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AP Psych Unit 3, Lesson 3 Vision - Sensory and Perceptual Processing, Module 22 pgs. 222-31.pdf
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AP Psych Unit 3, Lesson 3 Vision - Sensory and Perceptual Processing, Module 22 pgs.
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AP Psych Unit 3, Lesson 3 Vision: Sensory and Perceptual ProcessingModule 22 pgs. 222-31
Study online at https://quizlet.com/_dynlwo
1. What light energy The part of the spectrum visible to humans is small. We
is visible to hu- can see light waves with a frequency of a little less than
mans? 400nm and a little more than 700nm.
2. Lightwave fre- Light travels in waves. Shapes of waves influence what we
quency (WAVE- see.
LENGTH) Short wavelengths=high frequency (bluish colors)
Long wavelengths=low frequency (reddish colors)
3. Lightwave ampli- A lightwave's amplitude or height determines its intensity.
tude (HEIGHT) Great amplitude=bright colors
Small amplitude=dull colors
4. Information of- Amplitude shows how bright is the color you see.
fered by ampli- Great amplitude=(bright colors)
tude waves Small amplitude=(dull colors)
5.
, AP Psych Unit 3, Lesson 3 Vision: Sensory and Perceptual Processing
Module 22 pgs. 222-31
Study online at https://quizlet.com/_dynlwo
What is the Different wavelengths (hue) of light result in different col-
wavelength (hue) ors.
range of colors? Short wavelengths: Violet 400 nm
Long wavelengths: Red 700 nm
6. What is ampli- Blue color with varying levels of intensity. As intensity
tude's (intensity) increases or decreases, blue color looks more "washed
range of blue col- out" or "darkened."
or?
7. How does the To focus the rays, the lens changes its curvature and
eye's lens thickness in a process called accommodation.
change shape?
8. Normal vision-no No issue: The eye is the correct shape. The light rays focus
issues on the retina.
9. Myopia/Near- Issue: Eyeball is too long so lens focuses image in front of
sightedness the retina - can see near, NOT far.
vision issue
, AP Psych Unit 3, Lesson 3 Vision: Sensory and Perceptual Processing
Module 22 pgs. 222-31
Study online at https://quizlet.com/_dynlwo
10. Hyperopia/Far- Issue: Eyeball is too short so lens focuses image behind
sightedness the retina - can see far, not near.
vision issue
11. Presbyopia Issue: In youth, images are formed directly on the retina
(need bifocals) creating close up vision. In Presbyopia (bifocal issue), the
vision issue eye's lens ages and stiffens. Images are formed behind
the retina causing blurry close up vision.
12. Astigmatism vi- Issue: People have a cornea with an irregular shape. (Ex-
sion issue ample: Cornea protrudes outward.)
13. Cornea Part of eye that is the eye's clear, protective outer layer
covering the pupil and iris. Light enters the eye first through
the cornea and bends to provide focus.
14. Pupil Part of eye that is a small opening in the center of the eye
through which light passes.
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