Paradoxical Sleep - A Study of its Nature and Mechanisms
Michel Jouvet
Progress In Brain Research Vol. 18 Sleep Mechanisms 1965
Evidence of the duality of the states of sleep

(a) EEG and behavioural findings

(b) Phylogenetic findings

(c) Ontogenetic findings

(d) Functional findings

(e) Structural findings

Mechanisms of paradoxical sleep

(a) Producing P.S. as a reflex

(b) Results of deafferentations

(c) Role of the hypothalamus and pituitary

(d) Deprivation of P.S. in the pontile animal

(e) Effects of temperature on P.S. in the pontile animal

(f) Action of gamma-butyrolactone (G.B.L.)

(g) Osmolarity of the blood and paradoxical sleep


(a) Duality of the states of sleep

(b) Mechanisms underlying the appearance of P.S.

Summary and Conclusions



Printable version

Figure 4 : Persistence of phasic electrical activity in the visual system after enucleation of the eyeballs

(A) Phasic spikes during P.S. in the pontine reticular formation (PRF), lateral geniculate (Lat. gen.) and visual cortex (Vis. cx), with concurrent eye movements (EOG) and EMG activity from the m. rectus oculi internus (EMG m. rect. oc. int.).

(B) Four days after enucleation of the eyeballs. Persistence of phasic phenomena during P.S.

From Michel et al., 1964.

Next page