Fig. 6.

Brain responses in mean percent BOLD signal change in regions of interest (ROI) for voice productions during the No Stress and Stress conditions. The ROIs represent regions involved in voice and speech production and stress responses with consideration of lateralization. L/R = left/right, S1 = postcentral gyrus, 4p = posterior part of area 4, 6 = area 6, SMA = supplementary motor area, MFG = middle frontal gyrus, ACC = anterior cingulate cortex, MCC = middle cingulate cortex, Ins = insula, Put = putamen, Thal = thalamus, Amy = amygdala, HC = hippocampus, PAG = periaqueductal gray, and Cbl (VI) = Lobule VI of the cerebellum