Fig. 11.

Left: Mean (±SEM) threshold values obtained from 8 subjects for NaCl presented to the four anterior tongue regions for two stimulation areas (12.5 and 50 mm²). The number of papillae counted under videomicroscopy is indicated by the dark bars, and threshold values by the gray bars. Note that the threshold scale is inverted, such that greater sensitivity is depicted at the top of the scale. Right: Tongue regions where stimulators were centered. From Doty et al.¹²⁹ Copyright © 2001 Elsevier Science Inc.