luminance detection Flashcards
1
Q
what is the peak retinal eccentrecity
A
18 degrees
2
Q
in the study what eccentricity was the stimuli presented at
A
20 degrees
3
Q
what is the peak spectral sensitivity for the rods
A
510nm
4
Q
peak for cones
A
580nm
5
Q
spatial summation
A
eyes ability to summate or add up over a certain area
6
Q
riccos law (spatial summation)
A
L x A = K
luminance x area = constant value
7
Q
what stimulus diameter did hecht et al use
A
stimulus of diameter 10 arcmin
8
Q
blochs law (temporal)
A
L x T = K
luminance
time
constant
9
Q
which has a shorter period of temporal summation
A
photopic system has a shorter period than the scotopic system
10
Q
A
