Summary of Homework 3 Results
Shown below are the maximum step size values (in pixel units) for good apparent motion for each of the three spatial separations (50, 100, 200). The table shows individual data, with group averages at the bottom.
| fifty | one hundred | two hundred |
| 21 | 42 | 67 |
| 15 | 10 | 5 |
| 11 | 7 | 4 |
| 10 | 7 | 3 |
| 10 | 6 | 1 |
| 20 | 10 | 5 |
| 142 | 8 | 4 |
| 17 | 30 | 35 |
| 20 | 14 | 10 |
| 10 | 7 | 5 |
| 25 | 20 | 10 |
| 34 | 23 | 17 |
| 55 | 40 | 25 |
| 30 | 17.2307692307692 | 14.6923076923077 |
For the MAE portion of the homework, the following table shows for each student the durations of the motion aftereffect when the adapted eye is tested ("direct condition") and when the unadapted eye is tested ("interocular condition"). The values at the bottom of the table show the average of these data, the standard deviation and the standard error.
| direct | interocular |
| 15 | 10 |
| 40 | 5 |
| 40 | 17 |
| 20 | 12 |
| 20 | 13 |
| 19 | 11 |
| 14 | 3 |
| 18 | 0 |
| 30 | 10 |
| 33 | 20 |
| 20 | 5 |
| 27 | 3 |
| 18 | 10 |
| 24.1538461538462 | 9.15384615384615 |
| 8.96145592566812 | 5.78570298013638 |
| 2.48546068021592 | 1.60466528919127 |
So, the "interocular condition" - where you test the unadapted eye - yields a consistently smaller aftereffect than the "direct condition - where you test the adapted eye. This raises two questions: