Abstract
THIS is a small book, but an important contribution to the study of mental imagery in general, nd in particular of that kind of imagery which is experienced in the hypnagogie state. Many people, just before falling asleep, or waking fully from sleep, pass through a stage in which they have visual (and sometimes other) imagery of a very striking kind. The fact has been known and reported upon in psychological literature for something more than a ceniury; but the interesting problems to which it gives rise have for the most part been cursorily and not very satisfactorily dealt with. Dr. Leroy limits himself to a psychlogical treatment of his subject, and puts his book before the public as a contribution to the psycho- logy of hallucinations and dreams. For the physiological and pathological aspects of hypnagogic imagery he believes that methodical experimental work is still greatly needed; but in the present investigation he relies mainly upon his own experiences and those of persons whose sincerity he is able personally to guarantee.
Les visions de demi sommeil (hallucinations hypnagogiques).
Par Dr. Eug.-Bernard Leroy. (Bibliothèque de philosophie contemporaine.) Pp. xv + 132. (Paris: Félix Alcan, 1926.) 12 francs.
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Les visions de demisommeid (hallucinations hypnagogiques) . Nature 120, 911 (1927). https://doi.org/10.1038/120911a0
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DOI: https://doi.org/10.1038/120911a0