Poe's spectres thus acquired a convincing malignity possessed by none of their predecessors, and established a new standard of realism in the annals of literary horror. The impersonal and artistic intent, moreover, was aided by a scientific attitude not often found before; whereby Poe studied the human mind rather than the usages of Gothic fiction, and worked with an analytical knowledge of terror's true sources which doubled the force of his narratives and emancipated him from all the absurdities inherent in merely conventional shudder-coining. This example having been set, later authors were naturally forced to conform to it in order to compete at all; so that in this way a definite change began to affect the main stream of macabre writing. Poe, too, set a fashion in consummate craftmanship; and although today some of his own work seems slightly melodramatic and unsophisticated, we can constantly trace his influence in such things as the maintenance of a single mood and achievement of a single impression in a tale, and the rigorous paring down of incidents to such as have a direct bearing on the plot and will figure prominently in the climax. Truly may it be said that Poe invented the short story in its present form. His elevation of disease, perversity, and decay to the level of artistically expressible themes was likewise infinitely far-reaching in effect; for avidly seized, sponsored, and intensified by his eminent French admirer Charles Pierre Baudelaire, it became the nucleus of the principal aesthetic movements in France, thus making Poe in a sense the father of the Decadents and the Symbolists.