AP PSYCHOLOGY

SENSATION AND PERCEPTION

BASIC CONCEPTS OF SENSATION AND PERCEPTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The Young-Helmholtz Theory proposes that:
A
There are three different types ofcolor-sensitive cones
B
Retinal cells are excited by one color andinhibited by its complementary color
C
There are four different types of cones
D
Rod, not cone, vision accounts for ourability to detect fine visual detail
Explanation: 

Detailed explanation-1: -Hermann von Helmholtz developed the theory further in 1850: that the three types of cone photoreceptors could be classified as short-preferring (violet), middle-preferring (green), and long-preferring (red), according to their response to the wavelengths of light striking the retina.

Detailed explanation-2: -The Young-Helmholtz trichromatic colour theory proposes that colour perception is the result of the signals sent by the three types of cones, whereas the opponent-process colour theory proposes that we perceive colour as three sets of opponent colours: red-green, yellow-blue, and white-black.

Detailed explanation-3: -According to the Young-Helmholtz theory of color vision, there are three perceiving elements in the retina: red, green, and blue.

Detailed explanation-4: -the theory that the eye contains three different groups of retinal fibers (cones) with maximum response to three primary colors – red-yellow, green, and blue-violet – which are parts of the spectrum.

Detailed explanation-5: -The trichromatic theory states that three different types of cones in the eye (red, green, and blue) are responsible for converting light into electrical signals.

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