Question 1

With the approach of night,our body temperature begins to drop.This best illustrates the dynamics of the

Accepted Answer

The circadian rhythm is a biological process that regulates the sleep-wake cycle of our body. With the approach of night, the body's temperature drops as a part of this natural rhythm. Therefore, option B is the correct answer. The hypnagogic state refers to the transitional state between wakefulness and sleep, alpha wave pattern is a type of brainwave, and REM rebound is an increase in the duration and intensity of REM sleep following a period of sleep deprivation. None of these options explain the dynamics of body temperature with the approach of night.

Question 2

Christy failed to notice that she received her ice cream in a sugar cone rather than a waffle cone as she had requested.She later indicated to another customer that she preferred sugar cones over waffle cones.Christy's behavior most clearly illustrates

Accepted Answer

Christy's behavior indicates that she did not notice the difference between the type of cones she received and had chosen. This is an example of choice blindness, which occurs when people fail to notice a mismatch between their choices and the outcomes they receive.

Question 3

Compared with evening-loving "night owls," those who are morning types tend to perform ________ in school and tend to be ________ vulnerable to depression.

Accepted Answer

Morning types tend to have better academic performance and lower vulnerability to depression compared to night owls. Research suggests that morning types are more synchronized with the typical workday schedule and have better sleep hygiene, which can lead to better academic performance and decreased risk of depression. Night owls, on the other hand, may struggle with the early morning start of the typical school day and can experience social jet lag, disrupting their sleep pattern and increasing the risk of depression.

Question 4

If asked to watch a video and press a key each time a black-shirted player passed a basketball,most research participants remained unaware of an umbrella-toting woman strolling across the video screen.This illustrated

Accepted Answer

Inattentional blindness refers to the phenomenon where individuals fail to perceive an unexpected stimulus that is in plain sight because their attention is focused on a different task or stimulus. In this case, the participants were so focused on counting the number of passes between the black-shirted players that they failed to perceive the umbrella-toting woman.

Question 5

One study simultaneously delivered a recording of men talking in participants' one ear and a recording of women talking in participants' other ear.When participants were assigned to pay attention to the women,70 percent failed to hear one of the men repeatedly say "I'm a gorilla." This failure best illustrated

Accepted Answer

The scenario described corresponds to inattentional deafness, which is the phenomenon of when we fail to hear an auditory stimulus while we are focusing our attention on another task. The fact that participants in the study were told to attend to one ear and not the other, and only 30 percent of them were able to catch the phrase "I'm a gorilla" in the unattended ear, demonstrates this phenomenon. Dual-processing refers to the idea that we can process information simultaneously on different levels, the popout phenomenon refers to when a visual stimulus automatically attracts our attention, and blindsight refers to the ability to respond to visual information without conscious awareness. None of these concepts are relevant to the scenario described.

Question 6

Circadian rhythm refers to

Accepted Answer

Circadian rhythm refers to a pattern of biological functioning that occurs on a roughly 24-hour cycle. It includes the sleep-wake cycle, hormonal fluctuations and other physiological processes.

Question 7

Fast and jerky movements of the eyes are especially likely to be associated with

Accepted Answer

Fast and jerky movements of the eyes are a defining characteristic of REM (rapid eye movement) sleep, which is a stage of sleep associated with vivid dreaming. Sleep spindles are bursts of brain activity during stage 2 of non-REM sleep, while narcolepsy and sleep apnea are sleep disorders that do not involve eye movements as defining features.

Question 8

Research on sleep and dreaming confirms that

Accepted Answer

Research has shown that the brain's auditory cortex can respond to sound stimuli during sleep, indicating that our brains continue to process sounds to some extent even when we are asleep. This is part of the reason why certain noises can wake us up or be incorporated into our dreams. Choices A, B, and D are misconceptions or generalizations that are not supported by consistent research findings.

Question 9

The relatively slow brain waves of a relaxed,awake state are called

Accepted Answer

Alpha waves are typically recorded when an individual is in a relaxed, awake state. Beta waves are more commonly associated with an active, alert state. Delta waves are associated with deep sleep, while sleep spindles are a different type of brain wave pattern that occurs during stage 2 of sleep.

Question 10

While a man provided directions to a construction worker,two experimenters rudely interrupted by passing between them carrying a door.The man's failure to notice that the construction worker was replaced by a different person during this interruption illustrates

Accepted Answer

The scenario described is a classic example of change blindness, which refers to the inability to detect substantial changes in a visual scene. In this case, the man failed to notice that the construction worker had been replaced by a different person during the interruption caused by the experimenters carrying a door. This shows that the man's attention was not focused on the construction worker, and he was unable to detect the change that occurred.

