2020
Cairn
Camille Jaccard, « Le langage de perroquet comme symptôme : Présentation de la thèse de médecine de Lucien Cotard, Contribution à l’étude sémiologique du psittacisme et de ses divers aspects en clinique psychiatrique, Paris, G. Steinthal, 1908 », PSN, ID : 10670/1.8d0da8...
This article presents Lucien Cotard’s medical thesis (1908) devoted to the study of the symptom called psittacism (parrot language) and designating a speech without thought. The contribution of this young physician is situated in the history of the symptomatology of madness and in the general field of the relationship between words and ideas. We highlight the contribution of the alienist Jules Séglas and the philosopher Ludovic Dugas to this thesis work. Cotard’s treatment in a medical way of a subject that was originally part of philosophical psychology is defined. We explain how the author classifies the different varieties of this symptom observed in his clinical practice and how he describes the psychological processes responsible for this language disorder. Finally, we question the fate of this notion in twentieth century psychiatry by emphasizing its links with the concept of verbal discordance developed by Philippe Chaslin.