Motion Perception

This does NOT include the recommended lecture on the Vestibular Ocular reflex.

What are the four types of ocular movements?

Vergance, Saccadic, Pursuit and VOR

Outline the importance of vergence movements

Allows both foveas to focus on near or far objects

What is the physical movement done by the eyes during vergence?

Eyes rotate laterally, in opposite directions to each other

Outline the importance of Saccadic movements

Moves the fovea around multiple points of focus at a fast speed

True or false: We are blind during the movement in a saccade?

True

True or False: We can control the speed our eyes move during a saccade?

False

Outline the importance of pursuit movements

Keep fovea on a moving object

True or false: Pursuit movements are voluntary

False

Alongside a projector and a series of carefully placed mirrors, what other important apparatus was needed stabilize retinal images in Riggs’ (1953) experiment?

A mirrored contact lens

After the retinal image was stabilized, what would participants begin to report at about 3-5 seconds during Riggs’ experiment (1953)

Image on the screen begins to fade.

What are the 4 ways to elicit the perception of motion?

Real physical movement, Apparent movement, Induced movement and motion after affects

Out of the 4 which 2 ways to elicit motion perception are predictable?

Induced motion and motion after effects

Outline apparent or Phi movement?

static images shown in quick succession can give the effect that the subject of the images is moving

What industry relies on our processing of Phi movement?

The Film industry

What motion based depth cue is similar to Induced movement?

Motion parallax

Outline motion after affects?

Our minds become so adapted to a moving stimulus that upon looking away, the motion effect can still be perceived in static objects

Are two main types of motion after affects?

Directional and Radial

True or false: Objects in motion are easier to perceive than stationary objects

True

Outline motion based blindness

Suppressing stationary stimuli to aid in detecting a nearby object in motion

Outline motion capture and biological motion

We only need limited data/points to detect an object if it is in motion, especially if its a human or animal

Who is the best looking person in the 2023 stage one psychology cohort?

Noah Milligan