Exam 7: Depth and Size Perception

Explain how vergence relates to the distance of objects.

As Ramon stares at a photograph of Jean standing in a garden, he judges that Jean is about five feet away from a decorative statue.To make this judgment, Ramon uses ______.

Akil moves a chair from 20 m away to 10 m away, thereby increasing its ______.

Select all that apply.In a flat, barren desert, Ji-hun sees two statues in the distance that appear to be the same size.However, when his friend crosses in front of the statue on the right, walks up to the statue on the left, and lays a hand on it, Ji-hun realizes that the statue on the right is really much bigger and farther away.What clues did Ji-hun combine to reach this conclusion?

When Marietta goes to a movie theater showing a 3D film, she puts on 3D glasses.As a result, a space ship on the screen appears to be flying into the movie theater directly toward her.This happens because the 3D glasses she wears while watching the film create ______ that her brain uses to extract depth from the moving image.

As Sonya moves forward in a field, the cow in front of her appears larger.Sonya is using a motion depth cue called ______.

What is the difference between motion parallax and optic flow?

The moon illusion is considered a size illusion because the moon is a huge object but we see it as an object about the size of a fingernail.

Francois is a passenger in a car moving at 65 miles per hour down the highway.When Francois looks out the windows, nearby objects will appear to rush by him in the opposite direction, but objects farther way appear to move more slowly relative to the car.Which depth cue is this associated with?

Where are disparity-tuned cells found in the visual cortex?

Heinrich knows that a vase is much smaller than a statue.However, because the vase appears larger, Heinrich knows it must be closer.Heinrich is using ______.

Research by Hofeldt and others shows that stereopsis offers no real advantages for baseball players in either hitting or fielding.

Select all that apply.In the Müller-Lyer illusion, the smaller lines that split off from the main line create the illusion that the main line is longer or shorter.The explanations for this illusion are that ______.

The region in space where the two images from an object fall on corresponding locations on the two retinae is known as the ______.

The inward rotation of the eyes when looking at closer objects is known as ______, and the process of adjusting the lens of the eye so that both near and far objects can be seen clearly is known as ______.

To focus on an object close to our eyes, we contract the ______ muscles.

If object recognition is necessary for matching correspondence, then random-dot stereograms will not result in a 3D perception.However, if correspondence matching occurs before object recognition, then it should be possible for people to extract binocular depth cues from random-dot stereograms.What has research found?

Explain diplopia and give an example.

Explain the difference between size-distance invariance and size constancy.Give an example for each.

Size constancy is the perception of an object having a different size, even though the size of the visual angle remains the same.