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Chapter 4 - Sensation & Perception

Psychology Chapter 4
by

Cecelia Foster

on 7 September 2010

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Transcript of Chapter 4 - Sensation & Perception

Chapter 4
Sensation & Perception
Perception
The process of ignoring unimportant sensory information. It allows us to deal with environments containing large amounts of sensory inputs while still focusing on significant ones.
Sensation
The ability to keep objects in the environment steady.
Adaptation
Illusion
The process of receiving information from the environment.
The process of organizing this information and making it meaningful.
Subliminal perception occurs below mental awareness.
An inaccurate perception.
Depth Perception
The ability to see objects in space.
The inability to perceive certain colors such as red and green.
Closure
The process of filling in the missing details of what is viewed.
Reversible figure
An illusion in which the same object is seen as two alternate figures, first one, then the other.
Size constancy
The ability to retain the size of an object regardless of where it is located.
Space constancy
Color Blindness
Pupil
The part of the eye that focuses an object on the back of the eye.
The colored circular muscle that opens and closes regulating the amount of light that gets into the eye.
Located in the back of the eye; it contains millions of receptors for light.
The opening in the eye.
Lens
Retina
The clear outer covering of the eye behind which is fluid.
Iris
Cornea
Cones
A visual receptor that responds during daylight; receives color. Used for color and daylight vision. They shut off at night.
Sensitive to violet-purple wavelengths. Useful for night vision. Located at the sides of the retina. “Sees” only black and white.
Rods
Because the right half of your brain is trying to say the color, while the left side of your brain is trying to say the word.
Why is it so difficult?
Color vision is made up of red, green and blue.
Blind spot
The point in the retina where the optic nerve connects to the eye; thus no receptors for light are located there.
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