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Variations in Consciousness: Stages of Sleep and EEG

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Variations in Consciousness: Stages of Sleep and EEG

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Questions and Answers

Which stage of sleep is associated with Beta brain waves?

Alpha sleep (correct)

REM sleep

Delta sleep

Theta sleep

What device is used to monitor the electrical activity of the brain during sleep?

EMG

EOG

EKG

EEG (correct)

Which stage of sleep is characterized by muscle atonia?

Delta sleep

Theta sleep

REM sleep (correct)

Alpha sleep

What does an EMG measure during sleep?

Muscle movements Signup and view all the answers

Which stage of sleep is it difficult to wake people up from?

Delta sleep Signup and view all the answers

How does REM sleep typically change throughout the night?

It becomes longer as the night goes on. Signup and view all the answers

What role does the suprachiasmatic nucleus play in sleep regulation?

Regulating melatonin secretion based on exposure to light Signup and view all the answers

Why is the presence of sunlight important for the regulation of melatonin secretion?

Sunlight inhibits melatonin secretion, keeping individuals awake Signup and view all the answers

What is a common effect of sleep deprivation on cognitive abilities?

Impaired attention and reaction time Signup and view all the answers

How does being a 'short sleeper' differ from having insomnia?

Insomniacs have no complaints about their sleep duration, unlike short sleepers Signup and view all the answers

According to the Activation Synthesis Model, what are dreams considered to be?

Random signals from lower brain centers synthesized by the cortex Signup and view all the answers

Which theory of dreaming suggests that dreams are a way to work through everyday problems?

Cartwright's theory of problem-solving in dreams Signup and view all the answers