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Test: Sleep and Consciousness - 1 - MCAT MCQ


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10 Questions MCQ Test Psychology and Sociology for MCAT - Test: Sleep and Consciousness - 1

Test: Sleep and Consciousness - 1 for MCAT 2024 is part of Psychology and Sociology for MCAT preparation. The Test: Sleep and Consciousness - 1 questions and answers have been prepared according to the MCAT exam syllabus.The Test: Sleep and Consciousness - 1 MCQs are made for MCAT 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Sleep and Consciousness - 1 below.
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Test: Sleep and Consciousness - 1 - Question 1

Which brainwave pattern is predominantly associated with deep sleep and is characterized by slow, high-amplitude waves?

Detailed Solution for Test: Sleep and Consciousness - 1 - Question 1

Delta waves are associated with deep sleep and are characterized by slow, high-amplitude brainwave patterns. They are commonly observed during stages 3 and 4 of the sleep cycle.

Test: Sleep and Consciousness - 1 - Question 2

What is the term for a sleep disorder characterized by sudden and uncontrollable episodes of daytime sleepiness?

Detailed Solution for Test: Sleep and Consciousness - 1 - Question 2

Narcolepsy is a sleep disorder characterized by excessive daytime sleepiness and sudden, uncontrollable sleep attacks. It is often accompanied by other symptoms such as cataplexy and sleep paralysis.

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Test: Sleep and Consciousness - 1 - Question 3

Which stage of sleep is associated with vivid dreaming, rapid eye movements, and muscle paralysis?

Detailed Solution for Test: Sleep and Consciousness - 1 - Question 3

REM (rapid eye movement) sleep is characterized by vivid dreaming, rapid eye movements, and temporary muscle paralysis. It is a distinct stage of sleep that occurs multiple times throughout the night.

Test: Sleep and Consciousness - 1 - Question 4

Which hormone plays a key role in regulating the sleep-wake cycle?

Detailed Solution for Test: Sleep and Consciousness - 1 - Question 4

Melatonin is a hormone produced by the pineal gland that helps regulate the sleep-wake cycle. It is released in response to darkness and helps promote sleepiness.

Test: Sleep and Consciousness - 1 - Question 5

What is the term for the condition characterized by the inability to fall asleep or stay asleep?

Detailed Solution for Test: Sleep and Consciousness - 1 - Question 5

Insomnia is a sleep disorder characterized by the persistent difficulty falling asleep or staying asleep. It can have various causes, including stress, anxiety, and medical conditions.

Test: Sleep and Consciousness - 1 - Question 6

Which brain structure is known as the "master clock" and helps regulate the timing of sleep and wakefulness?

Detailed Solution for Test: Sleep and Consciousness - 1 - Question 6

The hypothalamus is a brain structure known as the "master clock" because it helps regulate the timing of sleep and wakefulness. It receives input from various sources, including light-sensitive cells in the retina.

Test: Sleep and Consciousness - 1 - Question 7

Sleep spindles and K-complexes are characteristic of which stage of sleep?

Detailed Solution for Test: Sleep and Consciousness - 1 - Question 7

Sleep spindles and K-complexes are characteristic brainwave patterns observed during stage 2 of non-REM (NREM) sleep. Sleep spindles are brief bursts of brain activity, while K-complexes are large, high-amplitude waves.

Test: Sleep and Consciousness - 1 - Question 8

Which sleep disorder is characterized by recurrent, sudden awakenings accompanied by a sense of panic or dread?

Detailed Solution for Test: Sleep and Consciousness - 1 - Question 8

 Night terrors are sleep disorders characterized by recurrent episodes of sudden awakenings, often accompanied by intense fear, panic, or screaming. They typically occur during NREM sleep.

Test: Sleep and Consciousness - 1 - Question 9

What is the term for the phenomenon of feeling paralyzed upon waking up or falling asleep?

Detailed Solution for Test: Sleep and Consciousness - 1 - Question 9

Sleep paralysis is a phenomenon in which a person experiences temporary paralysis upon waking up or falling asleep. It is often accompanied by hallucinations and a sense of pressure on the chest.

Test: Sleep and Consciousness - 1 - Question 10

Sleepwalking is most commonly associated with which stage of sleep?

Detailed Solution for Test: Sleep and Consciousness - 1 - Question 10

Sleepwalking, also known as somnambulism, occurs during non-REM (NREM) sleep, particularly during stages 3 and 4. It involves complex behaviors, such as walking or performing tasks, while remaining asleep.

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