200 patient , in 15 nursing homes randomly will be exposed two months in the control condition (usual intervention) and 4 months in the experimental condition (chariot-flash intervention). The experimental condition is to propose the "chariot-flash" in emergency during the emergence or increase of productive symptoms.

200 patient, in 14 other nursing homes will be exposed 4 months in the control condition and 2 months in the experimental condition

The control condition is to propose the usual procedures for the management of productive symptoms during the emergence or increase of these symptoms.

The "chariot-flash" condition is a chariot with eleven drawers. Each drawer contains an activity (lasting about 15 minutes):

• Boards of known photographs to recall autobiographical memories
• Newspapers to read, talk, associate memories around an article
• Massage Oil, refreshing wipes, cream to reconnect with the body
• Clay, cookie pieces, washable felt and paper to create shapes, draw.
• Walk with a person of the healthcare team the case of behavioral disorders in type of ambulation and untimely exit .
• Listening to music
• Relaxation-Breathing
• Cushion, foam balls to vent his energy on secure hardware.
• Plush doll or to invest a vector object of affection and empathy
• Sensory flash balls that the patient can squeeze, throw, roll.
• Games with which the patient can play according to its possibilities.

the number of disorders are evaluated with Cohen Mansfield Agitation Inventory (CMAI) before and 30 minutes after each intervention.

The original version of the CMAI is initially planned to study the frequency of these disorders. However, the goal being to study the decrease in productive symptoms, after using the "chariot-flash", only the number of this item will be considered (between 0 and 29). For example in this modified version, for the item "pace, aimless wandering" nursing team can answer "present" or "absent" instead of (never, less than once a week, once or twice per week, a few times over week, one to two times daily, several times a day, several times per hour)

the score of well-being is assessed using the Instant Well-Being scale (Evaluation Instantané du Bien-Etre : EVIBE) before and 30 minutes after each intervention .

The EVIBE is a visual analogue scale for reporting the status of well-being of the patient at a specific time. On a graduated scale from 0 to 5, the caregiver should position a cursor position to the left corresponding to the feeling of well-being the lowest and the right position to the feeling of well-being the highest.