Question 1

Which of the following statements is TRUE?

Accepted Answer

We are best able to detect motion when an object is moving at a medium speed. This is because too fast movements might blur and too slow movements might not be detected as motion, making medium speeds optimal for detection.

Question 2

In order for us to detect the motion of an object, it must move at least:

Accepted Answer

The minimum motion detectable by the human eye in terms of visual angle is 1 minute of arc. This is a measure of angular size, and it's a much finer resolution than absolute distances like cm or feet, allowing us to detect very small movements when objects are far away or close.

Question 3

Which of the following statements is TRUE?

Accepted Answer

The statement "We are less able to detect motion for objects located in the periphery than at the fovea" is true. This is because the fovea contains a higher density of photoreceptors and a greater concentration of color-sensitive cones, which allows for more precise visual processing in that area compared to the periphery. Additionally, the periphery contains more rod cells, which are more sensitive to light but less adept at detecting motion.

Question 4

Which of the following statements is FALSE?

Accepted Answer

We can detect motion better when the stimulus is against a plain background than a textured background. This is because the textured background provides more visual noise, which makes it more difficult to detect the motion of the stimulus.

Question 5

Regarding our perception of self-motion, Helmholtz argued that the __________________ of information was most important while Sherrington argued that the __________________ of information was most important. Evidence supports
 __________________.

Accepted Answer

Helmholtz argued that the outflow of information (efference) was most important for our perception of self-motion, while Sherrington emphasized the inflow of information (afference). Evidence supports Helmholtz's perspective, indicating that our perception of self-motion is significantly influenced by the signals our brain sends out to move the body, rather than just the sensory feedback received.

Question 6

The pattern of movement on our retina is called the:

Accepted Answer

The pattern of movement on our retina is referred to as optic flow, and the entire visual field's flow pattern is called the optic flow field. Therefore, option D, "optic flow field," is the best answer. The movement aftereffect is a perceptual illusion where a stationary item looks like it's moving after watching a moving stimulus, option A is incorrect. The phi phenomenon is a perceptual illusion where a series of still images presented at the right speed can create an illusion of motion, option B is incorrect. The self-motion illusion is a perceptual illusion where the perception of self-motion is created despite remaining stationary, option C is incorrect.

Question 7

We perceive our direction of self-motion with an accuracy of __________________ or less.

Accepted Answer

The answer of We perceive our direction of self-motion with...

Question 8

As an object gets closer to you, the visual angle of the object __________________ because the object takes up a __________________ portion of your retina.

Accepted Answer

As the object gets closer to you, the visual angle of the object increases because it takes up a larger portion of your retina. This is because the closer an object is to your eyes, the larger its image is projected onto your retina.

Question 9

The fact that an approaching object takes up increasingly larger portions of your retina provides a motion cue called:

Accepted Answer

Looming refers to the motion cue created by an approaching object taking up increasingly larger portions of your retina. Disocclusion and occlusion refer to motion cues created by objects partially or fully blocking each other's view. Kinetic depth is a type of motion cue that involves perceiving depth and movement from a 2D image through changes in shading or texture.

Question 10

In motion perception, the "time to contact" is called:

Accepted Answer

The "time to contact" in motion perception is referred to as tau (τ). This is the time it takes for an approaching object to make contact with another object, such as the eye or the hand. Research has shown that the brain utilizes tau as a fundamental cue for controlling movement and spatial orientation.

Question 11

Researchers use point-light displays to study our perception of:

Accepted Answer

Point-light displays are a type of stimulus that show only the moving points of a person or object in motion. This type of display is particularly useful for studying our perception of biological motion - that is, how we perceive and understand the movements of other people and animals.

Question 12

Which of the following statements about biological motion is FALSE?

Accepted Answer

Point-light displays require motion to convey information about biological movement. Observers cannot identify the type of animal present when the animal is still, as the perception of biological motion from point-light displays relies on the dynamic patterns created by the moving points of light.

Question 13

Research on newborn babies and newly hatched chicks indicates that:

Accepted Answer

Research on both newborn babies and newly hatched chicks has shown that both species are born with the ability to detect biological motion. This includes the ability to perceive the movement of living things, such as the movement of someone walking or the flapping of wings. This innate ability is thought to be important for survival and social interactions.

Question 14

Which of the following can observers determine solely from point-light displays?

Accepted Answer

Point-light displays can provide enough information for observers to determine a person's gender, sexual orientation, and emotional state, despite the minimal visual information provided. This is because human movement patterns contain cues related to these characteristics that can be perceived even in reduced forms of visual presentation.

Question 15

Which of the following statements is TRUE?

Accepted Answer

Research in psychology has shown that both inverted faces and inverted bodies in a point-light display are difficult to perceive due to the disruption of normal perceptual processes used for upright stimuli.

