Fig. 4. Cortical responses of representative participants measured with NIRS.
(A&F) Predicted NIRS responses. (B-E) Average of the five HbO, and (G-J) HbR speech-evoked cortical responses measured using NIRS from representative individuals in four cohorts. Significance (p-values) are given at the bottom of each figure. (B&G) A normal-hearing adult, (C&H) a normal-hearing child, (D&I) a deaf child who has used a cochlear implant for 5 months, and (E&J) a deaf child hearing through a cochlear implant on the day of initial activation. Note that the left side (blue tracings) was not significant for this child in either HbO or HbR.