My research focuses on the motor processes that
underlie normal and disordered speech production. Currently, I am pursuing two general lines of
work. One line involves developing a
better understanding of how healthy speakers coordinate and scale respiratory,
phonatory and articulatory motor activity to produce fluent, intelligible
speech. For example, some recent work
has focused on the articulatory adjustments speakers make as they vary factors
such as speaking rate, loudness and phonetic structure. A second line of work studies speech motor
processes in adults who stutter. Recent
studies have focused on investigating coordination strategies of stutterers and
non-stutterers, evaluating speech motor changes following stuttering treatment,
and developing typologies of stutterers based on speech motor behavior.
The Department has a number of large speech
databases that can serve to address a variety of research questions. Also, we have a well-developed speech
physiology laboratory that is equipped for recording speech acoustics, chest
wall, vocal fold and oral articulatory motion, orofacial muscle activity and
speech-related aerodynamic events.
Therefore there are a variety of opportunities for those interested in
exploring the acoustic and physiological bases of speech production.