An EEG can measure all brain activity?
EEG rhythms during sleep (awake to Stage 4) are generally in the order of . . ?
Beta, Alpha, Theta, Delta, Spindle + K Complex
Alpha, Beta, Delta, Theta, Spindle + K Complex
Alpha, Beta, Spindle + K Complex, Delta, Theta
Alpha, Beta, Theta, Spindle + K Complex, Delta
REM Sleep is characterised by:
Alpha-like rhythms
Beta-like rhythms
Theta-like rhythms
The presence of K complexes
Heart rate is reduced in REM sleep compared to non-REM sleep
Respiration rate lowers during non-REM sleep
In REM sleep:
Body-wide muscle paralysis occurs
Dreaming occurs
Sleepwalking is most likely to occur
EEG shows low amplitude
Low brain activity overall
Begins shortly after a sharp spike in 5-HT containing neurons
Delta rhythms occur in Stage 4 non-REM sleep
In deep sleep, pyramidal cell activity in the cortex is fast and irregular
In epilepsy, absence seizures are characterised by:
Low frequency EEG
High frequency EEG
Low amplitude, irregular
High amplitude, synchronous
Cataplexy is where the sufferer cannot stay awake during the day
The circadian rhythm is controlled by the SCN in the amygdala
There is an increase in the firing of 5-HT and NA-containing neurons before waking up:
