most sensory info will goes through -> send info to cortex -> dissolve as taste, smell, touch, hearing, vision. Psychophysics relate to stimulus: sensory thresholds, absolute threshold: minimum intensity stimulation that must occur -> can experience sensation, different threshold = just noticeable difference between 2 stimulation. Minimum amount change require to notice different. Weber"s law: just noticeable different based on proportion of original stimulus than on a fixed amount of different: signal detection theory. Detection of a faint stimulus require a judgement. It is not an all or - none process: sensory adaption: decrease in sensitivity to a constant level of stimulation.