Fig. 8

The changes in Body Sensations Questionnaire scores (BSQ; change in somatic arousal) versus the changes in Insomnia Severity Index scores (ISI) for our three patients over the course of their treatment and follow-up. To determine each data point, a pair of simultaneously obtained BSQ and ISI scores was subtracted from the immediately preceding pair of simultaneously obtained BSQ and ISI scores. The 16 values plotted are evident in Figs. 1, 4, and 7, with patients 1 and 3 each supplying 3 data points and patient 2 supplying 10 data points. The figure demonstrates a statistically significant positive correlation between the changes in somatic arousal level experienced by our patients and the changes in severity of their chronic insomnia