Apparatus for the study of sleep in chronic pontile animals

Paradoxical Sleep - A Study of its Nature and Mechanisms

Michel Jouvet
Progress In Brain Research Vol. 18 Sleep Mechanisms 1965

TABLE OF CONTENTS

Introduction

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

Discussion

(a) Duality of the states of sleep

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

Summary and Conclusions

Figures

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Figure 12 : Apparatus for the study of sleep in chronic pontile animals

The animal is placed in an incubator and its temperature maintained at a constant level (see details in the text). To obtain automatic deprivation of paradoxical sleep a system of relays (G) activates a stimulator (J) which delivers electric shocks to the cat's paw. The stimulation is interrupted on the resumption of nuchal EMG activity.

From M. Jouvet et al., 1963.