Fig. 1.
Experimental settings. (A) A child with an NIRS probe. (B) The NIRS probe was attached to the inferior prefrontal area. Each channel consisted of 1 emitter optode and 1 detector optode. The ROI was located near F7/8, which corresponds to ch 15, 17, and 18 and to ch 6, 7, and 9, respectively. (C) An example of preswitch and postswitch phases.