Is plasticity in sensory and motor systems linked? Here, in the context of speech motor learning and perception, we test the idea sensory function is modified by motor learning and, in particular, that speech motor learning affects a speaker's auditory map. We assessed speech motor learning by using a robotic device that displaced the jaw and selectively altered somatosensory feedback during sp...



 Based on a review of models and theories in speech communication, this paper proposes an original Bayesian framework able to express each of them in a unified way. This framework allows to selectively incorporate motor processes in perception or auditory representations in production, thus implementing components of a perceptuo-motor link in speech communication processes. This provides a ba...

Childhood apraxia of speech (CAS) is a pediatric motor speech disorder characterized by poor motor planning/programming skills (ASHA, 2007). Treatment of CAS focuses on improving motoric processes for speech production. One important consideration within the therapeutic context is the complexity of speech targets. While many studies have examined complexity across linguistic domains (Gierut, 20...

UNLABELLED This paper investigates the hypothesis that stuttering may result in part from impaired readout of feedforward control of speech, which forces persons who stutter (PWS) to produce speech with a motor strategy that is weighted too much toward auditory feedback control. Over-reliance on feedback control leads to production errors which if they grow large enough, can cause the motor sys...

The motor regions that control movements of the articulators activate during listening to speech and contribute to performance in demanding speech recognition and discrimination tasks. Whether the articulatory motor cortex modulates auditory processing of speech sounds is unknown. Here, we aimed to determine whether the articulatory motor cortex affects the auditory mechanisms underlying discri...

The nervous system receives both auditory and somatosensory information while we talk. Speech production entails sensorimotor control and as such relies on multiple sensory inputs. The role of somatosensory input in speech motor control is little understood. Previous studies seeking to identify a somatosensory basis to speech motor function have done so in the presence of auditory inputs. Hence...

Centralization of vowel formants has been associated with reduced intelligibility in healthy speakers and those with motor speech disorders [1-3]. Hence, estimations of speakers’ vowel space area (VSA) provide a promising avenue for assessing speech motor control. However, VSA measurements have traditionally demonstrated limited success in distinguishing healthy and disordered speech [1, 3]. On...

This study evaluates perceptual changes in speech production accuracy in six children (3-11 years) with moderate-to-severe speech impairment associated with cerebral palsy before, during, and after participation in a motor-speech intervention program (Prompts for Restructuring Oral Muscular Phonetic Targets). An A1BCA2 single subject research design was implemented. Subsequent to the baseline p...