![]() These problems in language productions go along with disturbances in understanding irony, humour, or metaphors (e.g., Kuperberg, 2010a Perlini et al., 2018 Tavano et al., 2008). At the sentence/text level, narrative and pragmatic problems are found (tangentiality, derailment): persons with schizophrenia (PwS) lose track of their topic, follow chains of loose associations, repeat utterances or ignore rules of turn-taking etc. Also, the learning of new words is impaired ( Tunkel et al., 2014). Problems in lexical retrieval (word finding) are reflected in lower scores in verbal fluency tasks (e.g., Juhasz et al., 2012 Creyaufmüller et al., 2020) and in neologisms (involuntary creations of novel or nonsense words) and semantic paraphasias (selection of the wrong word from the same semantic domain, e.g., “cat” for “dog”). Language use in schizophrenia shows systematic abnormalities at various linguistic levels from the single word to the connected complex utterance, suggesting its role even as a potential biomarker for schizophrenia (e.g., Covington et al., 2005 de Boer et al., 2020a, b Voppel et al., 2021). According to the DSM-5, two symptoms out of the following must be present for at least one month ( Tandon et al., 2013): delusions, hallucinations, and disorganised speech. ![]() They may also support the development and implementation of new protocols, e.g., in speech and language therapy in persons with schizophrenia in order to improve their communication skills despite the presence of auditory-verbal hallucinations.ĭisorganised speech is one of the three most prominent symptoms of schizophrenia. The mimicking/simulation paradigm may in future help to identify and disentangle the various factors contributing to disorganised speech in schizophrenia. Anyway, in both cases (mimicked), auditory hallucination appear to contribute to the emergence of disordered speech. These effects were not correlated, suggesting that hallucinations may even affect different levels of linguistic complexity in different ways. In line with reports about real schizophrenia cases in the literature, mimicking auditory-verbal hallucinations affected verbal fluency (switch condition) and sentence production (duration) in a different way than mere noise. This study investigates potential effects in the opposite direction: could the presence of auditory-verbal hallucinations have an effect on speech production? To this end, a recent mimicking/simulation approach was adopted for 40 healthy participants who perceived either white noise or hallucination-like speech recordings during different language production tasks with increasing demands: picture naming, verbal fluency with and without category switch, sentence production, and discourse. Deficits in the internal speech monitor may contribute to the development of auditory-verbal hallucinations. ![]() Schizophrenia is characterised foremost by hallucinations, delusions and disorganised speech.
0 Comments
Leave a Reply. |