Maïté Camara Lopez is a phd student supported by a Greentic grant. She works on a novel neuropsychological assessment tool for person with cognitive disorders using virtual reality (Realistic Observations in Game and Experience in Rehabilitation, R.O.G.E.R. project). The purpose of this thesis is to assess the relevance of a more integrated assessment of cognitive functions in virtual reality. Indeed, by engaging the patient in environmental activities close to the reality, it will be able to better tackle the problems patients undergo in their daily life. This project will focus on prospective memory and on the influence of divided attention on the latter.