FOUNDATIONS: EEG RHYTHMS Flashcards Preview

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Flashcards in FOUNDATIONS: EEG RHYTHMS Deck (9)
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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