Facial Vibrotactile Stimulation Activates the Parasympathetic Nervous System: Study of Salivary Secretion, Heart Rate, Pupillary Reflex, and Functional Near-Infrared Spectroscopy Activity
Figure 4
Effects of the pupillary reflex following the right-side light stimulation among the resting state (RS), 89 Hz-S on the face (89 Hz-face), and listing to Mozart (Mozart). (a) Typical example of data from the pupillary reflex. Note that the right pupillary reflex data after the light stimulation in right pupil evoked left pupillary reflex data after light stimulation in the left pupil. Red and blue waves showed the typical pupillary reflex after the RS and 89 Hz-face, respectively. (b) Changes in pupillary diameter in the right and left pupils after the RS, 89 Hz-face, and Mozart. We converted all values to the percentage of RS values (one hundred).
