PS102 Chapter Notes - Chapter 4: Gustav Fechner, Cornea, Near-Sightedness
Document Summary
Sensation- the stimulation of sense organs (involves the absorption of energy by sensory organs usually light or sound, by the ears or eyes) Perception- is the selection, organization and interpretation of sensory input (involves organizing and translating sensory input into something meaningful) Psychophysics- the study of how physical stimuli are translated into psychological experience. Just noticeable difference (jnd): is the smallest difference in the amount of stimulation that a specific sense can detect an absolute threshold is simply the just noticeable difference from nothing. Fechner"s law: this states that the magnitude of sensory experience is proportional to the number of. Jnd"s that the stimulus causing the experience is above the absolute threshold constant increments in stimulus produce smaller and smaller increases in the perceived magnitude of sensation perceptions cant be measured on absolute scales. Subliminal perception- the registration of sensory input without conscious awareness (limen = threshold, sub = below below threshold)
