Vocabulary Vision Other Senses Perception Stump's Stumpers
100
What is Sensation
The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment.
100
What is Rods
Retinal receptors that detect black, white, and gray; necessary for peripheral and twilight vision, when cones don’t respond.
100
What is Taste
Along with smell, one of the two chemical senses.
100
What is Shape Constancy
Perceiving objects as having the same shape from different angles.
100
What is Red, Blue, Green
According to the Young-Helmholtz Trichromatic Theory, the retina has color receptors for these three colors that work together to perceive all other colors.
200
What is Perception
The process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events.
200
What is Retina
The light-sensitive inner surface of the eye, containing the receptor rods and cones plus layers of neurons that begin the processing of visual information.
200
What is Cochlea
A coiled, bony, fluid-filled tube in the inner ear through which sound waves trigger neural impulses.
200
What is Size Constancy
Perceiving objects as having the same size from different angles.
200
What is Sweet, Salty, Sour, Bitter, Umami
The five basic tastes.
300
What is Bottom-Up Processing
Analysis that begins with the sensory receptors and works up to the brain’s integration of sensory information.
300
What is Opponent-Process Theory
The theory that opposing retinal processes (red-green, yellow-blue, white-black) enable color vision; some cells are stimulated by one color and inhibited by its opposite.
300
What is Limbic System
Our sense of smell is a powerful trigger for memories because it is linked to this system of the brain.
300
What is Lightness Constancy
Perceiving objects as having the same brightness in different lighting.
300
What is Frequency
The number of complete wavelengths that pass a point in a given time; affects pitch in sound waves.
400
What is Top-Down Processing
Information processing guided by higher-level mental processes, as when we construct perceptions drawing on our experience and expectations.
400
What is Fovea
The central focal point in the retina, around which the eye’s cones cluster.
400
What is Absolute Threshold
Sensing the tick of a watch at 20 feet under quiet conditions is an example of this for hearing.
400
What is Convergence
A binocular cue for perceiving depth by comparing images from the retinas in the two eyes; also known as retinal disparity.
400
What is Weber’s Law
The principle that, to be perceived as different, two stimuli must differ by a constant percentage.
500
What is Inattentional Blindness
Failing to see visible objects when our attention is directed elsewhere.
500
What is Cornea
The transparent protective coating over the front part of the eye.
500
What is Vestibular Sense
The sense of body movement and position, including the sense of balance.
500
What is Precognition
Perceiving future events; part of the claim that extrasensory perception (ESP) exists.
500
What is Gate-Control Theory
The theory that the spinal cord blocks pain signals or allows them to pass on to the brain.






Sensation & Perception

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