The present invention relates to a method and a system for improvingsensitivityof a first sensory, reflex and/or motor mechanism of a subject by stimulatingasecond sensory, reflex and/or motor mechanism of the subject. For thatpurpose a noise is applied to the second sensory, reflex and/or motormechanism to improve the sensitivity of the first sensory, reflex and/or motormechanism due to cross-modal SR interactions.