Introduction
Methods
Motion contrast threshold
Experimental setup
Monitor calibration
Design of the motion stimulus
Adaptive algorithm
Double-pulse resolution
Test setup
Stimulus characteristics
Flicker frequency analyzer
Color perception
Subjects
Age | Visual acuity | ||||||
---|---|---|---|---|---|---|---|
N
| Mean | SE | Minimum | Maximum | Mean | SE | |
ARM group | 19 | 73.79 | 2.3 | 60 | 90 | 0.29 (20/63) | 0.048 |
Age-matched controls | 18 | 71.5 | 1.5 | 60 | 78 | 0.65 (20/32) | 0.057 |
Young controls | 8 | 27.1 | 1.7 | 21 | 34 | 1.25 (20/16) | 0.047 |
Results
Motion contrast threshold
Eccentricity | Nasal field | Temporal field | ||||
---|---|---|---|---|---|---|
U
|
z
|
p
|
U
|
z
|
p
| |
10° | 16.00 | −4.71 | <0.001 | 53.00 | −3.59 | <0.001 |
20° | 69.50 | −3.09 | 0.002 | 72.50 | −2.83 | 0.005 |
30° | 148.50 | −0.68 | 0.49 | 96.00 | −2.28 | 0.023 |
40° | 145.50 | −0.25 | 0.80 | 102.00 | −2.10 | 0.036 |
60° | − | − | − | 134.00 | −1.12 | 0.261 |
Double-pulse resolution
Eccentricity | Nasal field | Temporal field | ||||
---|---|---|---|---|---|---|
U
|
z
|
p
|
U
|
z
|
p
| |
5° | 46.50 | −2.55 | 0.011 | 46.50 | −2.56 | 0.011 |
10° | 45.00 | −3.83 | < 0.001 | 79.50 | −2.78 | 0.005 |
20° | 76.00 | −2.89 | 0.003 | 61.00 | −3.34 | 0.001 |