There was a highly significant correlation between the online proprioceptive acuity, as measured by the CCM task, and the difference between post minus pre tool-use on most of the kinematic parameters: acceleration: r = 0.802 , p < 0.001; velocity: r = 0.769, p < 0.00012; deceleration: r = 0.766, p < 0.00013; latency of velocity: r = − 0.707, p < 0.00071; latency of deceleration: r = − 0.665, p < 0.0019; movement time: r = − 0.770, p < 0.00012; latency of maximum grip aperture: r = − 0.742, p < 0.00065 (all p values are Bonferroni corrected).
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Online proprioception feeds plasticity of arm representation following tool-use in healthy aging.
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