PSYCH261 Lecture Notes - Nocturnal Enuresis, Retinal Ganglion Cell, Superior Colliculus
24 Mar 2013
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Alpha activity smooth 8-12 hz (relaxed) Beta activity irregular 13-20 hz (arousal) Sleep spindle short bursts of 12-14. Delta activity less than 4 hz (20- Desynchronised eeg, some theta, rapid eye movements. Sleep is not a state of unconsciousness. Mental activity may occur during both rem and slow-wave sleep. Dreaming has been shown to invoke decreased frontal and increased occipital blood flow. Symbolic fulfillment of unconscious wishes/working through repressed ideation manifest and latent contents. Sleep apnea cessation of breathing while sleeping. Complete paralysis during waking (sometimes referred to as drop seizures ). Paralysis just prior to sleep or upon waking. Cataplectic seizures can be triggered by extreme events. Individual fails to become paralyzed during rem and thus acts out dreams. Sleep-related eating disorder eating during sleepwalking, often without recollection. Stage 4 and rem sleep most important. No compelling relationship between amount of daily exercise and amount of sleep.
