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Circadian rhythm: Suprachiasmatic n. of hypoth.--entrainment

SLEEP: Bremer (1937) - cerveau isolé, encephale isolé (reticular formation) Rapid eye movement (REM) sleep --dreaming Slow-wave sleep (NREM ) – 4 stages

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Circadian rhythm: Suprachiasmatic n. of hypoth.--entrainment

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  1. SLEEP: Bremer (1937) - cerveau isolé, encephale isolé (reticular formation) Rapid eye movement (REM) sleep --dreaming Slow-wave sleep (NREM ) – 4 stages REM: a) EEG (electroencephalogram)- beta, theta b) Atonia– anti-gravity c) Pontine-geniculate-occipital (PGO) spikes Serotonin --- reduced Norepinephrine --- reduced » depression Tegmental Fields in Reticular Formation NREM- Anterior/preoptic hypoth--delta sleep peptide Why sleep? NREM - restoration: growth hormone (pituitary) REM - memory, protein synth, evol simulation Circadian rhythm: Suprachiasmatic n. of hypoth.--entrainment

  2. Anterior/ Preoptic Hypothalamus NREM Tegmental Fields -REM Anterior

  3. 90 yrs.

  4. Dreams 1. Freud--- unconscious ( sex, aggression ) - latent content 2. Jung--- collective unconscious 3. Hobson & McCarley--- PGO spikes, brain scenario 4. Winson, Crick--- hippocampal memory mech. Dream>>>algorithm>>theta 5. Revonsuo--- evolution: simulate and rehearse reproduction and threat scenarios Video: Dreams

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