Psych Ch. 8 sect. 1

occurs when a stimulus activates a receptor

organization of sensory info. into meaningful experiences

study of relationships between sensory experiences & the physcial experiences that cause them

the weakest amount of a stimulus that a person can detect half the time

smallest change in a physical stimulus that can be detected between two stimuli

principle that the larger/stronger a stimulus, the larger the change required for an observer to notice a difference

study of people's tendencies to make correct judgement in detecting the presence of stimuli