A system for computerized drawing and writing during functional magnetic resonance imaging of a user's brain for mapping the user's brain activity during a behavior task of a functional magnetic resonance imaging (fMRI) investigation with the user placed within a bore of a MRI scanner, said MRI scanner being located in an electromagnetically shielded enclosure, said system comprising: a) an fMRI-compatible non-ferromagnetic tablet; b) an fMRI-compatible non-ferromagnetic tablet support (14, 16, 18, 20) mounted on a patient table which is insertable into the bore, said tablet being mounted on said tablet support, said tablet support including adjustment means for accommodating a user's girth, and for ergonomically accessing the tablet by a user's hand; c) an fMRI-compatible non-ferromagnetic stylus means for interacting with the tablet for entering input; d) an fMRI-compatible visual display mechanism for displaying to the user the input; e) microprocessor controller connected to said visual display mechanism and said tablet, said microprocessor controller being located outside said electromagnetically shielded enclosure, said microprocessor controller including processing means for converting responses of the user input into visual stimuli displayed on said visual display mechanism, logging said responses into temporal and 2 dimensional spatial coordinates, interpreting said responses associated with the behavior task under fMRI investigation; characterized in that: said tablet is a touch-sensitive tablet comprising a touch screen capable of translating a touch into electric signals, and said touch screen being attached to shielded and filtered cabling to transmit said electric signals to the microprocessor controller; and said tablet is capable of detecting user input within the bore of the MRI scanner during fMRI. a) an fMRI-compatible non-ferromagnetic tablet; b) an fMRI-compatible non-ferromagnetic tablet support (14, 16, 18, 20) mounted on a patient table which is insertable into the bore, said tablet being mounted on said tablet support, said tablet support including adjustment means for accommodating a user's girth, and for ergonomically accessing the tablet by a user's hand; c) an fMRI-compatible non-ferromagnetic stylus means for interacting with the tablet for entering input; d) an fMRI-compatible visual display mechanism for displaying to the user the input; e) microprocessor controller connected to said visual display mechanism and said tablet, said microprocessor controller being located outside said electromagnetically shielded enclosure, said microprocessor controller including processing means for converting responses of the user input into visual stimuli displayed on said visual display mechanism, logging said responses into temporal and 2 dimensional spatial coordinates, interpreting said responses associated with the behavior task under fMRI investigation; characterized in that: said tablet is a touch-sensitive tablet comprising a touch screen capable of translating a touch into electric signals, and said touch screen being attached to shielded and filtered cabling to transmit said electric signals to the microprocessor controller; and said tablet is capable of detecting user input within the bore of the MRI scanner during fMRI. said tablet is a touch-sensitive tablet comprising a touch screen capable of translating a touch into electric signals, and said touch screen being attached to shielded and filtered cabling to transmit said electric signals to the microprocessor controller; and said tablet is capable of detecting user input within the bore of the MRI scanner during fMRI.