Figure 3: Typical samples of EMG recordings from the suprahyoid muscle of evoked swallows during electrical stimulation to the oropharynx alone (A: Control), electrical stimulation with distilled water (B: DW), electrical stimulation with 0.15 M NaCl and (C: Saline) and electrical stimulation with 0.1 M monosodium L-glutamate (MSG: umami taste) dissolved with 0.15 M NaCl (D: Saline+MSG). Each of the recordings, upper trace illustrates electrical stimulation pulses (stimulation) and lower illustrates swallow-related EMG activities of the suprahyoid muscle (Sup EMG). The down-pointing triangle and vertical dotted line indicate the onset electrical stimulation. The vertical dashed line in each of the recordings indicates the onset of the swallow reflex and thereby the double-headed arrow indicates the latency in each of stimulus conditions.