Abstract
Persistent Speech Disorder (PSD) is present when a speech impairment extends beyond 8–9 years of age. Persistent Speech Disorder can extend into adolescence and adulthood. While PSD can include individuals with residual speech errors, such as distortions of /r/, /s/, and /z/, clinicians are particularly concerned in cases where PSD affects speech intelligibility. This paper is presented in two parts. Part 1 reviews the limited literature available on speech, language, literacy, educational, vocational, and socio-emotional outcomes in people with PSD of currently unknown origin. Part 2 presents a case study of a 22-year-old man, known as BJ, who has Nonverbal IQ in the normal range and severe PSD, specifically Childhood Apraxia of Speech. Longitudinal data on BJ from 3;3 years to 22 years is presented, alongside BJ's insights into PSD written via e-mail or using his electronic communication device. These two sources of information add to the limited body of information about the course of PSD and the experience of PSD in an individual through to adulthood.
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