Midterm 2

Question 0

420 nm

Answer 0

Blue

Question 1

Wavelength does or does not have color?

Answer 1

Does not. Color is just the brains way of percieving certain wavelengths

Question 2

560 nm

Answer 2

Green

Question 3

640 nm

Answer 3

Red

Question 4

Metamerism

Answer 4

2 physically different stimuli are perceptually different

Question 5

Daltonism

Answer 5

Color deficiency

Question 6

Ishihara plates

Answer 6

Color blindness tests with numbers

Question 7

Unilateral dichromat

Answer 7

Has allowed us to understand dichromatic vision (color blindness where only two frequencies are needed to match everything)

Question 8

Monochromatic vision

Answer 8

Shades of grey.

One frequency to match. Low acuity.

Question 9

Dichromatic types

Answer 9

Protanopia - reds as blue until increased to 492nm they see grey (neutral point) above neutral point is perceived yellow.
Deuteranopia - blue at short yellow at long 498 neutral point
Tritanopia- blue at short, red at long. 570 neutral point

Question 10

Helmholtz opponent process color theory

Answer 10

Color is created by opposing responses generated by blue and yellow and by red and green

Question 11

Cerebral achromatopsia

Answer 11

Color blindness due to damage to the cortex