Alison Ng, a post-doctoral fellow in the School of Optometry and Vision Science in the Faculty of Science at Waterloo, who used video recordings to track the migration of eyeliner particles into the eye depending on the makeup application.
And these unconscious vocal adjustments tend to have the desired effect: listeners responded more favourably to recordings of voices with these acoustics.
They spent half an hour listening to the recordings and half an hour listening to music they said made them feel anxious while the researchers did ultrasound tests designed to show blood vessel function.
