Cognitive Playground is an experience. Composed of wood structures on which the spectator can lie down, set his chin, sit down, let himself be impregnated with low frequency sound impulses or or light impulses. A chime rings every 3 minutes. Colorful and sonic impulses in the installation are real-time translation of mindfulness texts read by a computer. How minds are shaped by diverted, unconscious ways? From the youngest age. Could the chime be experienced as a new Pavlov experience throught repetition of the same mental state associated to the bell?