Abstract: The invention relates to a sound device for acting on the motor automatisms of a person including: means for generating pulsed sounds SPi each having a frequency comprised between 200 and 1,500 Hz and a duration comprised between 2 and 20 s, each of the pulsed sounds being separated by a time interval ?T comprised between 2 and 60 s, means for controlling the emission and stopping of the pulsed sounds, means for generating associated sounds SA each having a frequency comprised between 2 and 200 Hz and a duration comprised between 2 and 60 s, means for triggering the emission of an associated sound, and control means adapted in order to interrupt the emission of pulsed sounds SPi and to provide the emission of at least one associated sound SA upon receiving an order for triggering an associated sound.