Fig. 3.

Typical whole nerve integrated responses of the glossopharyngeal (GL) nerve (from an adolescent control rat) to lingual stimulation with chemical stimuli. A: components of the integrated response: baseline activity (i); breathing artifacts (ii), transient responses to the infusion of the chemical stimulus or water rinse into the oral cavity(iii); and the actual taste response to the chemical stimulus (iv) (dashed line indicates the time period over which the taste response was quantified). B–F: GL nerve responses to 1 concentration of NH₄Cl (B) and 3 concentrations of NaCl (C), quinine (D), ethanol (E), and sucrose (F).