FOUNDATIONS: EEG RHYTHMS Flashcards
Extra readings from the textbook
1
Q
Delta rhythm:
A
Slow <4hz and large in amplitude
- Deep sleep
2
Q
Theta rhythm:
A
4-7 Hz
- Can occur in sleeping and awake states
3
Q
Alpha rhythms:
A
8-13 Hz
- largest over the occipital cortex
- Quiet and waking states
4
Q
Mu Rhythms;
A
- Similar to alpha frequency BUT largest over the MOTOR and SOMATOSENSORY areas
5
Q
Beta Rhythms:
A
15-30 Hz
6
Q
Gamma Rhythms:
A
Fast.
30-90 Hz and in the activates cortex
7
Q
What are brief 8-14 Hz waves associated with sleep?
A
Spindles
8
Q
What are brief bouts of 80-200 Hz oscillations?
A
Ripples
9
Q
What is the K complex?
A
Waveform occurring in stage 2 of NREM (non rapid eye movement) sleep
