glottis superglottal pressure decrease pressure glottis subglottal pressure subglottal pressure maintained respiratory muscles supraglottal pressure constrictions articulations equal atmospheric pressure however articulations especially consonants represent constrictions airflow pressure cavity behind constrictions increase resulting higher supraglottal pressure lexical access according lexical access model two different stages cognition employed thus concept known two stage theory lexical access first stage lexical selection provides information lexical items required
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