Fig. 1From: Optimized statistical parametric mapping procedure for NIRS data contaminated by motion artifacts a Experimental time sequence, b design matrix \({\mathbf {X}}\) for the GLM: b shows the elements in the design matrix \({\mathbf {X}}\) in black (\({\hbox {value}}=1\)) and white (\({\hbox {value}}=0\)) in the gray image. Refer to Sect. 3.2 for details of the design matrixBack to article page