Amount of pressure applied during experiments.

A) An example of raw pressure data acquired during a trial. In this trial, the peak pressure for the day was observed during the 8th object presentation around 3 minutes and, thus, normalized to 100%. Colored regions demonstrate how peaks were categorized as “low” (green), “medium” (yellow), or “high” (red) pressure. B) Pie charts: The percentage of normalized applied pressures when binned as low (75%). Bar plots: The average normalized pressure applied over all trials. Both subjects were more likely to apply lower pressure and equally less likely to apply higher pressure when feedback was provided. There was little change in the likelihood of applying moderate pressure. This suggests an overall shift toward application of lower pressure when handling the object.