Figure 5
Psychophysical effect of large-field t-LFS on tactile discrimination thresholds of the right d2. Average data from all subjects of group 2 (n = 13). Dots represent mean thresholds, boxes show standard errors, and whiskers correspond to the standard deviation. Time of t-LFS application (20 minutes) on the right d2 is indicated by an arrow. Shown are the results from 4 consecutive sessions before LFS was applied. After session s4 (s4 = pre condition), t-LFS was applied. After t-LFS, discrimination thresholds were significantly increased, indicating impaired tactile performance. 24 hours after termination of t-LFS, discrimination thresholds recovered to baseline conditions. Reassessment of thresholds 1 week later revealed stable performance.