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Möller, H-J.: From Kraepelin to DSM-V: The concept of schizophrenia. Nemzetközi Szkizofrénia Szimpózium kivonata. Budapest, 2006. Murray, R. M., Dutta, R.: The right answer for the wrong reasons

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Tandon, R., Nasrallah, H. A., Keshavan, M. S.: Schizophrenia, “just the facts” 5. Treatment and prevention. Past, present, and future. Schizophr. Res., 2010, 122 , 1

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, schizophrenia and other psychotic disorders have received less research attention in relation to gambling behaviours and disorder. Yet, published data suggest that up to one in five individuals with schizophrenia may experience problems related to gambling

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Orvosi Hetilap
Authors: Gabriella Inczédy-Farkas, Judit Benkovits, Nóra Balogh, Péter Álmos, Beáta Scholtz, Gábor Zahuczky, Zsolt Török, Krisztián Nagy, János Réthelyi, Zoltán Makkos, Ákos Kassai-Farkas, Anikó Égerházy, Judit Tűzkő, Zoltán Janka, István Bitter, György Németh, László Nagy, and Mária Judit Molnár

Seshadri, S., Kamiya, A., Yokota, Y. és mtsai: Disrupted-in-Schizophrenia-1 expression is regulated by beta-site amyloid precursor protein cleaving enzyme-1-neuregulin cascade. Proc. Natl. Acad. Sci. USA, 2010, 107 , 5622

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Van Os, J., Kapur, S.: Schizophrenia. Lancet, 2009, 374 , 635–645. Kapur S. Schizophrenia Lancet 2009

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Journal of Behavioral Addictions
Authors: Kun-Chia Chang, Yun-Husan Chang, Cheng-Fang Yen, Jung-Sheng Chen, Po-Jen Chen, Chung-Ying Lin, Mark D. Griffiths, Marc N. Potenza, and Amir H. Pakpour

populations, including individuals with schizophrenia, often use the internet to engage in various activities for different purposes and reasons. With the use of smartphones, individuals can surf the internet and use applications (‘apps’) almost anytime and

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Abstract

Perceptual organization (PO) impairments have been repeatedly demonstrated in schizophrenia. The extent to which these impairments can be reduced or eliminated, however, has received less attention, and evidence on this issue has not been previously reviewed. The literature suggests that whether normal experience-dependent change in perceptual organization occurs in schizophrenia depends on factors such as: stimulus grouping strength, extent of practice, type of cues upon which top-down feedback can be generated, and patient characteristics (trait and state). Therefore, the purpose of this paper is to review and synthesize the available evidence on plasticity and other forms of change in PO in schizophrenia, and to relate it to current data and theories on plasticity, including perceptual learning (PL) in healthy people. This can clarify the computational and neural mechanisms involved in experience-dependent and state-related aspects of PO in schizophrenia, and also contribute to a greater understanding of the mechanisms involved in normal PL. A major finding that emerges from a review of the data is that the conditions under which PL of PO does not occur in schizophrenia closely parallel the conditions under which PO is reduced in a single test administration. That is, when stimulus-driven cues to grouping are strong, PL of PO occurs in patients; in contrast, when top-down feedback is required to organize novel or weakly grouped stimuli, PL of PO tends not to occur in patients. Moreover, even with strongly grouping stimuli, change tends to occur only via repetition; when processing of more abstract cues is required to generate top-down feedback, change tends not to occur. In addition, within-session PL in people with schizophrenia appears to be more impaired than learning over multiple days, supporting the separability of fast and slow plasticity mechanisms; however, more research with a larger class of stimuli is needed on this issue.

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A tanulmány 10 év saját kutatásai alapján tekinti át, hogy milyen elemi kognitív működésekben jelenik meg a schizophrenia. A vizuális rendszerben a magnocelluláris (M) M-pálya kifejezett zavara mutatható ki, ami összefügg a Gestalt-szerveződés zavar_

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A szkizofrénia klasszikus idegfejlődési elmélete a genetikai sérülékenységre, a korai környezeti hatásokra (például szülészeti komplikációk) és a pszichoszociális stressz ezekkel mutatott kölcsönhatására helyezi a hangsúlyt. Az elmúlt időszakban – az idegtudományok és a genetika fejlődése mellett – a pszichoszociális tényezők szerepe egyre hangsúlyosabbá vált, olyannyira, hogy egyes szerzők az idegfejlődési elméletet kiegészítették a szociális fejlődés modelljével. A közleményben a szerző a szkizofrénia, a gyermek- és serdülőkori pszichotrauma és a bevándorlás kapcsolatát tekinti át. Az újabb epidemiológiai kulcsadatok mellett felvázolja a pszichotikus tüneteket magyarázó kötődéselméleti és neurokognitív modelleket, valamint az idegfejlődési elmélet módosított változatát.

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Introduction Individuals who suffer from schizophrenia, a severe and chronic mental disorder, are often devalued and face discrimination from others because they have misunderstandings about the disorder ( Dickerson, Sommerville, Origoni, Ringel

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