Question 11

The popout phenomenon illustrates that some stimuli almost inevitably trigger

Accepted Answer

The popout phenomenon is when a stimulus "pops out" and is immediately noticed by an observer without effortful attention. This illustrates selective attention, as the observer's attention is automatically drawn to the salient stimulus. Blindsight refers to the ability to respond to visual stimuli without conscious awareness, change blindness is the failure to detect changes in a visual scene, and choice blindness is when individuals are unaware of the reasons for their choices.

Question 12

Alexis most enjoys talking and socializing with friends late in the evening.Her mother,however,is most energized for social interactions about an hour after breakfast.This difference between Alexis and her mother is best explained by the fact that age and experience tend to alter our

Accepted Answer

The fact that Alexis and her mother have different preferences for socializing at different times of day suggests that they have different circadian rhythms. These rhythms, which are regulated by an internal biological clock, tend to shift as we age and can be influenced by our daily routines and experiences.

Question 13

In two phone interview experiments,most participants failed to notice that the female interviewer to whom they were responding changed after the third question of the interview.This best illustrated

Accepted Answer

The participants' failure to notice a change in the interviewer's gender best illustrates change blindness, which refers to the failure to detect changes in visual stimuli when they occur during brief interruptions in the visual field or attention. This suggests that people may not always have a full and accurate representation of the visual world, but rather an incomplete and selective one. The cocktail party effect refers to the ability to focus one's auditory attention on a particular stimulus even while filtering out a range of other stimuli (like a person's name being heard in a noisy room). The popout phenomenon refers to the rapid and effortless identification of a target stimulus that is distinct from the surrounding stimuli in a visual display. Blindsight refers to the residual ability to detect visual stimuli despite damage to the primary visual cortex, often demonstrated by a person's ability to correctly guess the location or movement of objects they cannot consciously see.

Question 14

A periodic,natural loss of consciousness that involves distinct stages is known as

Accepted Answer

The periodic, natural loss of consciousness that involves distinct stages is known as sleep. The circadian rhythm refers to the 24-hour cycle of biological processes in living beings, including sleep-wake cycles. Narcolepsy is a sleep disorder characterized by sudden and uncontrollable episodes of falling asleep during the day. Hallucinations are sensory experiences that occur without external stimuli and can occur during sleep or wakefulness, but they are not synonymous with sleep itself.

Question 15

Jordanna has decided to go to bed early.Although her eyes are closed and she's very relaxed,she has not yet fallen asleep.An EEG is most likely to indicate the presence of

Accepted Answer

Alpha waves are typically associated with a state of relaxation while still awake, often observed when a person is calm with closed eyes just before falling asleep. Delta waves, sleep spindles, and rapid eye movements are characteristics of deeper stages of sleep or specific sleep phases, not the relaxed, wakeful state described.

Question 16

Most college students are "owls," with performance ________ across the day.Most older adults are "larks," with performance ________ as the day progresses.

Accepted Answer

Studies have shown that college students tend to be more alert and perform better during late-night hours, making them "owls." On the other hand, older adults tend to be more alert and have better performance in the morning, making them "larks." Therefore, performance tends to improve for owls as the day progresses, while it declines for larks.

Question 17

Failing to see visible objects when our attention is directed elsewhere is called

Accepted Answer

Inattentional blindness refers to the psychological phenomenon of failing to observe visible objects when our attention is directed elsewhere.

Question 18

Research participants picked one of two photos of female faces as more attractive.When researchers cleverly switched the photos,participants readily explained why they preferred the face they had actually rejected.Their behavior illustrated

Accepted Answer

The behavior of the research participants illustrates choice blindness, which occurs when people make a choice without being aware of the reasons for their choice and are therefore able to explain away their actual decision.

Question 19

When working an occasional night shift,people often feel groggiest in the middle of the night but experience new energy around the time they normally would wake up.This best illustrates the impact of

Accepted Answer

The symptoms described suggest that the individual is experiencing the effects of their circadian rhythm - the internal biological clock that regulates sleep-wake cycles. This rhythm is responsible for making us feel most alert during the day and drowsier at night. When someone works a night shift, their circadian rhythm can be disrupted, resulting in grogginess at unexpected times. However, when their body clock anticipates the time they would normally wake up (even if they've been working all night), they may experience a boost in energy because their brain is primed to be awake during that time.

Question 20

Crashes and near-crashes have been observed to ________ when teen drivers are reaching for a cell phone and to ________ when they are dialing a cell phone.

Accepted Answer

According to the given information, crashes and near-crashes increase when teen drivers are reaching for a cell phone and also when they are dialing a cell phone. Therefore, the best choice is D - increase; increase.

Quiz 4: Consciousness and the Two-Track Mind