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ThinkPsychology CH05

TermDefinition
Sensory system is the part of the nervous system responsible for processing sensory information.
Sensation describes the process through which we detect physical energy from the environment and code that energy as neural signals.
Perception the way a person selects, organizes, and interprets sensory information
Absolute threshold is the smallest amount of energy needed for a person to detect a stimulus 50 percent of the time.
Difference threshold or just noticeable differences (jnd) is the medium difference between two stimuli deeds to detect the difference 50 percent of the time.
Receptor cell a specialized cell that responds to a particular type of energy
Sensory neuron a neuron that carries information from the sensory receptors to the brain as a coded signal
Transduction a process through which physical energy such as light or sound is converted into an electrical charge
Sensory adaptation a process in which sensory receptor cells become less responsive to an unchanging stimulus
Parallel processing the process of doing several things at the same time
Inattentional blindness the failure to perceive a given stimulus
Change blindness the failure to detect drastic visual changes in a scene
Cocktail party effect a phenomenon in which selective attention allows a person to concentrate on one voice and ignore many others
Pop-out stimulus a stimulus that is important or interesting to a person
Multitasking the act of juggling independent sensory inputs
Perceptual adaptation a process in which a person adjusts to changes in the environment by adjusting sensory input
Created by: vjambriz
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