Childhood Apraxia of Speech (CAS) is a pediatric developmental language disorder that causes children to have difficulties with vowel and consonant production. Feedforward and feedback problems have been advanced as a causal factor for the speech production deficits. According to the Directions in Velocity of Articulators (DIVA) model, two feedback mechanisms exist in speech production: auditory and somatosensory (i.e. sensory information on the position of the articulators) feedback. Research has shown that CAS patients heavily rely on auditory feedback, but somatosensory feedback has been experimentally disregarded. We propose to alternately disrupt both feedback systems described in the DIVA model, and evaluate the deviations the disruptions induce during syllable productions controlled for length, individual complexity and sequence complexity compared to a baseline condition (no disruption) and productions of matched healthy controls. The experimental set-up follows a case-control design. Data will be analyzed via mixed effects models and generalized additive modeling in R. The main objective is to establish in-group and between-group comparisons of the effects of a feedback disruption of the recognized feedback systems in the DIVA model. This will be done by comparing the measurements of the spatial deviations of the articulators as well as changes in vowel durations via electromagnetic articulography (EMA) in CAS patients and the controls when they produce the stimuli.