title: Vibrotactile sensory substitution for object manipulation: amplitude versus pulse train frequency modulation.
abstract: Incorporating sensory feedback with prosthetic devices is now possible, but the optimal methods of providing such feedback are still unknown. The relative utility of amplitude and pulse train frequency modulated stimulation paradigms for providing vibrotactile feedback for object manipulation was assessed in 10 participants. The two approaches were studied during virtual object manipulation using a robotic interface as a function of presentation order and a simultaneous cognitive load. Despite the potential pragmatic benefits associated with pulse train frequency modulated vibrotactile stimulation, comparison of the approach with amplitude modulation indicates that amplitude modulation vibrotactile stimulation provides superior feedback for object manipulation.
authors: Boston University, Boston, MA 02215, USA. cstepp@bu.edu
authors: Cara E
authors: CE
authors: Stepp
authors: Yoky
authors: Y
authors: Matsuoka
mesh_terms: D003071:Cognition / Q000502:physiology; D004558:Electric Stimulation; D056228:Feedback, Sensory / Q000502:physiology; D005260:Female; D006225:Hand / Q000502:physiology; D006801:Humans; D008297:Male; D009048:Motor Skills / Q000502:physiology*; D010812:Physical Stimulation; D019736:Prostheses and Implants; D011474:Prosthesis Design; D011597:Psychomotor Performance / Q000502:physiology; D012371:Robotics; D012682:Sensory Aids; D014110:Touch / Q000502:physiology*; D014584:User-Computer Interface; D014732:Vibration; D055815:Young Adult