Prisms to Shift Pain Away: Pathophysiological and Therapeutic Exploration of CRPS with Prism Adaptation

Figure 5

Open loop pointing (±SEM) for the adapted hand throughout the prism rehabilitation period. This figure displays preadaptative (circles) and postadaptative (squares) values of open loop pointing movements performed with the adapted hand toward a visual target. The difference between the two curves shows that every session gave rise to the expected compensatory aftereffects. Although the posttest seemed to remain fairly stable over time, indicating that a maximal shift in OLP was obtained from the first session, the gradual shift of the pretest values suggested that some retention of aftereffects was gained and capitalized between each session. Therefore, the apparent size of aftereffects appears to reduce with time, even if the ANOVA interaction between session and the pre-post effect did not reach significance.