An Examination of Electroencephalograph (EEG) Waves as Related to Sleep

question 5

Multiple Choice

An examination of electroencephalograph (EEG) waves as related to sleep and being awake suggest that the EEG waves:

• A) are similar when a person is in stage 4 sleep and awake.
• B) become shorter and choppier as a person moves from stage 1 to stage 4 sleep.
• C) become larger as a person goes into deeper sleep because a larger proportion of the active neurons are active at the same time.
• D) are the largest when a person is very awake because the brain is most active.

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Definitions:

Medulla

Often referred to as the medulla oblongata, it is a part of the brainstem responsible for regulating vital body functions such as breathing, heart rate, and blood pressure.

Unconscious Functions

Mental processes not present in current awareness but can influence thoughts, feelings, and behaviors.

Breathing

The process of inhaling and exhaling air in order to facilitate gas exchange within the lungs.

PET Scan

A medical imaging technique that uses radioactive tracers to visualize and measure changes in metabolic processes and other physiological activities in the body.