Coding (psycholing.) ; Speech shadowing; Repetition (psycholing.) ; Elderspeak; Gerontolekt; Seniorensprache; Old age (language behavior) ; Deviation (pathol.) ; Error analysis (pathol.) ; Parkinson's disease ; Pathologische Sprachproduktion; Pathological language production; Speech production (pathol.) ; Complexity (synt.) ; Bilderanalyse; Picture (description of) ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English