The notion of concomitance in the Freud's metapsychology

The body-mind problem permeates the whole Freudian thought. At first, it appears linked to the question of relations brain-thought and is explicit. Then it becomes groundwater, but it's there, in operation, coming to light, for example, with the concept of drive. Rather than conclusive answers, we find points of articulation, some of which we selected in two blocks. The first block concerns the assumptions of Freudian thought, theoretical viewpoints that overdetermines the image of the psyche that Freud built. The first assumption is that the physiological and psychological processes occur as concomitant dependents and can not be reduced one to another by establishing a causal hierarchy - that is the main focus of this article. The second assumption concerns the membership of Freud to a lineage of evolutionary thought expressed in his attempt to invent a psychic phylogeny, parallel, concurrent, and dependent on a relationship of reciprocal action with biological phylogeny. The third assumption is expressed by the idea of an etiological equation, supplemented by the complementary series, suggesting that the source and the becoming of every psyche operates as a combination of quantitative factors, constitutional and accidental. The second block is formed by the metapsychological concepts of drive, affect, and id, derived from assumptions.