pFL activity	preBӧtC activity	Hypercapnia	Hypoxia	Abdominal activity
No	Yes	No	No	Absent
Yes (driven by CO2)	Low	Moderate	Moderate	Phasic
Yes (driven by CO2)	Absent	Moderate	Moderate	Tonic
No (inhibited by hypoxia)	Absent	High	High	Absent
No	Absent	No	No	Absent
Yes (driven by HM3DR)	Yes	No	No	Phasic
Yes (driven by HM3DR and CO2)	Low	Moderate	Moderate	Phasic
Yes (driven by HM3DR and CO2)	Absent	Moderate	Moderate	Tonic
Yes (driven by HM3DR, but inhibited by hypoxia)	Absent	High	High	Absent
Yes (driven by HM3DR)	Absent	No	No	Absent