Stages Of Sleep Flashcards
1
Q
Beta wave
A
Highest frequency (14-30Hz) Lowest amplitude
2
Q
Stage 1
A
Reduced consciousness
Slow theta waves (8 Hz)
Also seen in deep meditation
3
Q
Stage 2
A
Characterised by sleep spindle and K complexes
Sleep spindle - burst of rapid rhythmic Activity
K complexes - large spikes
4
Q
Stage 3
A
20% of total sleep fine Reflected on EEG as delta waves Highest amplitude Lowest frequency Lose all bodily awareness
