ch 8 - perceiving motion

Question 1

biological motion

Answer 1

The motion that is produced when an individual or other living organism

Question 2

point lightn walkers

Answer 2

example of biological motion where Lights/dots are placed on a person and when the person starts moving, then there is perceptual organization created by the movement and the lights (which were meaningless when the person was static) as they are perceived as a person/or other living organism’s movement

Question 3

real motion

Answer 3

an object is physically moving

Question 4

Apparent motion

Answer 4

stationary stimuli are presented in slightly different locations

Question 5

how are real and apparent motion represented in the visual cortex

Answer 5

In an experiment by Larsen et al with the dots, they found that with apparent and real motion, activation of visual cortex from both sets of stimuli was similar.

Question 6

induced motion

Answer 6

motion of one object (usually a large one) causes a nearby stationary object (usually smaller) to appear to move

Question 7

illusory motion

Answer 7

perception of motion when there actually is none

Question 8

Motion aftereffects

Answer 8

viewing a moving stimulus causes a stationary stimulus to appear to move

Question 9

waterfall illusion

Answer 9

An aftereffect of movement that occurs after viewing a stimulus moving in one direction, such as a waterfall. Viewing the waterfall makes other objects appear to move in the opposite direction.

Question 10

Describe how we perceive motion according to J.J. Gibson, who founded the Ecological Approach to perception

Answer 10

The information for motion perception is not located in the retina but this information is directly available in the environment for perception

Question 11

Describe how we perceive motion perception according to J.J. Gibson, who founded the Ecological Approach to Perception

Answer 11

The information for motion perception is not located in the retina but is directly available in the environment for perception

Question 12

optic array

Answer 12

The structured pattern of light created by the presence of objects, surfaces, and textures in the environment

Question 13

the ecological approach to perception

Answer 13

Motion, according to Gibson, is when one part of the visual scene moves relative to the rest of the scene, and no motion is perceived when the entire field moves, or remains stationary

Question 14

motion parallax

Answer 14

as we move, nearby objects appear to move rapidly across the visual field whereas far objects appear to move slower

Question 15

stereoscopic vision

Answer 15

2 eyed depth perception that takes into account differences in the images formed on the left and right eyes