Phylogenese; Language origin ; Schriftlichkeit; Literacy; Literalität; Oralität; Orality/Literacy ; Psychotherapy ; Psychoanalyse; Language and psychoanalysis ; Kindersprache (pathol.) ; Child language (pathol.) ; Specific language impairment; SLI; Dysgrammatismus (Kindersprache) ; Dysgrammatism (child language) ; Handicapped language acquisition ; Sozioemotionale Entwicklung; Socioemotional development; Language acquisition and psychological development