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Sensation The stimulation of sensory receptors and the transmission of sensory information to the central nervous system
Perception An active process in which sensations are organized and interpreted to form an inner representation of the world
Absolute Threshold Refers to the weakest amount of a stimulus that a person can distinguish from no stimulus 50% of the time
Subliminal Stimulation Sensory stimulation that is below a person’s absolute threshold for conscious perception
Difference Threshold The minimum difference in magnitude of two stimuli required to tell them apart 50% of the time.
Signal-Detection Theory Assumes that the relationship between a physical stimulus and a sensory response is not just mechanical
Sensory Adaptation The sensory process of adjusting to the environment
Rods Black and white vision
Cones Color Vision
Nearsighted People who have to be usually close to a distant object to see its details
Farsighted People who see distant objects clearly, but have difficulty focusing on nearby objects
Presbyopia Lenses grow more brittle with age, making it more difficult to focus on objects
Created by: khansen0520