App: Apraxia Picture Sound Cards APSC Pro. Created for childhood apraxia of speech (CAS) and severe phonological disorders. Pediatric Speech-Language Pathologist and apraxia specialist Lynn Carahaly, M.A., CCC-SLP, developed the Apraxia Picture Sound Cards app. Children with Down syndrome, autism, cerebral palsy, etc., that may also have a motor speech disorders can benefit from this app as well. Pinned by The Sensory Spectrum, wp.me/280vn.