“…In the last seven to eight years, numerous researchers from Japan (Suto et al, 2004;Tanida et al, 2007;Tsujii and Watanabe, 2009;Tsunashima and Yanagisawa, 2009) and Europe (Boecker et al, 2007;Jourdan Moser et al, 2009;Obrig and Steinbrink, 2011;Plichta et al, 2007b;Schecklmann et al, 2008Schecklmann et al, , 2010Schroeter et al, 2004), have conducted a large amount of research to explore fNIRS as a feasible device to detect neurocognitive functions in response to higher-level processing of the brain. In addition, many researchers have focused their efforts on technical developments in both instruments (Joseph et al, 2006;Schmitz et al, 2000;Zeff et al, 2007) and image reconstruction algorithms Huppert, 2009, 2010;Barbour et al, 2001;Boas et al, 2004;Culver et al, 2003;Dehghani et al, 2009;Niu et al, 2010;Pogue et al, 1999) to establish diffuse optical tomography (DOT) with better spatial resolution.…”