Question 16

A string of lights in a store window are set up in such a way that one light flashes, followed by a second one that is adjacent to the first, followed by a third one, etc.
-If the timing between flashes is 60 milliseconds, what will observers perceive?

Accepted Answer

The answer of A string of lights in a store...

Question 17

A string of lights in a store window are set up in such a way that one light flashes, followed by a second one that is adjacent to the first, followed by a third one, etc.
-If the timing between flashes is 100 milliseconds, what will observers perceive?

Accepted Answer

The phi phenomenon is the optical illusion of perceiving continuous motion between separate objects viewed rapidly in succession. In this case, the flashing lights create the perception of movement.

Question 18

A string of lights in a store window are set up in such a way that one light flashes, followed by a second one that is adjacent to the first, followed by a third one, etc.
-If the timing between flashes is 300 milliseconds, what will observers perceive?

Accepted Answer

The answer of A string of lights in a store...

Question 19

A flip book uses what kind of illusory movement?

Accepted Answer

A flip book uses stroboscopic illusory movement, which is based on the persistence of vision. The brain perceives a series of rapidly moving, still images as a continuous motion. This phenomenon is similar to watching a movie or animation.

Question 20

Saturday morning cartoons use what kind of illusory movement?

Accepted Answer

Stroboscopic illusion is the illusory movement that is often used in Saturday morning cartoons. This illusion occurs due to the rapid succession of still images, giving the impression of movement.

Quiz 8: Motion

Which of the following statements is TRUE?

In order for us to detect the motion of an object, it must move at least:

Which of the following statements is TRUE?

Which of the following statements is FALSE?

Regarding our perception of self-motion, Helmholtz argued that the of information was most important while Sherrington argued that the of information was most important. Evidence supports __.

The pattern of movement on our retina is called the:

We perceive our direction of self-motion with an accuracy of __________________ or less.

As an object gets closer to you, the visual angle of the object because the object takes up a portion of your retina.

The fact that an approaching object takes up increasingly larger portions of your retina provides a motion cue called:

In motion perception, the "time to contact" is called:

Researchers use point-light displays to study our perception of:

Which of the following statements about biological motion is FALSE?

Research on newborn babies and newly hatched chicks indicates that:

Which of the following can observers determine solely from point-light displays?

Which of the following statements is TRUE?

A string of lights in a store window are set up in such a way that one light flashes, followed by a second one that is adjacent to the first, followed by a third one, etc. -If the timing between flashes is 60 milliseconds, what will observers perceive?

A string of lights in a store window are set up in such a way that one light flashes, followed by a second one that is adjacent to the first, followed by a third one, etc. -If the timing between flashes is 100 milliseconds, what will observers perceive?

A string of lights in a store window are set up in such a way that one light flashes, followed by a second one that is adjacent to the first, followed by a third one, etc. -If the timing between flashes is 300 milliseconds, what will observers perceive?

A flip book uses what kind of illusory movement?

Saturday morning cartoons use what kind of illusory movement?

Quiz 8: Motion

Which of the following statements is TRUE?

In order for us to detect the motion of an object, it must move at least:

Which of the following statements is TRUE?

Which of the following statements is FALSE?

Regarding our perception of self-motion, Helmholtz argued that the __________________ of information was most important while Sherrington argued that the __________________ of information was most important. Evidence supports __________________.

The pattern of movement on our retina is called the:

We perceive our direction of self-motion with an accuracy of __________________ or less.

As an object gets closer to you, the visual angle of the object __________________ because the object takes up a __________________ portion of your retina.

The fact that an approaching object takes up increasingly larger portions of your retina provides a motion cue called:

In motion perception, the "time to contact" is called:

Researchers use point-light displays to study our perception of:

Which of the following statements about biological motion is FALSE?

Research on newborn babies and newly hatched chicks indicates that:

Which of the following can observers determine solely from point-light displays?

Which of the following statements is TRUE?

A string of lights in a store window are set up in such a way that one light flashes, followed by a second one that is adjacent to the first, followed by a third one, etc. -If the timing between flashes is 60 milliseconds, what will observers perceive?

A string of lights in a store window are set up in such a way that one light flashes, followed by a second one that is adjacent to the first, followed by a third one, etc. -If the timing between flashes is 100 milliseconds, what will observers perceive?

A string of lights in a store window are set up in such a way that one light flashes, followed by a second one that is adjacent to the first, followed by a third one, etc. -If the timing between flashes is 300 milliseconds, what will observers perceive?

A flip book uses what kind of illusory movement?

Saturday morning cartoons use what kind of illusory movement?

Regarding our perception of self-motion, Helmholtz argued that the of information was most important while Sherrington argued that the of information was most important. Evidence supports __.

As an object gets closer to you, the visual angle of the object because the object takes up a portion of your retina.