Manual disfluency in drawing while producing and listening to disfluent speech

► We examined relationships between speech and manual fluency in dual tasks. ► Participants drew circles on a tablet while reading or listening to speech. ► Reading disfluently and listening to disfluent speech increased manual disfluency. ► Reading fluently and listening to fluent speech did not disrupt manual fluency. ► Results support hand-speech and perception-production neural connectivity.