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. 2012 Jan 23;7(1):e30420. doi: 10.1371/journal.pone.0030420

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Kalisch et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Second order partial correlations controlling for the age of all subjects were calculated. There was no significant correlation between tactile and haptic performance of the subjects (A; N = 74, r = 0.133, p = 0.126), but there was a correlation between haptic and cognitive performance (B; N = 74, r = −0.348, p = 0.001) and between tactile acuity and cognitive performance (C; N = 76, r = −0.198, p = 0.041).