Table 1. Estimated fixed and random effects (Equations 2-5) of ratio and session on standardized changes of nonsensorimotor DLS neuron firing rates according to the hierarchical linear model.
Nonsomatomotor DLS neurons exhibited no significant differences in movement- versus cue- ratio, change over sessions, or interaction of firing ratio with training sessions.
| Fixed Effects | |||
|---|---|---|---|
| Parameter | Parameter Estimate with SEM | |t|a | |
| Grand Mean of Movement Ratio | β 00 | 0.459 ± 0.021 | 21.633*** |
| Ratio | β 10 | 0.027 ± 0.024 | 1.104 |
| Session | β 20 | 0.001 ± 0.005 | 0.185 |
| Ratio × Session | β 30 | -0.002 ± 0.006 | 0.261 |
| Random Effects | |||
| Parameter | Variance Estimate | χ2 b | |
| Grand Mean of Movement Ratio (β 00) | r0i | 0.002 | 17.862 |
| Ratio Slope (β 10) | r1i | 0.000 | 10.273 |
| Session Slope (β 20) | r2i | 0.000 | 5.057 |
| Ratio × Session Slope (β 30) | r3i | 0.000 | 10.508 |
Note: The chi-square statistics reported are based on 13 of 14 neuronal units that had sufficient data for computation. All reported values in the table have been rounded.
a
Approximate df = 13.
b
df = 13.
***
P < 0.001;
**
P < 0.01;
*
P < 0.05.