Table 2.

Rostrocaudal borders and extension of brainstem marker nuclei defined as distance from caudal end of VII (mm).

	P0 Dbx1	P4 Dbx1	P0 vs. P4
XII	(n = 8)	(n = 7)
Caudal border	−0.79 ± 0.11	−0.90 ± 0.16	ns
Rostral border	−0.05 ± 0.11	−0.10 ± 0.16	ns
Extension	0.74 ± 0.10	0.81 ± 0.08	ns
LRN	(n = 8)	(n = 7)
Caudal border	−1.01 ± 0.09	−1.16 ± 0.09	**
Rostral border	−0.60 ± 0.05	−0.65 ± 0.08	ns
Extension	0.41 ± 0.04	0.51 ± 0.06	**
IOM	(n = 8)	(n = 7)
Caudal border	−0.93 ± 0.07	−1.09 ± 0.07	**
Rostral border	−0.28 ± 0.04	−0.34 ± 0.03	**
Extension	0.64 ± 0.07	0.75 ± 0.07	**
IOD + P	(n = 8)	(n = 7)
Caudal border	−0.73 ± 0.05	−0.85 ± 0.06	**
Rostral border	−0.17 ± 0.04	−0.18 ± 0.04	ns
Extension	0.57 ± 0.04	0.68 ± 0.06	**
IOPloop	(n = 8)	(n = 7)
Caudal border	−0.64 ± 0.04	−0.75 ± 0.03	**
Rostral border	−0.30 ± 0.06	−0.32 ± 0.03	ns
Extension	0.34 ± 0.06	0.43 ± 0.03	**
cNA	(n = 4)	(n = 4)
Caudal border	−0.39 ± 0.07	−0.32 ± 0.10	ns
Rostral border	−0.09 ± 0.05	−0.09 ± 0.08	ns
Extension	0.30 ± 0.08	0.23 ± 0.03	ns
VII	(n = 8)	(n = 7)
Caudal border	0	0
Rostral border	0.45 ± 0.06	0.46 ± 0.04	ns
Extension	0.45 ± 0.06	0.46 ± 0.04	ns

A single asterisk *means P < 0.05, double asterisk **means P < 0.01, ns means not significant.