Table 1.
Responses of single neurons to central chemoreceptor stimulation
| Location and Numbers of Neurons |
||
|---|---|---|
| Response to Central Chemoreceptor Stimulation | RTN-pF | Böt-VRG |
| ↑ | 25 | 101 |
| ↑↓ | 10 | 5 |
| ↓ | 52 | 42 |
| ↓↑ | 3 | 6 |
| → | 54 | 78 |
| Totals | 144 | 232 |
RTN-pF, retrotrapezoid nucleus/parafacial-area. Böt-VRG, Bötzinger and pre-Bötzinger complexes along with the rostral and caudal ventral respiratory groups. ↑, Increased neuronal firing rate; ↓, decreased firing rate; →, no significant change in firing rate to presented stimulus. For both RTN-pF and Böt-VRG, 376 neurons tested for response in seven animals.