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. 2008 Dec 12;106(2):620–630. doi: 10.1152/japplphysiol.91277.2008

Fig. 7.

Fig. 7.

Composite map of brain sections showing locations of microinjection, stimulation, and recording sites in ARC, vlPAG, and rVLM. For simplicity, all recordings or microinjections are placed on one side. Top, left: location of the ARC in the ventral hypothalamus. Right: A: ★, DLH in ARC, n = 30; ▪, KA in ARC, n = 6; □, NS in ARC, n = 13. B: •, antidromic recordings in ARC, n = 6; ○, hypothalamic neurons unresponsive to antidromic stimulation of rVLM, n = 8. Middle: ▪, KA in rvlPAG (n = 5) and in cvlPAG (n = 8); □, NS in vlPAG, n = 16; ◊, recording of neuronal response to stimulation of the splanchnic nerve and somatic acupoints (n = 30); ○, recordings outside vlPAG at A 0.1–3 level (n = 3, another unresponsive neuron located more rostrally, A 7) is not shown in this figure. Bottom: ▴, rVLM neurons responding to EA, n = 12; ▾, rVLM evaluated for time control, n = 8; ★, rVLM neurons inhibited by DLH in ARC, n = 12; ⧫, DLH in ARC, KA in rvlPAG (n = 5) and cvlPAG (n = 4), and recording in rVLM; ⋆, medullary neurons outside rVLM unresponsive to DLH in ARC; n = 5; •, antidromic stimulation in rVLM, n = 6; ○, antidromic stimulation outside rVLM, n = 8. Retrofacial nucleus (RFN), nucleus of the inferior olive (IO), and alaminar spinal trigeminal nucleus (5SP) are indicated.