Table 3. Cling Time for each individual included in this study and the respective correction factor.
| Treatment | Cling Time Session 1 | Correction Factor | Cling Time Session 2 | Correction Factor |
|---|---|---|---|---|
| Control | 31.28 | 0.9591 | 31.44 | 0.9542 |
| Control | 32.32 | 0.9282 | 15.40 | 1.9481 |
| Control | 32.08 | 0.9352 | 31.24 | 0.9603 |
| Control | 31.80 | 0.9434 | 31.80 | 0.9434 |
| Mean ± SD 31.87 ± 0.45 | Mean ± SD 27.47 ± 8.05 | |||
| MPTP | 32.04 | 0.9363 | 31.40 | 0.9554 |
| MPTP | 32.64 | 0.9191 | 30.56 | 0.9817 |
| MPTP | 31.16 | 0.9628 | 16.20 | 1.8519 |
| MPTP | 33.00 | 0.9091 | 31.20 | 0.9615 |
| Mean ± SD 32.21 ± 0.80 | Mean ± SD 27.34 ± 7.44 |
The Cling Time was recorded as – the longest period of clinging to the underside of the inverted grid out of 3 consecutive trials in Session 1 performed 10 days after saline (Control) or MPTP treatment and in Session 2 performed 20 days post-treatment. Note that the time it took to stop the video recording and remove the mouse exceeded 30 seconds. We normalized this value for all mice to introduce greater homogeneity into the data set and to avoid inaccuracies in the frame cut-off during TracMouse analysis. The data provide compelling evidence that 30 seconds is readily sustainable for both control and MPTP mice and that Cling Time is not a differential proxy for these cohorts. (It may become a differential for Parkinsonian models if extended for longer periods). *Not included 2 MPTP mice, because of very short Cling Time in Session 1 (see text). Correction Factor is equal 30 s/Cling Time.