Figure 2. Effect of DLH injection into the rostral ventrolateral medulla (RVLM) on the rise in T_tail elicited by preoptic warming.

A, control (no injection); B, DLH injection. From top to bottom: T_tail, T_PO, T_re, B.P. and H.R. The arrow indicates DLH (0.5 mm, 0.3 μl) injection ipsilateral to the side of preoptic warming. The significance of the dashed and dotted lines in the top record in B is given in the text. The location of the cannula tip is indicated with a filled circle in the inset. IO, inferior olive; LPGi, lateral gigantocellular nucleus; NST, nucleus of solitary tract; ROb, raphé obscurus nucleus; RVL, rostroventrolateral reticular nucleus