Oguz Kelemen

Summary

Country: Hungary

Publications

  1. ncbi request reprint [The role of ventromedial prefrontal cortex in addiction disorders]
    Oguz Kelemen
    Bács Kiskun Megyei Onkormányzat Kórháza, Pszichiátriai Osztály, Szegedi Tudományegyetem Altalános Orvostudományi Kar Oktatókórháza, Kecskemet
    Ideggyogy Sz 57:4-10. 2004
  2. ncbi request reprint How well do patients with schizophrenia track multiple moving targets?
    Oguz Kelemen
    Bács Kiskun Country Hospital, Kecskemet, Hungary
    Neuropsychology 21:319-25. 2007
  3. ncbi request reprint Reconceive Shamanism related Theory of Schizophrenia
    Oguz Kelemen
    Bács Kiskun County Hospital, Psychiatric Department, Kecskemet, Hungary, E mail
    Psychiatr Hung 29:4-13. 2014
  4. ncbi request reprint [Visual pathways are affected in neurodevelopmental diseases. Review]
    Oguz Kelemen
    Bács Kiskun megyei Kórház, Kecskemet
    Psychiatr Hung 23:177-85. 2008
  5. ncbi request reprint [Schizophrenia and evolutionary psychopathology]
    Oguz Kelemen
    Bács Kiskun megyei Kórház, Pszichiátriai Osztály, Kecskemet, Hungary
    Psychiatr Hung 22:333-43. 2007
  6. ncbi request reprint Perceptual and cognitive effects of antipsychotics in first-episode schizophrenia: the potential impact of GABA concentration in the visual cortex
    Oguz Kelemen
    Bács Kiskun County Hospital, Psychiatry Center, Kecskemet, Hungary
    Prog Neuropsychopharmacol Biol Psychiatry 47:13-9. 2013
  7. ncbi request reprint Visual-perceptual dysfunctions are possible endophenotypes of schizophrenia: evidence from the psychophysical investigation of magnocellular and parvocellular pathways
    Szabolcs Keri
    Department of Psychiatry, University of Szeged, Szeged, and Bács Kiskun County Hospital, Kecskemet, Hungary
    Neuropsychology 19:649-56. 2005
  8. ncbi request reprint [Learned equivalence in schizophrenia: novel method for the measurement of memory functions of the hippocampus and basal ganglia]
    Orsolya Nagy
    Bács Kiskun Megyei Onkormányzat Kórháza, Pszichiátriai Osztály, Kecskemet
    Psychiatr Hung 20:363-9. 2005
  9. doi request reprint Contrast, motion, perceptual integration, and neurocognition in schizophrenia: the role of fragile-X related mechanisms
    Oguz Kelemen
    Bács Kiskun County Hospital, Psychiatry Center, Kecskemet, Hungary
    Prog Neuropsychopharmacol Biol Psychiatry 46:92-7. 2013
  10. ncbi request reprint [Cognitive impairment in patients with alcoholism after long-term abstinence]
    Réka Mlinarics
    BKMOK, Pszichiátriai Osztály, Kecskemet
    Neuropsychopharmacol Hung 11:135-9. 2009

