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Chapter 4: Problem 9

_________ is (are) described as slow-wave sleep. a. stage b. stage 2 c. stage 3 and stage 4 d. REM sleep

Short Answer

Expert verified
The correct answer is 'c. stage 3 and stage 4'.

Step by step solution

01

Understanding Sleep Stages

Slow-wave sleep (SWS) is the deep sleep stage. It's the period of sleep that you need in order to feel refreshed and rested in the morning. It occurs in longer periods during the first half of the night. During this stage, the body repairs tissues and strengthens the immune system.
02

Matching Sleep Stages with Definitions

Slow-wave sleep typically occurs during stages 3 and 4 of the sleep cycle. Stage 3 is the transition phase between light sleep and very deep sleep, while stage 4 is the deep sleep stage with, or Delta Sleep, where the brain produces delta waves almost exclusively. Therefore, it's during these stages that the slow-wave sleep occurs.
03

Choosing an Answer

Given the above understanding, this suggests that slow-wave sleep occurs in c. stage 3 and stage 4. This matches the options given in the question. So, the correct choice is 'c. stage 3 and stage 4'.

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