Figure 2

Subjective rating (changes) to different conditioning stimuli. The differences between test with conditioning stimuli and corresponding baseline were calculated as delta values: △value = value (conditioned) – value (baseline), which was used in figures (A visual and B auditory test) as “relative changes”. Compared with baseline, subjective stimulus intensity rating during gustatory and multisensory tests was significantly higher. The participants’ subjective rating changes were higher when they were exposed to stronger stimuli in visual and auditory tests. (C) gustatory test, (D) multisensory test. ***= P <0.001.