A PHA Includes All of the Following EXCEPT

question 7

Multiple Choice

A PHA includes all of the following EXCEPT

• A)lower-level discriminator.
• B)upper-level discriminator.
• C)anticoincidence circuit.
• D)amplifier.

---

Definitions:

Sleep Stages

The division of sleep into different phases or stages, including REM (rapid eye movement) and several stages of non-REM sleep, each characterized by specific brain waves and physiological states.

REM Sleep

A phase of sleep characterized by rapid eye movements, increased brain activity, and vivid dreams, playing a crucial role in emotional and mental health.

Laboratory Sleep Study

A research study conducted in a controlled environment to monitor and evaluate sleep patterns, disorders, or the effects of treatments on sleep.

Slow-Wave Sleep

A deep sleep phase characterized by slow brain waves, crucial for restorative sleep and memory consolidation.