The aim of this article is to demonstrate that difficulties to define "psychosocial risks" is the consequence of the methodological orientation taken in Nasse-Légeron's report (2008). This orientation, etablishes the primauty of the measure on the psychosocial phenomena, and considers it in a linear causal schema. The Gollac's report (2011), without radically break up with the previous report, tries to bring an approach including a subjective dimension.
Les risques psychosociaux : un vide conceptuel ?