Collaborators

Detail Information

Publications24

  1. ncbi request reprint [The role of ventromedial prefrontal cortex in addiction disorders]
    Oguz Kelemen
    Bács Kiskun Megyei Onkormányzat Kórháza, Pszichiátriai Osztály, Szegedi Tudományegyetem Altalános Orvostudományi Kar Oktatókórháza, Kecskemet
    Ideggyogy Sz 57:4-10. 2004
    ..The aim of this paper is to review these novel findings in order to gain insight into the neurocognitive mechanisms of addictological disorders...
  2. ncbi request reprint How well do patients with schizophrenia track multiple moving targets?
    Oguz Kelemen
    Bács Kiskun Country Hospital, Kecskemet, Hungary
    Neuropsychology 21:319-25. 2007
    ..These results suggest that multiple-object tracking is impaired in schizophrenia, and that it is specifically associated with motion perception and spatial working memory...
  3. ncbi request reprint Reconceive Shamanism related Theory of Schizophrenia
    Oguz Kelemen
    Bács Kiskun County Hospital, Psychiatric Department, Kecskemet, Hungary, E mail
    Psychiatr Hung 29:4-13. 2014
    ..We finally reach the same conclusion as the recent ethnological literature that in connection with shamanism schizophrenia should be avoided. However we consider the possible compromising explanations as well. ..
  4. ncbi request reprint [Visual pathways are affected in neurodevelopmental diseases. Review]
    Oguz Kelemen
    Bács Kiskun megyei Kórház, Kecskemet
    Psychiatr Hung 23:177-85. 2008
    ..Using special tasks, one could investigate even the subcortical, early cortical, and higher-level information-processing...
  5. ncbi request reprint [Schizophrenia and evolutionary psychopathology]
    Oguz Kelemen
    Bács Kiskun megyei Kórház, Pszichiátriai Osztály, Kecskemet, Hungary
    Psychiatr Hung 22:333-43. 2007
    ..At the end of this article we discuss this last theory in detail listing arguments for and against...
  6. ncbi request reprint Perceptual and cognitive effects of antipsychotics in first-episode schizophrenia: the potential impact of GABA concentration in the visual cortex
    Oguz Kelemen
    Bács Kiskun County Hospital, Psychiatry Center, Kecskemet, Hungary
    Prog Neuropsychopharmacol Biol Psychiatry 47:13-9. 2013
    ..The prominent dampening effect on low spatial frequency in the steady-pedestal test might indicate the normalization of putatively overactive magnocellular retino-geniculo-cortical pathways...
  7. ncbi request reprint Visual-perceptual dysfunctions are possible endophenotypes of schizophrenia: evidence from the psychophysical investigation of magnocellular and parvocellular pathways
    Szabolcs Keri
    Department of Psychiatry, University of Szeged, Szeged, and Bács Kiskun County Hospital, Kecskemet, Hungary
    Neuropsychology 19:649-56. 2005
    ..Visual-perceptual and neuropsychological data did not correlate. In conclusion, M pathway dysfunction is a potential endophenotype of schizophrenia...
  8. ncbi request reprint [Learned equivalence in schizophrenia: novel method for the measurement of memory functions of the hippocampus and basal ganglia]
    Orsolya Nagy
    Bács Kiskun Megyei Onkormányzat Kórháza, Pszichiátriai Osztály, Kecskemet
    Psychiatr Hung 20:363-9. 2005
    ..High-dose first generation antipsychotics may disrupt BG-dependent learning by blocking dopaminergic neurotransmission in the nigro-striatal system...
  9. doi request reprint Contrast, motion, perceptual integration, and neurocognition in schizophrenia: the role of fragile-X related mechanisms
    Oguz Kelemen
    Bács Kiskun County Hospital, Psychiatry Center, Kecskemet, Hungary
    Prog Neuropsychopharmacol Biol Psychiatry 46:92-7. 2013
    ..These results suggest that FMRP may be implicated in the pathogenesis of schizophrenia, possibly via the regulation of neurodevelopment, plasticity, GABA-ergic, and glutamatergic neurotransmission. ..
  10. ncbi request reprint [Cognitive impairment in patients with alcoholism after long-term abstinence]
    Réka Mlinarics
    BKMOK, Pszichiátriai Osztály, Kecskemet
    Neuropsychopharmacol Hung 11:135-9. 2009
    ..Some other domains do not show such an improvement, which could be due to a primary deficit or to a slower recovery process...
  11. doi request reprint Impaired generalization of associative learning in patients with alcohol dependence after intermediate-term abstinence
    Adrienne Máttyássy
    Bács Kiskun County Hospital, Psychiatry Center, Izsáki Street 5, Kecskemet, Hungary 6000
    Alcohol Alcohol 47:533-7. 2012
    ..This test is suitable for the assessment of stimulus-response learning and memory generalization (acquired equivalence), which is related to medial temporal lobe functioning...
