Psychology of Sleep and Its Measurement

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Questions and Answers

What is a common consequence of not getting enough sleep?

Enhanced emotional stability

Improved cognitive function

Increased energy levels

Accidents such as the Exxon Valdez disaster (correct)

Which sleep disorder is characterized by sudden, uncontrollable sleep attacks?

Insomnia

Narcolepsy (correct)

Limb Movement Disorders

Circadian Rhythm Disorders

What does EEG measure in relation to sleep?

Heart rate variability

Body temperature changes

Respiratory rate

Neuronal activity through electrical signals (correct)

What behavioral characteristic is NOT associated with sleep?

Increased responsiveness to stimuli Signup and view all the answers

How can you determine if someone is in a state of sleep?

Physical quiescence and reduced arousal Signup and view all the answers

Which disorder involves unusual behaviors during sleep such as sleepwalking?

Parasomnias Signup and view all the answers

What impact does sleep deprivation have on the EEG?

Decreased amplitude of electrical signals Signup and view all the answers

Which of the following is NOT listed as a benefit of healthy sleep?

Decreased lifespan Signup and view all the answers

What is an essential feature of the behavioral definition of sleep?

Reversible disengagement Signup and view all the answers

What is one of the signs of insufficient sleep?

Mood swings or irritability Signup and view all the answers

According to the content, how many hours of sleep is generally recommended to feel at your best?

7 to 9 hours Signup and view all the answers

Which factor is mentioned that may impact sleep patterns in different age groups?

Age and biological rhythms Signup and view all the answers

What strategy is proposed for improving sleep quality?

Implementing evidenced-based strategies Signup and view all the answers

Among the listed activities, which one is most inhibited by lack of sleep?

Ability to socialize Signup and view all the answers

Which of the following statements reflects a common misconception about sleep?

Sleep deprivation can enhance performance Signup and view all the answers

What aspect of sleep is NOT mentioned as a reason why it might 'robb' years from our lives?

Neglecting personal hygiene Signup and view all the answers

Study Notes

Defining Sleep

Sleep is a reversible state of perceptual disengagement from, and unresponsiveness to, the environment.
Sleep is characterized by typical behavioral concomitants (e.g., recumbent, closed eyes)
Sleep is observable and reversible.
Sleep is a complex process, critical for physical and mental health.

Measuring Sleep

Polysomnography is a comprehensive sleep study used to diagnose sleep disorders.
Polysomnography measures brain activity (EEG), eye movements (EOG), and muscle activity (EMG).
Actigraphy is a non-invasive method that measures movement to assess sleep duration and timing.
Sleep surveys and questionnaires are used to collect subjective information about sleep habits and quality.

Why We Sleep

Sleep is essential for cognitive function, memory consolidation, and emotional regulation.
Sleep deprivation can lead to impaired alertness, attention, and decision-making.
Insufficient sleep can also increase the risk of chronic diseases such as cardiovascular disease, diabetes, and obesity.

Sleep Disorders

Insomnia is the most common sleep disorder, characterized by difficulty falling asleep or staying asleep.
Circadian rhythm disorders involve problems with the body's natural sleep-wake cycle.
Parasomnias are sleep disorders that involve abnormal behaviors or experiences during sleep.
Limb movement disorders such as restless leg syndrome (RLS) are characterized by involuntary movements of the legs.

Sleep Metrics - Neurophysiological

Electroencephalogram (EEG) is a neurophysiological measure that records electrical activity in the brain.
EEG amplitudes reflect neuronal synchrony.
Higher amplitude EEG signals occur during sleep when neurons are more synchronized.

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Description

Explore the intricacies of sleep, including its definition, importance, and methods of measurement. This quiz covers key concepts like polysomnography, actigraphy, and the consequences of sleep deprivation on cognitive functions. Test your knowledge about why sleep is crucial for mental and physical health.