title: The Helix: a multi-modal tactile stimulator for human functional neuroimaging.
abstract: In order to expand the repertoire of somatosensory functions that can be effectively studied through functional MRI, we have developed a tactile stimulator which can deliver rich and varied combinations of stimulation that simulate natural tactile exploration. The system is computer controlled and compatible with an MRI environment. Complex aspects of somesthesis can thus be studied independent of confounds introduced by motor activity or problems with precision, accuracy or reproducibility of stimulus delivery.
authors.affiliation: Laboratory of Brain and Cognition, National Institute of Mental Health, NIH, Bethesda, MD 20892-1366, USA. ingeholm@nih.gov
authors.forename: John E
authors.initials: JE
authors.lastname: Ingeholm
authors.forename: George R
authors.initials: GR
authors.lastname: Dold
authors.forename: Lawerence E
authors.initials: LE
authors.lastname: Pfeffer
authors.forename: David
authors.initials: D
authors.lastname: Ide
authors.forename: Seth R
authors.initials: SR
authors.lastname: Goldstein
authors.forename: Kenneth O
authors.initials: KO
authors.lastname: Johnson
authors.forename: Robert W
authors.initials: RW
authors.lastname: Van Boven
mesh_terms: D001931:Brain Mapping; D003205:Computing Methodologies; D006801:Humans; D008279:Magnetic Resonance Imaging; D010100:Oxygen / Q000097:blood; D010812:Physical Stimulation / Q000295:instrumentation / Q000379:methods; D011930:Reaction Time / Q000502:physiology; D013003:Somatosensory Cortex / Q000098:blood supply* / Q000502:physiology*; D014110:Touch / Q000502:physiology*; D014584:User-Computer Interface
chemical_list: D010100:Oxygen