Nealk2013 VA ch3 Sensation and Perception
Chapter 3: Sensation and Perception (unfinished)
Terms in this set (29)
The basic experience of stimulating the body's senses
the least amount of energy that can be detected as a stimulation 50% of the time
An adjustment of the senses to the level of stimulation they are receiving
Difference Threshold (just noticeable threshold [jnd])
The smallest change in stimulation that can be detected 50% of the time
The principle that the jnd for any given sense is a constant fraction or proportion of the stimulation being judges
the study of psychic phenomena and ESP
Increased sensitivity of the rods and cones to darkness
Increased sensitivity of the rods and cones to bright light
a place on the retina where the axons of all the ganglion cells leave the eye and where there are no receptors
the aspects of color that correspond to names such as red, green, and blue.
the vividness or richness of a hue
Theories of Color Vision
1. additive color mixing
2. subtractive color mixing
3. trichromatic theory
the theory of color vision that holds that all color perception derives from three different color receptors in the retina.
theory of color vision that holds that three sets of color receptors (yellow-blue, red-green, black-white) respond to determine the color you experience
a psychological experience created by the brain in response to changes in air pressure that are received by the auditory nerve
changes in the pressure caused by molecules in the air of fluid colliding with one another then moving apart
the number of cycles per second in a wave
the magnitude of a wave
Not being able to recognize people's faces, known as propoagnosia
this is the phenomenon of "seeing sounds" or "hearing color"
an optical phenomenon that results in a false or deceptive visual impression
Process in which the sense organs' receptor cells are stimulated and relay initial information to higher brain centers for further processing.
A person's cognitive (mental) interpretation of events.
A thought or behavior that is influenced by stimuli that a person cannot consciously report perceiving
A sex-linked trait in which an individual cannot perceive certain colors.
gate control theory
A description of the system that transmits pain that incorporates modulating signals from the brain
the organization of the visual field into objects that stand out from their surroundings
the perception of objects as wholes within a context, not isolated lines and curves; Figure and ground; similarity; proximity; congruity; continuity; closure; area; symmetry
Extra Sensory Perception
The controversial claim that perception can occur apart from sensory input. Said to include telepathy, clairvoyance, and precognition.
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