Table 4.
Relationship between the anterior forceps diffusion parameters and robotic measures of proprioception
| FA | MD | RD | AD | Fiber Count | |
|---|---|---|---|---|---|
| Position sense | |||||
| Varxy (cm) | R=−0.004, P=0.978 | R=−0.111, P=0.447 | R=−0.067, P=0.649 | R=−0.160, P=0.273 | R=−0.297, P=0.038 |
| Areaxy | R=0.420, P=0.003 | R=−0.264, P=0.067 | R=−0.348, P=0.014 | R=−0.023, P=0.876 | R=0.417, P=0.003 |
| Shiftxy (cm) | R=−0.228, P=0.116 | R=0.343, P=0.016 | R=0.346, P=0.015 | R=0.230, P=0.111 | R=−0.268, P=0.063 |
| Kinesthesia | |||||
| RL (s) | R=−0.044, P=0.765 | R=0.037, P=0.803 | R=0.054, P=0.714 | R=−0.007, P=0.960 | R=−0.364, P=0.010 |
| RLv (s) | R=0.114, P=0.437 | R=0.008, P=0.957 | R=−0.033, P=0.821 | R=0.082, P=0.574 | R=−0.069, P=0.638 |
| IDE (°) | R=−0.138, P=0.345 | R=−0.104, P=0.478 | R=−0.014, P=0.924 | R=−0.239, P=0.098 | R=−0.208, P=0.151 |
| IDEv (°) | R=−0.066, P=0.650 | R=−0.075, P=0.609 | R=−0.020, P=0.890 | R=−0.154, P=0.291 | R=−0.188, P=0.195 |
| PSR | R=−0.173, P=0.235 | R=−0.036, P=0.807 | R=0.054, P=0.713 | R=−0.193, P=0.184 | R=−0.128, P=0.380 |
| PSRv | R=−0.052, P=0.723 | R=−0.073, P=0.620 | R=−0.012, P=0.935 | R=−0.164, P=0.261 | R=−0.358, P=0.012 |
| PLR | R=−0.122, P=0.404 | R=−0.154, P=0.291 | R=−0.048, P=0.744 | R=−0.304, P=0.034 | R=−0.182, P=0.211 |
| PLRv | R=0.028, P=0.850 | R=−0.241, P=0.096 | R=−0.171, P=0.239 | R=−0.295, P=0.040 | R=−0.221, P=0.126 |
Partial spearman's correlations comparing the relationship between robotic sensory measures (no vision condition) and the diffusion parameters of the anterior forceps. Correlations were corrected for multiple comparisons (new α = 0.005). Abbreviations: variability (Varxy), response latency (RL), response latency variability (RLv), initial direction error (IDE), initial direction error variability (IDEv), peak speed ratio (PSR), peak speed ratio variability (PSRv), path length ratio (PLR), path length ratio variability (PLRv), fractional anisotropy (FA), mean diffusivity (MD), radial diffusivity (RD), axial diffusivity (AD). An asterisks (*) denotes significant correlations.