Exploring the impact of attention and sensory processing abilities on vocal motor control in children

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Abstract

Auditory feedback plays a critical role in developing and maintaining fluent speech. Although children are theorized to rely heavily on their auditory feedback, previous experimental studies are inconsistent, suggesting that additional factors may be at play. This study examines the role of individual differences in attention and sensory processing abilities on auditory feedback control of speech in children. To this end, 53 children ages 4-11 completed a frequency altered feedback (FAF) task where the pitch of their auditory feedback was manipulated and responses to the manipulation were measured to provide an index of the child’s reliance on their auditory feedback. To measure attention and sensory processing abilities, children completed the Sustained Attention to Response Task (SART), and their parents completed the Short Sensory Profile (SSP) parent-report, respectively. Overall SSP scores, and scores in auditory, tactile, and sensory seeking domains were found to be associated with larger compensatory responses to FAF, while poorer SART performance was associated with slower vocal responses to down shifts. These results suggest that for children, greater sensory processing differences may promote increased reliance on auditory feedback for speech motor control, while attentional differences may be more important in the temporal processing of FAF.

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