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Title: Characterization of the relationship between semantic and structural language features in psychiatric diagnosis
Authors: Mota, Natália
Ribeiro, Sidarta Tollendal Gomes
Copelli, Mauro
Carrillo, Fernando
Slezak, Diego Fernadez
Keywords: Graph;Semantics;Schizophrenia
Issue Date: Apr-2017
Publisher: IEEE
Portuguese Abstract: Psychiatry describes speech symptoms that are indicative of disorganized thought, but measuring them is not easy. With natural language processing tools, it is possible to quantify psychiatric symptoms. Graph representations of word trajectories and semantic incoherence have independently been shown to predict the Schizophrenia diagnosis. Both analyses assess thought organization through speech, but the relationship between them is unknown. To fill this gap, here we characterize the relationship between structural and semantic features of free verbal reports from 60 patients and matched controls. Graph connectedness is inversely correlated to semantic incoherence and both explain 54% of negative symptoms variance
Appears in Collections:ICe - Artigos publicados em periódicos

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