Between clinics and neuroscience: how to define anhedonia? – P.M. Llorca
Described by Théodule RIBOT, at the end of the XIXth century, the term “anhedonia” was a neologism forged to describe the difficulty of experiencing pleasure.
This term is found in the diagnostic criteria designating, within the DSM, the loss of capacity to experience pleasure, one of the central criteria of the depressive episode characterized. Anhedonia is also a symptom described in the negative symptoms of schizophrenic disorder.
It is a subject of both clinical and neuroscientific interest; there are indeed numerous studies in functional imaging and electrophysiology which have sought to highlight the cerebral structures involved in this process.
For more than fifteen years, anhedonia – as an inability to experience pleasure – has been decomposed on the one hand, into a dimension covering the notion of alteration of the motivation to perform a pleasurable activity, and on the other hand, into a dimension of pleasure experienced when performing a given activity. This led to the identification of distinct physiological and pathophysiological underpinnings.
During this presentation, the clinical approach of anhedonia, the identified physiopathological data, but also the status of anhedonia within the nosographic criteria will be evoked, allowing to put into perspective the function of this symptom.
The RDoC approach will also serve as a matrix for the description of anhedonia.
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When: 10 november 2020, 14h-15h30
Online conference: click here for zoom link