This study will be a national, multicenter, randomized, open label, comparative study evaluating the impact of 6-month collective embodied musical learning program on attentional deficits, in comparison with a control group receiving standard care.
Patients will be randomized in each center in 2 groups: one group will participate in weekly musical learning sessions, the other one will beneficit of standard care.
The study will be conducted in 2 phases:
* Phase 1 (six months of collective rhythmic, vocal and corporal musical training): 6 groups of 10 patients will participate in 6-month collective musical training provided by a professional music teacher. Sessions will start no later than 3 months after the inclusion, at the rate of one session per week for a period of 6 months (24 sessions in all, as part of a pedagogical project). Each session lasts one hour.
* Phase 2: a post-remediation follow-up period of 3 months (after the musical training sessions have stopped) to evaluate the potential lasting effect of group musical training on cognitive disorders and negative symptoms in patients.
For each patient, the duration of the protocol is 9 months, with assessment visits scheduled at regular 3-month intervals (Inclusion, M3, M6 and M9) for a total of 4 visits. Before the inclusions begin, 6 music teachers will be trained in the musical learning method developed for this project (one teacher in each participating town : Bayonne, Lyon, Marseille, Paris, Toulouse).