Conference Publication Details
Mandatory Fields
Coyle S.;Ward T.;Markham C.
Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Physiological noise in near-infrared spectroscopy: Implications for optical brain computer interfacing
Optional Fields
Brain computer interface Cerebral haemodynamics Near-infrared spectroscopy Physiological noise
Near-infrared spectroscopy is a non-invasive optical method used to detect functional activation of the cerebral cortex. Cognitive, visual, auditory and motor tasks are among the functions that have been investigated by this technique in the context of optical brain computer interfacing. In order to determine whether the optical response is due to a stimulus, it is essential to identify and reduce the effects of physiological noise. This paper characterizes noise typically present in optical responses and reports signal processing approaches used to overcome such noise.
Grant Details