Sleep 101

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

A state characterized by heightened sensory perception and vivid dreams

A state of high consciousness and intense sensory activity

A state of constant muscle activity and sensory awareness

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

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

Stage 2

REM stage

Stage 3/4

Stage 1 (correct)

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

90-120 minutes (correct)

120-150 minutes

60-90 minutes

30-60 minutes

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

Stage 3/4 Signup and view all the answers

When does deep sleep typically occur during the night?

In the first third of the night Signup and view all the answers

Which of the following is a characteristic of REM sleep?

Paralysis of the body Signup and view all the answers

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

Stage 2 Signup and view all the answers

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

Revitalizing memory and intense dreaming Signup and view all the answers

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 Signup and view all the answers

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

REM sleep increases as the night goes on Signup and view all the answers

What is the primary purpose of Polysomnography (PSG)?

To diagnose sleep disorders and assess sleep patterns Signup and view all the answers

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

Electrical activity in the brain Signup and view all the answers

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

Muscle activity during sleep Signup and view all the answers

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

b. Electrooculogram (EOG) Signup and view all the answers

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

c. Electrocardiogram (ECG) Signup and view all the answers

What does respiratory monitoring in a PSG include?

d. Assesses breathing patterns via airflow chest and abdominal movements, and oxygen saturation Signup and view all the answers

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

Sleep apnea Signup and view all the answers

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

To measure leg movements for diagnosing (RLS) or periodic limb movement disorder (PLMD) Signup and view all the answers

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 Signup and view all the answers

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

It uses a small wrist-worn device to detect movement. Signup and view all the answers

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

Accelerometer or similar motion sensor Signup and view all the answers

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

The device used is not as accurate. Signup and view all the answers

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

It detects and records movement. Signup and view all the answers

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. Signup and view all the answers

How does total sleep time typically change with age?

It decreases as age increases. Signup and view all the answers

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

It increases with age. Signup and view all the answers

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

It increases as age increases. Signup and view all the answers

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

It largely decreases with age. Signup and view all the answers

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. Signup and view all the answers

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