Sleep 101

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Questions and Answers

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?

<p>Stage 3/4 (A)</p> Signup and view all the answers

When does deep sleep typically occur during the night?

<p>In the first third of the night (C)</p> Signup and view all the answers

Which of the following is a characteristic of REM sleep?

<p>Paralysis of the body (D)</p> Signup and view all the answers

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

<p>Stage 2 (A)</p> Signup and view all the answers

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

<p>Revitalizing memory and intense dreaming (A)</p> Signup and view all the answers

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

<p>Waking is normal and occurs in a healthy night of sleep (B)</p> Signup and view all the answers

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

<p>REM sleep increases as the night goes on (C)</p> Signup and view all the answers

What is the primary purpose of Polysomnography (PSG)?

<p>To diagnose sleep disorders and assess sleep patterns (A)</p> Signup and view all the answers

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

<p>Electrical activity in the brain (B)</p> Signup and view all the answers

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

<p>Muscle activity during sleep (B)</p> Signup and view all the answers

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

<p>b. Electrooculogram (EOG) (C)</p> Signup and view all the answers

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

<p>c. Electrocardiogram (ECG) (B)</p> Signup and view all the answers

What does respiratory monitoring in a PSG include?

<p>d. Assesses breathing patterns via airflow chest and abdominal movements, and oxygen saturation (D)</p> Signup and view all the answers

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

<p>Sleep apnea (D)</p> Signup and view all the answers

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

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

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

<p>It is expensive and intrusive and may not give a good natural representative view of one's sleep (B)</p> Signup and view all the answers

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

<p>It uses a small wrist-worn device to detect movement. (C)</p> Signup and view all the answers

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

<p>Accelerometer or similar motion sensor (A)</p> Signup and view all the answers

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

<p>The device used is not as accurate. (A)</p> 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?

<p>It detects and records movement. (C)</p> 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?

<p>They are less intrusive and provide valuable insights into sleep quality and duration. (B)</p> Signup and view all the answers

How does total sleep time typically change with age?

<p>It decreases as age increases. (D)</p> 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?

<p>It increases with age. (D)</p> Signup and view all the answers

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

<p>It increases as age increases. (D)</p> Signup and view all the answers

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

<p>It largely decreases with age. (B)</p> Signup and view all the answers

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

<p>It decreases as age increases, but not as much as deep sleep. (A)</p> Signup and view all the answers

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

<p>It decreases as age increases. (B)</p> Signup and view all the answers

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

<p>It's involved in emotional regulation. (D)</p> Signup and view all the answers

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

<p>It reduces communication between these areas, causing the amygdala to run rampant and not be checked by the prefrontal cortex (B)</p> Signup and view all the answers

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

<p>Increased emotionality (A)</p> Signup and view all the answers

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