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. Author manuscript; available in PMC: 2009 Jun 30.
Published in final edited form as: Respir Physiol Neurobiol. 2008 Mar 28;162(1):24–31. doi: 10.1016/j.resp.2008.03.010

Fig. 4.

Fig. 4

Effects of Substance P on respiratory-related neural activity from tadpole brainstem preparations. Responses of pre-metamorphic (A) and post-metamorphic (B) brainstems are shown for the highest concentration of SP used (5 μM) followed by washout with aCSF. Note the increase in lung burst frequency with SP.