Title :
fMRI based BCI control using spatial visual attention at 7T
Author :
Andersson, Patrik ; Viergever, Max A. ; Pluim, Josien P W ; Ramsey, Nick F. ; Siero, Jeroen C W
Author_Institution :
Image Sci. Inst., Univ. Med. Center Utrecht, Utrecht, Netherlands
fDate :
April 29 2009-May 2 2009
Abstract :
In this study we have investigated the potential of using visual attention as a control-method for Brain-Computer-Interfaces (BCI). We show using high-field (7T) fMRI that subjects can control their visuospatial attention and that the BOLD effect is strong enough to base a reliable control-signal on. The strength and location of activation was determined for six subjects. In an additional experiment two of the subjects got real-time feedback based on the activation in the activated regions.
Keywords :
biomedical MRI; brain-computer interfaces; cognition; medical computing; medical control systems; BOLD effect; brain computer interface; fMRI based BCI control; real-time feedback; spatial visual attention; visuospatial attention; Biomedical imaging; Brain computer interfaces; Communication system control; Communications technology; Electrodes; Nervous system; Neural engineering; Neurosurgery; Prosthetics; Signal resolution;
Conference_Titel :
Neural Engineering, 2009. NER '09. 4th International IEEE/EMBS Conference on
Conference_Location :
Antalya
Print_ISBN :
978-1-4244-2072-8
Electronic_ISBN :
978-1-4244-2073-5
DOI :
10.1109/NER.2009.5109328
