Electromagnetic Articulography

Electromagnetic articulography (EMA) is a state-of-the-art technology that allows researchers to track articulatory movements within the inner reaches of the vocal tract on a millisecond-by-millisecond basis and localize where in the vocal tract the movements occur. The tracking is performed by using a series of weak and diffuse magnetic fields to localize the positions of transducers temporarily attached to the articulators (i.e., the lips, tongue and jaw) during speaking.



Mark Tiede, a Senior Scientist at Haskins Laboratories(New Haven, CT), has developed MVIEW, a Matlab-based software for processing, visualizing and analyzing articulatory kinematic and acoustic data; UF researchers use this software in kinematic studies of speech production in neurotypical talkers and talkers with neurodevelopment disorders that negatively impact speech (e.g., dyslexia, stuttering, autism, cleft palate, and hearing loss).


We are the first EMA laboratory focusing on young children’s speech motor development. There are very few EMA machines in the United States and no other laboratory has developed optimal methods, procedures, and measures for assessing speech production for child talkers. Current projects are focused on the acquisition of speech motor control in children with congenital hearing loss.

child ema