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[Emotions and affect in psychoanalysisis].

The goal of this paper is to give some indications on the concept of affect in psychoanalysis. There is no single theory of affect, and Freud gave successive definitions, which continue to be deepened in contemporary psychoanalysis. We review some steps of Freud works on affect, then we look into some present major questions, such as its relationship to soma, the nature of unconscious affects and the repression of affect, which is particularly developed in the field of psychoanalytic psychosomatic. From Freud's definitions of affect as one of the drive representative and as a limit-concept between the somatic and the psychic, we develop some major theoretical perspectives, which give a central place to soma and drive impulses, and which agree on the major idea that affect is the result of a process. We then note some parallelism between psychoanalysis of affect and psychology and neurosciences of emotion, and underline the gaps and conditions of comparison between these different epistemological approaches.