Quantitative Evaluation of Apathy Close to Real Life Situation by Means of a Multimodal Sensor System Integrated.

Inclusion Criteria: * Diagnosis of Frontotemporal Dementia (FTD) according to diagnostic criteria reported by Rascovsky et al. (2011). * Understanding of the instructions and capacity to realize the cognitive tasks. * Capacity to read, to understand and to sign legal document of information * Capacity for informed consent for research, capacity to sign consent * MMSE score \> 20 * Absence of other cerebral pathology. * Absence of psychiatric disease interfering with the assessment of the tests * Absence of excessive psychotropic use * Access to National Healthcare Insurance * Accompanied with a caregiver Exclusion Criteria: * Excessive psychotropic use * Incapacity or refusal to realize the experimental tasks * Subject deprived of freedom by an administrative or court order * Subject under legal protective measure. * Incapacity for informed consent for research * Participation in another biomedical research * Airway obstruction risk * Reduction of activity not attributable to another chronic pathological condition