Typical whole nerve integrated responses of the chorda tympani (CT) nerve (from an adolescent control rat) to lingual stimulation with chemical stimuli. A: the salient components of the integrated response: baseline activity, the moments when the chemical stimulus was applied and then removed, and a timescale bar. B–F: CT nerve responses of the same rat to 1 concentration of NH4Cl (B) and 3 concentrations of NaCl (C), quinine (D), ethanol (E), and sucrose (F).