Table 6.
Comparison with motor cortex and the PMRF
| Cell classification | Pallidum (contralateral) | Motor cortex (contralateral) | PMRF (ipsilateral) |
|---|---|---|---|
| Change in transport phase | 40/91 (44%) | 94/112 (84%) | 83/113 (74%) |
| Dynamic increase | 12/40 (30%) | 42/94* (45%) | 11/83 (13%) |
| Dynamic decrease | 12/40 (30%) | 27/94* (29%) | 5/83 (6%) |
| Tonic | 16/40 (40%) | 27/94 (29%) | 67/83 (81%) |
| Change in lever press | 53/91 (58%) | 54/112 (48%) | 78/113 (69%) |
| Dynamic Increase | 34/53 (64%) | 21/54 (39%) | 18/78 (23%) |
| Dynamic Decrease | 9/53 (17%) | 13/54 (24%) | 2/78 (3%) |
| Tonic Increase | 4/53 (8%) | 14/54 (26%) | 45/78 (58%) |
| Tonic Decrease | 6/53 (11%) | 6/54 (11%) | 11/78 (14%) |
| Go-related cells | 18 (20%) | 56/112 (50%) | 59/113 (52%) |
| Cue period | 8 (9%) | 13/112 (12%) | 25/113 (22%) |
| Bimodal | 15/91 (16%) | 27/112 (24%) | 43/113 (38%) |
| Entire movement | 9/91 (10%) | 13/112 (12%) | 50/113 (44%) |
Numbers and percentages of cells showing task-related activity during the reaching task used in this article. The denominator for each of the major classes of cells represented indicates the number of task-related neurons recorded in each structure. For the motor cortex, data were taken from Yakovenko et al. (2011) for the transport and lever press phases and from Yakovenko and Drew (2009) for the Go-related and cue-related cells. Note that the same overall database was used in both studies. For the PMRF, data were taken from Schepens et al. (2008).
*Indicates that two cells showed both a dynamic increase and decrease during the transport phase. The values in bold indicate the overall values for each class of cell.