Eye Movements

Question 1

What is the vestibulo-ocular reflex?

Answer 1

The VOR moves the eye to compensate for head movements and so maintains visual stability

Question 2

Smooth pursuit eye movements

Answer 2

These allow the observer to track a visual target and so keep the target stable on the retina—even if this is at the expense of an equal and opposite movement of the background.

Question 3

Saccadic eye movements

Answer 3

The eye jumps rapidly to point the eye at a new location

Question 4

What is ECCENTRICITY?

Answer 4

The distance from the current FIXATION POINT to the TARGET.

Question 5

Which seems to have a larger effect on saccadic latency than eccentricity?

Answer 5

Stimulus Properties

Question 6

What does fixation release aka fixation disengagement accomplish?

Answer 6

Speeds oculomotor orientation by releasing the fixation system.

Question 7

What is the “remote distractor effect”?

Answer 7

The increase in saccadic latency that results when the target for the saccade is presented concurrently with a distractor. Not the same as the gap effect during which the fixated item disappears before the new target appears.