Facial expression ; Speech perception, bimodal; Speech production, bimodal; Simultaneous communication; Multimodale Kommunikation; Audio-visual speech; Bimodal speech perception/production ; Intonation (sentence) ; Satzakzent; Sentence intonation ; Intonation (word) ; Wortbetonung; Oxytonon; Paroxytonon; Proparoxytonon; Wortakzent; Word intonation ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English