Table 1.

Phrenic short-term hypoxic response in burst amplitude and frequency in rats intrathecally injected with aCSF or 25 nm okadaic acid (25 nm OK)

Treatment	n	Δ Burst amplitude (% baseline)	Δ Burst frequency from baseline (bursts/min)
TC (aCSF)	12	−1 ± 5	−3 ± 2
TC (25 nm OK)	8	2 ± 4	0 ± 2
IH (aCSF)	13	108 ± 15^*^†	11 ± 3^*^†
IH (25 nm OK)	7	81 ± 13^*^†	14 ± 3^*^†
SH (aCSF)	11	90 ± 13^*^†	9 ± 2^*^{^†^§}
SH (25 nm OK)	10	126 ± 32^*^†	15 ± 3^*^†
SH (25 nm OK, methysergide)	6	65 ± 10^*^{^†^§}	9 ± 3^*^{^†^§}