1. What makes your motion perception hard to explain scientifically?

a. It is hard to explain how the environment moves

b. It is hard to figure out how we achieve smooth pursuit of a stimulus

c. It is hard to understand how self-motion is differentiated from object motion

d. It is hard to understand how the eye moves

2. What type of motion did you experience?

a. Apparent motion

b. Biological motion

c. Induced motion

d. Real motion

3. Biological motion is easily detected, even if we can't see the entire living thing.

a. True

b. False

4. According to corollary discharge theory, why did you perceive the bird moving?

a. There was no retinal image displacement or motion signal

b. Because there was no motion signal, but retinal image displacement

c. There was both retinal image displacement and a motion signal

d. Because there was a motion signal, but no retinal image displacement

5. According to the ecological approach, why did you perceive the bird moving?

a. Because there was global optic flow

b. Because there was a local disturbance in the optic array

c. Because there was both a local disturbance and global optic flow

d. Because of the efference copy

6. The optic array consists of the retinal image and all the visual processing that takes place in the brain.

a. True

b. False

7. The brain treats apparent motion and real motion as the same.

a. True

b. False

8. Why do still frames of motion look like something is moving?

a. Because still images always look like they are moving

b. Because we anticipate the motion that is implied

c. Because biological motion is strong

d. Because the retina detects motion directly

9. Why is motion important to detect from an evolutionary perspective?

a. Because it helps you survive

b. Because it helps you perceive

c. Because it is ecological

d. Because perception = reality