Apparent motion

Question 1

Apparent motion

Answer 1

Sense of motion when a stimulus goes off in one place and on in antoher

• Beta motion
• Phi-motion

Question 2

Left-right vs up-down motion

Answer 2

When looking at it foveally/small eccentricity, close together, makes it near impossible to see up-down motion

If slight of center, eg right next to it you see it up-down

Question 3

D-max

Answer 3

Shorter jumps are preferred, Too large jumps means no motion detection. The D-max is the point to where it is still visible.

In a graph it’s scaled with eccentricity (distance) to show the breakpoint

Question 4

Beta motion

Answer 4

Apparent motion where one stimuli jumps to another. Eg with snake, where the last dot jumps to the front and the whole thing seems to move

Question 5

Phi-motion

Answer 5

Motion due to disappearing signal
Eg pink dot in circle, which has;
- Color aftereffect (Motion becomes green)
- apparent phi motion (Goes in circle)
- Troxler fading (pink disappears)