Introduction To Psychology - Sensation and Perception PDF

INTRODUCTION TO PSYCHOLOGY Chapter 3 - Sensation and Perception. sensation desensitization - the stimulation of sensory receptors and the - the type of sensory adaptation in which we tr...

INTRODUCTION TO PSYCHOLOGY Chapter 3 - Sensation and Perception. sensation desensitization - the stimulation of sensory receptors and the - the type of sensory adaptation in which we transmission of sensory information to the become less sensitive to constant stimuli. Also central nervous system called negative adaptation perception visible light - the process by which sensations are organized - the part of the electromagnetic spectrum that into an inner representation of the world stimulates the eye and produces visual sensations absolute threshold - the minimal amount of energy that can produce hue a sensation - the color of light, as determined by its wavelength pitch - the highness or lowness of a sound, as cornea determined by the frequency of the sound - transparent tissue forming the outer surface of waves the eyeball subliminal stimulation presbyopia - sensory stimulation below a person’s absolute - a condition characterized by brittleness of the threshold for conscious perception lens difference threshold dark adaptation - the minimal difference in intensity required - the process of adjusting to conditions of lower between two sources of energy so that they will lighting by increasing the sensitivity of rods and be perceived as being different cones Weber’s constant complementary - the fraction of the intensity by which a source of - descriptive of colors of the spectrum that when physical energy must be increased or decreased combined produce white or nearly white light so that a difference in intensity will be perceived afterimage just noticeable difference (jnd) - the lingering visual impression made by a - the minimal amount by which a source of stimulus that has been removed energy must be increased or decreased so that a difference in intensity will be perceived trichromatic theory - the theory that color vision is made possible by signal–detection theory three types of cones, some of which respond to - the view that the perception of sensory stimuli red light, some to green, and some to blue involves the interaction of physical, biological, and psychological factors opponent–process theory - the theory that color vision is made possible by feature detectors three types of cones, some of which respond to - neurons in the sensory cortex that fire in red or green light, some to blue or yellow, and response to specific features of sensory some to the intensity of light information such as lines or edges of objects trichromat sensory adaptation - a person with normal color vision - the processes by which organisms become more sensitive to stimuli that are low in magnitude monochromat and less sensitive to stimuli that are constant or - a person who is sensitive to black and white ongoing in magnitude only and hence color–blind sensitization dichromat - the type of sensory adaptation in which we - a person who is sensitive to black–white and become more sensitive to stimuli that are low in either red–green or blue– yellow and hence is magnitude. Also called positive adaptation partially color–blind