A system for improving sensitivity of a first sensory, reflex and/or motor mechanism of a subject, comprising: a plurality of stimulation signal sources simultaneously providing stimulation signals; and a plurality of stimulators, each stimulator being responsive to a corresponding stimulation signal from a corresponding stimulation signal source and producing, in response to the corresponding stimulation signal, a noise or deterministic excitation signal applied to a second sensory, reflex and/or motor mechanism of the subject, at least one of the plurality of stimulation signal sources being configurable as to adjust a level of the noise or deterministic excitation signal applied to the second sensory, reflex and/or motor mechanism to a level customized to the needs of the subject; wherein the level of the noise or deterministic excitation signal is adjustable so that application of the noise or deterministic excitation signal to the second sensory, reflex and/or motor mechanism causes cross-modal stochastic resonance interactions in the subject to improve the sensitivity of the first sensory, reflex and/or motor mechanism of the subject; and wherein the plurality of stimulators is configured to apply a type of stimulation selected from a group consisting of: a differential stimulation by stimulating two different areas of the subject's body using two of said stimulators in order to stimulate a region of the subject's body between said two different areas, a distributed stimulation by stimulating several areas of the subject's body in order to stimulate a region of the subject's body covered by said several areas, and a plurality of different stimuli to the patient's body. a plurality of stimulation signal sources simultaneously providing stimulation signals; and a plurality of stimulators, each stimulator being responsive to a corresponding stimulation signal from a corresponding stimulation signal source and producing, in response to the corresponding stimulation signal, a noise or deterministic excitation signal applied to a second sensory, reflex and/or motor mechanism of the subject, at least one of the plurality of stimulation signal sources being configurable as to adjust a level of the noise or deterministic excitation signal applied to the second sensory, reflex and/or motor mechanism to a level customized to the needs of the subject; wherein the level of the noise or deterministic excitation signal is adjustable so that application of the noise or deterministic excitation signal to the second sensory, reflex and/or motor mechanism causes cross-modal stochastic resonance interactions in the subject to improve the sensitivity of the first sensory, reflex and/or motor mechanism of the subject; and wherein the plurality of stimulators is configured to apply a type of stimulation selected from a group consisting of: a differential stimulation by stimulating two different areas of the subject's body using two of said stimulators in order to stimulate a region of the subject's body between said two different areas, a distributed stimulation by stimulating several areas of the subject's body in order to stimulate a region of the subject's body covered by said several areas, and a plurality of different stimuli to the patient's body. a differential stimulation by stimulating two different areas of the subject's body using two of said stimulators in order to stimulate a region of the subject's body between said two different areas, a distributed stimulation by stimulating several areas of the subject's body in order to stimulate a region of the subject's body covered by said several areas, and a plurality of different stimuli to the patient's body.