Sleep 101

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33 Questions

Which of the following best defines sleep according to the provided content?

A naturally recurring state of mind and body with altered, reduced consciousness and inhibited sensory activity

During which sleep stage do we experience a light transitional sleep, marking the beginning of drowsiness and sleep?

Stage 1

On average, how long does a complete sleep cycle, including all stages, take to occur?

90-120 minutes

During which stage of sleep does the release of growth hormone occur?

Stage 3/4

When does deep sleep typically occur during the night?

In the first third of the night

Which of the following is a characteristic of REM sleep?

Paralysis of the body

Which stage of sleep is characterized by the production of chemicals that make it difficult to be woken?

Stage 2

In addition to paralysis of the body, what is a characteristic of REM sleep?

Revitalizing memory and intense dreaming

Which of the following is true about waking during a healthy night of sleep?

Waking is normal and occurs in a healthy night of sleep

How does the amount of REM sleep typically change as the night progresses?

REM sleep increases as the night goes on

What is the primary purpose of Polysomnography (PSG)?

To diagnose sleep disorders and assess sleep patterns

What does an Electroencephalogram (EEG) measure in a polysomnography (PSG)?

Electrical activity in the brain

What does an Electromyogram (EMG) monitor in a PSG?

Muscle activity during sleep

Which component of a PSG records eye movements to help identify different sleep stages, particularly REM sleep?

b. Electrooculogram (EOG)

Which component of PSG records heart rate and rhythm during the sleep study?

c. Electrocardiogram (ECG)

What does respiratory monitoring in a PSG include?

d. Assesses breathing patterns via airflow chest and abdominal movements, and oxygen saturation

Which sleep disorder is diagnosed using the Snore Microphone in a PSG?

Sleep apnea

What is the purpose of Leg Movement Monitoring in a PSG?

To measure leg movements for diagnosing (RLS) or periodic limb movement disorder (PLMD)

What is a major limitation of polysomnography (PSG) as a method for assessing sleep?

It is expensive and intrusive and may not give a good natural representative view of one's sleep

Which of the following is a characteristic of actigraphy as a sleep monitoring method?

It uses a small wrist-worn device to detect movement.

What type of sensor is typically found in a wrist-worn actigraph used for monitoring sleep and activity?

Accelerometer or similar motion sensor

What is the primary criticism of actigraphy as a sleep monitoring method?

The device used is not as accurate.

How does an actigraph with an accelerometer provide data about a person's sleep-wake patterns and physical activity?

It detects and records movement.

What is the primary advantage of emerging EEG technologies like DREEM for assessing sleep at home over multiple nights?

They are less intrusive and provide valuable insights into sleep quality and duration.

How does total sleep time typically change with age?

It decreases as age increases.

Which of the following is true about the time it takes to fall asleep as a person gets older?

It increases with age.

How does the time spent in regular sleep change with age?

It increases as age increases.

What happens to the time spent in deep sleep (slow wave sleep) as a person ages?

It largely decreases with age.

Which of the following is true about the time spent in REM sleep as a person gets older?

It decreases as age increases, but not as much as deep sleep.

What is the trend regarding the time spent asleep while in bed as individuals age?

It decreases as age increases.

What is the role of communication between the prefrontal cortex and the amygdala?

It's involved in emotional regulation.

How does poor sleep impact the communication between the prefrontal cortex and the amygdala?

It reduces communication between these areas, causing the amygdala to run rampant and not be checked by the prefrontal cortex

What is the consequence of increased communication between the prefrontal cortex and the amygdala due to poor sleep?

Increased emotionality

Test your knowledge on sleep with this quiz! Learn about the definition of sleep and its characteristics. Choose the correct answer and enhance your understanding of this naturally recurring state of mind and body.

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