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Chapter 4

PSH Exam 2 Review

Process of detecting external events by sense organs or sense receptors and turning those events into neutral signals. Sensation
Processing sensory information as it is coming in. Bottom-Up Processing
Transportation of stimuli to the central nervous system Transduction
Process of attending to organizing and interpreting info. that has been sensed. It is inferential. Perception
Smallest amount of physical energy that can be reliably detected. Absolute Threshold
Smallest difference between two stimuli that you can reliably detect. Difference Threshold
Below absolute threshold. Subliminal Threshold
Ability to detect some stimulus. Affected by intensity of stimulus and psychological/physical state. Signal Detection Theory
Reduction of activity/sensitivity in sensory receptors with repeated constant exposure. Sensory Adaptation
Focusing our conscious awareness of a particular event or stimulus. Selective Attention
Failure to see visible objects when our attention is focused elsewhere. Inattentional Blindness
Form of inattention blindness. Failure to detect changes in your visual environment. Change Blindness
Active at higher light levels. Color vision and high spatial activity. Cones
Vision at low light levels. Do not mediate color vision and have low spatial activity. Rods
Visual ability to perceive the world in three dimensions couple with the ability to gauge how far away an object is. Monocular=one, allow to perceive depth. Depth Perception
Perceiving objects as unchanging even as illumination and retinal image change. Shape and size. Perceptual Constancy
"whole". Figure/ground, similarity, proximity, closure, continuity and order/symmetry. Gestalt Principles
Objects that tend to travel toward us grow in size and the ones that move away shrink in size. Same is true if the observer moves away or closer to object. Motion Perception
Study of hues as a determinant of human behavior. Color influences perception that are not obvious. Color Perception.
Mental predispositions to perceive one thing and not the other. Perceptual Set
Created by: jordanaitkenn