Each workshop will consist of three identical times. It will begin with a 15 minute introductory activity, the first goal will be to establish a relationship with patients (patients-patients and patients-caregivers) and a 40 minute cognitive stimulation, identical in the 2 groups, will be proposed and finally 5 minutes will be devoted to the closing of the session This study should highlight a positive effect of animal assisted therapy on the well-being, PBSD, depression, anxiety and cognitive abilities and a long-term retention of these positive effects.