Figure 3
From: The relation between human hair follicle density and touch perception
Two-point discrimination (study 2) and overall touch pleasantness (combined sample). Women present a lower two-point discrimination threshold then men. Touch pleasantness ratings were higher for women than men in the pooled data set (study 1 and 2). In the representation of overall touch pleasantness, the density is plotted on the x-axis. The black line represents the statistical mean value, the red and blue lines, respectively, represent 95% confidence intervals. The numbers and color codes on the bar representing the female values describe the distance of the two indenting stimuli in the course of the assessment.
