Title :
Is Information Transfer Rate a Suitable Performance Measure for Self-paced Brain Interface Systems?
Author :
Fatourechi, Mehrdad ; Mason, Steven G. ; Birch, Gary E. ; Ward, Rabab K.
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC
Abstract :
Information transfer rate (ITR) is used as the primary metric in the evaluation of many synchronized brain interface (BI) systems. In this paper, the ITR of self-paced BI systems is formulated. It is shown that ITR by itself is NOT a suitable performance measure for self-paced evaluation. Only when there are additional conditions, ITR can be used as a suitable performance measure. Since ITR is achieved through the analysis of the outputs of BI systems, under specific conditions it can be used for comparison between different self-paced BI systems which use similar protocols
Keywords :
brain; medical computing; neurophysiology; user interfaces; information transfer rate; self-paced brain interface systems; synchronized brain interface; Bismuth; Brain computer interfaces; Communication system control; Computer interfaces; Control systems; Frequency synchronization; Information technology; Signal processing; Switches; Transducers; Brain Computer Interface; Information Transfer Rate; Self-paced Brain Interface;
Conference_Titel :
Signal Processing and Information Technology, 2006 IEEE International Symposium on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-9753-3
Electronic_ISBN :
0-7803-9754-1
DOI :
10.1109/ISSPIT.2006.270799
