Although the difference in perceived hand hardness between the MHI and the controls just failed to reach significance, it is important to note that hardness rating significantly increased after the stimulation in the MHI, but not in the controls.
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The sentences
Post-hoc comparisons using the Newman-Keuls test revealed a significant difference between the first and the second GSR measure in the MHI group (p<0.01) but not in the control group (all other comparisons did not reach statistical significance, ps>0.21).