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Modeling psychological function in patients with schizophrenia with the PANSS: an international multi-center study

Background: The aim of the current study was to explore the changing interrelationships among clinical variables through the stages of schizophrenia in order to assemble a comprehensive and meaningful disease model. Methods: Twenty-nine centers from 25 countries participated and included 2358 patie...

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Published: 2021
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LEADER 00000njm a2000000a 4500
001 oai:repository.ui.edu.ng:123456789/12746
042 |a dc 
720 |a Fountoulakis, K. N.  |e author 
720 |a Dragioti, E.  |e author 
720 |a Theofilidis, A. T.  |e author 
720 |a Wiklund, T.  |e author 
720 |a Atmatzidis, X.  |e author 
720 |a Nimatoudis, I.  |e author 
720 |a Thys, E.  |e author 
720 |a Wampers, M.  |e author 
720 |a Hranov, L.  |e author 
720 |a Hristova, T.  |e author 
720 |a Aptalidis, D.  |e author 
720 |a Milev, R.  |e author 
720 |a Iftene, F.  |e author 
720 |a Spaniel, F.  |e author 
720 |a Knytl, P.  |e author 
720 |a Furstova, P.  |e author 
720 |a From, T.  |e author 
720 |a Karlsson, H.  |e author 
720 |a Walta, M.  |e author 
720 |a Esan, O. B.  |e author 
720 |a Oladele, O.  |e author 
720 |a Osunbote, C.  |e author 
720 |a Rybakowski, J. K.  |e author 
720 |a Wojciak P.  |e author 
260 |c 2021 
520 |a Background: The aim of the current study was to explore the changing interrelationships among clinical variables through the stages of schizophrenia in order to assemble a comprehensive and meaningful disease model. Methods: Twenty-nine centers from 25 countries participated and included 2358 patients aged 37.21 11.87 years with schizophrenia. Multiple linear regression analysis and visual inspection of plots were performed. Results: The results suggest that with progression stages, there are changing correlations among Positive and Negative Syndrome Scale factors at each stage and each factor correlates with all the others in that particular stage, in which this factor is dominant. This internal structure further supports the validity of an already proposed four stages model, with positive symptoms dominating the first stage, excitement/hostility the second, depression the third, and neurocognitive decline the last stage. Conclusions: The current study investigated the mental organization and functioning in patients with schizophrenia in relation to different stages of illness progression. It revealed two distinct “cores” of schizophrenia, the “Positive” and the “Negative,” while neurocognitive decline escalates during the later stages. Future research should focus on the therapeutic implications of such a model. Stopping the progress of the illness could demand to stop the succession of stages. This could be achieved not only by both halting the triggering effect of positive and negative symptoms, but also by stopping the sensitization effect on the neural pathways responsible for the development of hostility, excitement, anxiety, and depression as well as the deleterious effect on neural networks responsible for neurocognition. 
024 8 |a 1092-8529 
024 8 |a 2165-6509 
024 8 |a ui_art_fountoulakis_modelling_2021. 
024 8 |a CNS Spectrums, 26(3), pp. 290-298 
024 8 |a https://repository.ui.edu.ng/handle/123456789/12746 
653 |a Schizophrenia 
653 |a PANSS 
653 |a Psychological Function 
245 0 0 |a Modeling psychological function in patients with schizophrenia with the PANSS: an international multi-center study