EEG
What is the name of the device that gets placed on one's head?
Electrodes
What does amplitude mean?
Height of oscillations
Amplitude increases
Frequency decreases
Synchrony increases
What stages do NREM encapsulate?
1-4
What does EEG stand for?
Electroencephalogram
What does frequency mean and how is it measured?
Amount of oscillations in a given time, in Hertz
What does REM stand for
Rapid Eye Movement
What are the EEG results for REM?
Low amp, high freq, and low synchrony
What are the results called for EEG's
Oscillations
What does synchrony mean?
How uniform the oscillations are
What sleep stage is most synonymous with sleep spindles?
Stage 2
What are the deep sleep like states for REM?
Deregulated body temperature, Atonia, inhibition of reflexes, and paralysis
What does an EEG measure?
Electrical activity, which is an indirect measure of brain activity
How many actions in a second
What are the waves for Awake States? Sleep States? What are their Hz?
Beta(15-30) and Alpha(9-14)
Theta(4-8) and Delta(1-3)
Why is REM called paradoxical sleep?
REM has both deep sleep, coma-like and awake states for body and mind that happen simultaneously
What are the advantages and disadvantages of EEG's?
Advantages:
In real time, Easy to use, Inexpensive
Disadvantages:
Strictly cortical readings, Cannot record from single neurons
If an EEG oscillates 30 times in 6 seconds, how many Hz is that?
5
What are the most common waves in REM sleep?
Beta waves (15-30Hz)
What are the trends for the parasympathetic response, the sympathetic response, overall neural activity, metabolic rate, and body temperature in NREM? For REM?
PR: Increasing trend, Inhibited
SR: Decreasing trend, Activated
ONA: Decreasing trend, High
MR: Decreasing trend, High
BT: Decreasing temp, Deregulated