medical devices for the treatment of tinnitus, schizophrenia, depression and repetitive stress injuries, consisting of a computer, keyboard, computer mouse, joystick, speakers, headphones, soundcard, platform or grid consisting of fixed or movable pegs, buttons, pressure sensors, letters or designs that create and measure the user's response to sensory stimuli and electronically transmit the user's response to a computer, a cylinder containing a peg that raises up and down and records the user's ability to maintain contact with the peg and electronically transmits the user's response to a computer, computer software for creating sensory stimuli and recording and analyzing the user's response to sensory stimuli