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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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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


Anterior/

Preoptic

Hypothalamus

NREM

Tegmental

Fields -REM

Anterior



Dreams
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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