Question 1

To perceive motion,the brain must encode information about:

Accepted Answer

To perceive motion, the brain needs to encode information about both space and time. The brain must be able to detect changes in the position of an object over time in order to sense movement, and it must be able to interpret and analyze spatial information in order to determine the direction and speed of motion. Therefore, the best choice is A) space and time.

Question 2

A moving object stimulates different locations at different time points on a stationary viewer's:

Accepted Answer

When a moving object is viewed by a stationary observer, it stimulates different locations on the retina at different times. The retina is responsible for converting light into neural signals that travel along the optic nerve to the brain, where they are processed to create the perception of movement. Therefore, the correct answer is the retina (B). The cornea (C) and lateral geniculate nucleus (D) are also involved in vision, but they do not play a direct role in detecting movement.

Question 3

Sound waves are:

Accepted Answer

Sound waves are changes in air pressure unfolding over time. The vibration of the ear drum and the rhythmic firing of hair cells in the basilar membrane are responses to these pressure changes. Vibrations in environmental stimuli may create sound waves, but not all vibrations are sound waves.

Question 4

Larry is at a stock-car racing event and has been watching cars race across his visual field from left to right for an hour.Hungry,he redirects his attention and focuses on the concession stand.To his surprise,it appears to be moving:

Accepted Answer

Larry was watching objects moving from left to right for an hour, so when he shifts his attention to the concession stand, it will appear to move in the opposite direction, which is from right to left. This is an example of motion aftereffect or the waterfall illusion.

Question 5

A region in the _____ lobe termed _____ is involved in perceiving motion.

Accepted Answer

The region in the temporal lobe termed MT (medial temporal) is involved in perceiving motion.

Question 6

Counting how often the peaks of a sound wave pass a microphone is a measure of its:

Accepted Answer

Counting how often the peaks of a sound wave pass a microphone is a measure of its frequency. Amplitude refers to the intensity of the sound wave, complexity refers to the variety of frequencies present in the sound wave, and decibel level is a measurement of the sound wave's intensity relative to a reference level.

Question 7

The successively flashing lights of a Las Vegas casino produce a perceptual response similar to that of:

Accepted Answer

The successively flashing lights of a Las Vegas casino produce a perceptual response similar to that of an animated movie because both rely on the phenomenon of persistence of vision to create the illusion of continuous motion.

Question 8

The research on inattentional blindness has important implications for:

Accepted Answer

Inattentional blindness highlights the dangers of engaging in distracted driving behaviors such as talking on the phone. Drivers who are distracted are at higher risk of failing to notice important information in their field of vision, increasing the likelihood of accidents.

Question 9

University students talking on cell phones while walking through campus were much less likely to notice a clown ride past them on a unicycle than were students not talking on cell phones,BEST illustrating _____ blindness.

Accepted Answer

Inattentional blindness refers to the phenomenon of not noticing an unexpected stimulus when attention is focused elsewhere. In this scenario, the students' attention was focused on their cell phone conversation, and as a result, they were less likely to notice the clown on a unicycle passing by.

Question 10

The perception of movement as a result of alternating signals appearing in rapid succession in different locations is termed:

Accepted Answer

The phenomenon described is that of apparent motion, which refers to the perception of movement based on rapidly alternating signals in different locations.

Question 11

Meg orders food at the counter of her favourite fast-food restaurant.The employee who takes her order steps aside and another employee then takes Meg's money.Although the two employees look somewhat different,Meg perceives that it is the same person who both took her order and money.This failure to perceive BEST illustrates _____ blindness.

Accepted Answer

This scenario illustrates change blindness, where Meg fails to notice the change in the person taking her order and the person taking her money, despite the differences in appearance.

Question 12

Because Jax is so focused on watching hockey on television,he fails to notice that his toddler is covering the walls in crayon.This failure to perceive BEST illustrates _____ blindness.

Accepted Answer

Inattentional blindness is the failure to notice unexpected stimuli in one's surroundings when focused on a specific task or goal, such as watching TV in this scenario.

Question 13

The waterfall illusion is analogous to which other visual phenomenon?

Accepted Answer

The answer of The waterfall illusion is analogous to which...

Question 14

Hallucinations arising from eye disease are symptoms of a disorder termed:

Accepted Answer

Hallucinations arising from eye disease are a classic symptom of Charles Bonnet syndrome. Macular degeneration, glaucoma, and retinopathy can all potentially cause visual impairments and vision loss, but do not specifically cause hallucinations.

Question 15

Another term for the frequency of a sound wave is its:

Accepted Answer

The frequency of a sound wave refers to how often the wave cycles per unit of time and is measured in hertz (Hz). The wavelength is the distance between two corresponding points on a wave, such as the crest or trough. Therefore, another term for the frequency of a sound wave would be its wavelength, as they are directly related.

Question 16

Change blindness is a result of:

Accepted Answer

Change blindness occurs when people fail to notice changes in their visual environment, and this is often due to a lack of attention or failure to focus on the relevant details. This is why sometimes we don't notice small changes in our surroundings, and it is not necessarily related to the physical properties of the eye or brain function.

Question 17

Hallucinations occur in Charles Bonnet syndrome due to:

Accepted Answer

Hallucinations in Charles Bonnet syndrome are believed to be a result of the brain compensating for sensory deprivation caused by eye disease. The brain fills in the missing visual information with images that are not actually present in the visual field.

Question 18

Damage to area _____ in the _____ stream leads to a deficit in motion perception.

Accepted Answer

Damage to area MT in the dorsal stream leads to a deficit in motion perception.

Question 19

A psychology professor decides to play a practical joke on a colleague in the History Department.While the historian is giving a lecture on the first day of class,the psychology professor interrupts and asks to speak with her outside the classroom.While they are conversing,all the students leave through a back door and are replaced with a completely new group of students.Upon returning,the history professor continues her lecture without noticing that the students are different,illustrating:

Accepted Answer

Change blindness is a phenomenon where a person does not notice a significant change in a visual scene, such as the replacement of one group of students with another.

Question 20

Katie is at Niagara Falls,staring at the downward rush of the water for several seconds.When she then looks at the nearby trees and rocks,they will seem to be:

Accepted Answer

This is due to the waterfall causing a visual illusion called the "waterfall effect" which makes stationary objects seem to move upwards after staring at the downward motion of the water for a period of time.

Quiz 4: Sensation and Perception