Question 1

Warren, Kay, Zosh, Duchon, and Sahuc (2001) controlled the optic flow pattern that participants were viewing while walking in a specially designed room.Participants were asked to walk toward a goal: a red line visible in the virtual reality setup.They found that ______.

Accepted Answer

The study found that when the researchers manipulated the optic flow pattern, participants adjusted their walking to reach the goal, indicating that optic flow plays a role in our ability to perceive and navigate through our environment. B, C, and D are not supported by the study's findings.

Question 2

Monica looks up at a bowl on a shelf and reaches her hand toward it.By doing this, which of the following is Monica using?

Accepted Answer

Monica is using her long finger flexors (LIP) and long finger extensors (MIP) to reach for the bowl.

Question 3

Yosef is an experienced driver.As Yosef drives his car down the highway, he approaches a bend in the road.According to a study by Kandil, Rotter, and Lappe, Yosef is most likely to ______.

Accepted Answer

The answer of Yosef is an experienced driver.As Yosef drives...

Question 4

The point-light walker display could be used in a way that disrupts the identification of motion by having the person being videotaped wearing ______ on their wrists, elbows, shoulders, ankles, knees, and hips.

Accepted Answer

Sporadically blinking lights would disrupt the identification of motion because the intermittent on-and-off pattern would interfere with the viewer's ability to perceive continuous movement. The point-light walker display relies on the consistent visibility of light points to interpret human motion.

Question 5

Why is perceived motion in the rotating snakes illusion considered an illusion?

Accepted Answer

The rotating snakes illusion is considered an illusion because the image itself is static and does not move, even though our brains interpret it as moving. This discrepancy between reality and perception is what makes it an illusion.

Question 6

Otero-Millan, Macknik, and Martinez-Conde (2012) showed the rotating snake illusion to participants and asked them to indicate when the perceived motion was at a maximum and to indicate when the figure appeared to be not rotating.They found that the perception of motion was ______.

Accepted Answer

Otero-Millan, Macknik, and Martinez-Conde (2012) found that the perception of motion in the rotating snake illusion was highly correlated with the micro-saccades, which they measured via eye tracking.

Question 7

In which of the following scenarios could a person identify a dog using the point-light walker display?

Accepted Answer

The point-light walker display is a technique used to identify a moving object based on the pattern of movement of its limbs, rather than on the physical appearance of the object. In this scenario, watching a video of the dog trotting in normal motion would provide the viewer with the necessary movement patterns to recognize the dog using the point-light walker display. The upside-down video and still images would not provide enough information about the movement patterns of the dog's limbs, and therefore would not be useful for this purpose.

Question 8

Information in the visual world that specifies how that information can be used is known as a(n) ______.

Accepted Answer

Affordances are perceptual cues that indicate how an object can be used or interacted with. For example, a doorknob affords turning, while a chair affords sitting. This information guides our actions and behaviors in the environment.

Question 9

Colby, Duhamel, and Goldberg (1996) performed some interesting experiments on the role of the lateral intraparietal (LIP) area using single-cell recording with rhesus monkeys.They found that ______.

Accepted Answer

The lateral intraparietal (LIP) area is known to be involved in the planning and control of eye movements, including the anticipation of eye movements and the execution of the movements themselves. This is consistent with the findings of Colby, Duhamel, and Goldberg (1996), who highlighted the role of the LIP in both anticipating and executing eye movements.

Question 10

The destination point in an optic flow display, from which point perceived motion derives, is known as ______.

Accepted Answer

The focus of expansion is the specific point in an optic flow display that appears to be stationary and towards which objects in the visual field appear to be moving. This point is considered the destination point and is crucial in determining patterns and perceived motion.

Question 11

Louise saw a video of biological motion through point-light displays of people walking.Then she saw the video again, but this time it was inverted.Which of the following statement accurately reflects what she could identify?

Accepted Answer

Louise could identify biological motion from the first video because point-light displays of people walking are recognizable when oriented correctly. However, when the video is inverted, it becomes much harder to perceive the biological motion accurately, making it difficult for her to identify the motion as she did in the original orientation.

Question 12

The anterior intraparietal region is associated with what function?

Accepted Answer

The anterior intraparietal region is associated with the planning, control, and execution of grasping actions of the hands.

Question 13

The lateral intraparietal area is associated with ______.

Accepted Answer

The lateral intraparietal area (LIP) is a region in the parietal cortex that is primarily associated with the control of eye movements. Research has shown that LIP neurons are involved in processing visual information related to the spatial location of objects in the external world, and in planning and executing saccadic eye movements to attend to these objects.

Question 14

An experiment in which small lights are attached to the body of a person or an animal, which is then filmed moving in an otherwise completely dark environment, is known as the ______.

Accepted Answer

The experiment described in the question is the point-light walker display, in which small lights are attached to the body of a person or an animal and filmed moving in the dark. This technique is commonly used in studies of biological motion perception, as it allows researchers to manipulate the movement of the lights to investigate how the visual system interprets motion cues. A is incorrect because a camouflage detection system would involve detecting objects based on their visual similarity to the background. B is incorrect because a Corollary Discharge experiment involves testing the hypothesis that visual perception depends on signals from the motor system that enable the brain to predict the sensory consequences of self-generated movements. D is incorrect because a light threshold detection system would involve measuring the lowest level of light that can be detected by the visual system.

Question 15

In the furrow illusion, when the image is set in motion, the yellow circles move from left to right or right to left across the large gray and white circle.But when a person focuses on the top yellow circle ______.

Accepted Answer

When focusing on the top yellow circle, the lower yellow circle appears to zigzag back and forth due to the motion and visual perception effects in the furrow illusion.

Question 16

A motion-based visual illusion in which a stationary object is seen as moving in the opposite direction of real or apparent motion just observed is known as ______.

Accepted Answer

The described illusion is known as motion aftereffects, where the brain continues to perceive motion in a stationary object even after it has been viewed moving in the opposite direction. The other options, phi-square illusion, beta-motion illusion, and agnosic illusion do not describe this particular type of illusion.

Question 17

Rafael sees a motorcycle speed past him about 10 feet away.Then he sees another motorcycle moving at the same speed a quarter mile away, but it seems to be moving more slowly than the previous motorcycle.Rafael is experiencing ______.

Accepted Answer

Rafael is experiencing the gradient of flow, which refers to the perception of speed based on the distance of objects; closer objects appear to move faster than those farther away.

Question 18

After you have watched the falling of the water in a waterfall for about a minute, if you look at a blank surface, such as a white wall, you will get a sense of ______.

Accepted Answer

This phenomenon is due to the motion aftereffect, where the brain's perception adapts to motion in one direction, and when viewing a stationary scene afterwards, it appears to move in the opposite direction.

Question 19

An area of the posterior parietal lobe involved in the planning and control of reaching movements of the arms is known as the ______.

Accepted Answer

The medial intraparietal area (MIP) is involved in the planning and control of reaching movements of the arms, making it a crucial area in the posterior parietal lobe for coordinating these actions.

Question 20

Thato is in the process of landing his plane on an airstrip in a flat desert.Considering this, Thato would most likely judge the ground as moving ______.

Accepted Answer

The answer of Thato is in the process of landing...

Quiz 8: Movement and Action