Sensation and perception (2)

Question 1

Theories of Color vision

Answer 1

Trichromatic theory
Opponent-process theory

Question 2

What is the trichromatic theory?

Answer 2

explains how our eyes perceive and process colors.

Question 3

what is color mixing?

Answer 3

The brain interprets the combination of signals from these cones to create a wide spectrum of colors.

Question 4

What is additive color mixing?

Answer 4

combining different wavelengths of light can produce a variety of colors.

Question 5

What is the opponent-process theory?

Answer 5

the human visual system interprets color through the comparison and interaction of three color channels.

Question 6

What are the opponent process channels?

Answer 6

Red green channel - process red and green colors in opposition to each other

blue yellow channel - processes blue and yellow colors in opposition

Black white channel - process the overall intensity of light

Question 7

Sound

Answer 7

the physical stimuli for the sense of hearing are sound waves

Question 8

What are the properties of sound and explain them

Answer 8

Frequency - number of cycles per second in a sound wave

Amplitude - Magnitude of a sound wave