Absence of fast cortical activity

A Study of the Neurophysiological Mechanisms of Dreaming

M. Jouvet and D. Jouvet Electroenceph. Clin. Neurophysiol. 1963 Suppl. 24

TABLE OF CONTENTS

Part 1

I. Two EEG patterns of physiological sleep in intact cats

II. The neural structures responsible for RPS

III. Structures responsible for somato-vegetative phenomena

IV. Mechanisms of the Rhombencephalic Phase of Sleep

V. Ontogenesis of the RPS

Part 2

A. Normal subjects

B. Patients with brain lesions

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Fig. 9 : Absence of fast cortical activity

Absence of fast cortical activity

during RPS after total destruction of the septum. A. Arousal: fast cortical (CSM), hippocampal (H) and reticular mesencephalic (FRM) activity. B. SPS: spindles and slow waves, persistance of the EMG activity of the neck. C. RPS: there is a discrete activation at the cortical level, but some spiddles persist. No theta rhythm at the hippocampal level. Disappearance of the EMG

Scale: 2 sec, 50 microV.