The study is the first to quantify the prevalence of vocal fry in normal speech, although other researchers have noted the pattern. (sciencemag.org)
This use of the tongue helps to lay down patterns of mouth and tongue muscle use which are helpful in the development of normal speech patterns. (breastfeeding-babies.com)
Being able to perceive and maintain a beat is believed to be critical for normal speech because it serves as a pacing signal. (sciencedaily.com)