While in the middle of a conversation with his co-worker, Jackson unexpectedly slipped into a state of sleep, falling to the floor as he lost control of all the muscles in his body. Jackson appears to have a condition called
Table of contents
- 1. Introduction to Psychology1h 43m
- 2. Psychology Research2h 20m
- 3. Biological Psychology2h 41m
- 4. Sensation and Perception28m
- 5. Consciousness and Sleep32m
- 6. Learning1h 26m
- 7. Memory34m
- 8. Cognition37m
- 9. Emotion and Motivation35m
- 10. Developmental Psychology1h 20m
- 11. Personality1h 17m
- 12. Social Psychology1h 18m
- 13. Stress and Health41m
- 14. Psychological Disorders1h 27m
- 15. Treatment1h 24m
5. Consciousness and Sleep
Sleep
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
A sudden loss of muscle tone is called
A
narcolepsy.
B
REM paralysis.
C
cataplexy.
D
somnambulism.

1
Begin by understanding the key terms related to sleep disorders: narcolepsy, REM paralysis, cataplexy, and somnambulism.
Narcolepsy is a chronic sleep disorder characterized by overwhelming daytime drowsiness and sudden attacks of sleep.
REM paralysis refers to the temporary inability to move or speak while falling asleep or upon waking, often associated with REM sleep.
Cataplexy is a sudden and transient episode of muscle weakness accompanied by full conscious awareness, typically triggered by emotions such as laughter or anger.
Somnambulism, commonly known as sleepwalking, involves performing complex behaviors while in a state of sleep.
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