  12. ncbi request reprint Recognition of complex mental states in patients with alcoholism after long-term abstinence
    Adrienne Mátyássy
    Bács Kiskun County Hospital, Psychiatry Center, Departments of Psychiatry, University of Szeged, Semmelweis u 6, Szeged, H 6725, Hungary
    Alcohol Alcohol 41:512-4. 2006
    ..In this study, we investigated the recognition of complex social emotions and mental states in patients with alcoholism after long-term abstinence and healthy control subjects...
  13. ncbi request reprint Theory of mind and motion perception in schizophrenia
    Oguz Kelemen
    Psychiatry Center, Bács Kiskun County Hospital, Kecskemet, Hungary
    Neuropsychology 19:494-500. 2005
    ..This suggests that ToM deficits are related to motion perception dysfunctions, which indicates a possible role of motion-sensitive areas in the pathophysiology of schizophrenia...
  14. ncbi request reprint Vernier threshold in patients with schizophrenia and in their unaffected siblings
    Szabolcs Keri
    University of Szeged, Szeged, Hungary
    Neuropsychology 18:537-42. 2004
    ..In the isoluminant blue-on-yellow and high contrast achromatic conditions, there were no significant differences between the experimental groups. These results suggest that the deficit of M pathway is an endophenotype of schizophrenia...
  15. ncbi request reprint [An objective method for the assessment of expressed emotions and symptoms during direct family transactions in schizophrenia]
    Szabolcs Keri
    Semmelweis Egyetem, Pszichiatriai es Pszichoterapias Klinika, Budapest
    Neuropsychopharmacol Hung 10:5-8. 2008
    ..Given that EE reactivity is related to cognitive functions, cognitive enhancers may have a positive effect...
  16. ncbi request reprint Dissociation between medial temporal lobe and basal ganglia memory systems in schizophrenia
    Szabolcs Keri
    Department of Psychiatry, University of Szeged, Semmelweis u 6, Szeged, H 6725, Hungary
    Schizophr Res 77:321-8. 2005
    ..High-dose first generation antipsychotics may disrupt BG-dependent learning by blocking dopaminergic neurotransmission in the nigro-stiratal system...
  17. doi request reprint Associative learning in deficit and nondeficit schizophrenia
    Márta Farkas
    Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
    Neuroreport 19:55-8. 2008
    ..These results suggest that the enduring negative symptoms of deficit patients may be related to decreased response to cognitive feedback and deficient basal ganglia functioning...
  18. ncbi request reprint [Learning cognitive skills in depression: the effect of context-change]
    Patrícia Polgár
    Semmelweis Egyetem, Pszichiatriai es Pszichoterapias Klinika, Budapest, Hungary
    Psychiatr Hung 22:271-5. 2007
    ..While cognitive functions have been widely studied, much less is known about implicit learning in depression...
  19. ncbi request reprint How to find the way out from four rooms? The learning of "chaining" associations may shed light on the neuropsychology of the deficit syndrome of schizophrenia
    Patrícia Polgár
    Semmelweis University, Department of Psychiatry and Psychotherapy, Budapest, H1083, Balassa u 6, Hungary
    Schizophr Res 99:200-7. 2008
    ..These results indicate that the deficit syndrome is associated with prominently impaired stimulus-response reinforcement learning, which may indicate abnormal functioning of basal ganglia circuits...
  20. ncbi request reprint Habit learning and the genetics of the dopamine D3 receptor: evidence from patients with schizophrenia and healthy controls
    Szabolcs Keri
    Department of Psychiatry, University of Szeged, Szeged, Hungary
    Behav Neurosci 119:687-93. 2005
    ..Learning rate was normal in patients with schizophrenia. These results suggest that the DRD3 variant containing glycine is associated with more efficient striatal habit learning in healthy controls and patients with schizophrenia...
  21. ncbi request reprint [Therapy of mental states at high risk for psychosis: preliminary results from Hungary]
    Szabolcs Keri
    Szegedi Tudomanyegyetem, Szent Gyorgyi Albert Orvos es Gyogyszeresztudomanyi Kozpont, Általános Orvostudományi Kar, Pszichiatriai Klinika, Szeged
    Orv Hetil 147:201-4. 2006
    ..Recent evidence raised the possibility that low-dose antipsychotic treatment during the prodromal phase may prevent the development of full-blown psychosis...
  22. ncbi request reprint Development of visual motion perception in children of patients with schizophrenia and bipolar disorder: a follow-up study
    Szabolcs Keri
    Department of Psychiatry, University of Szeged, Szeged, Hungary Department of Physiology, University of Szeged, Szeged, Hungary
    Schizophr Res 82:9-14. 2006
    ..These results suggest that the progressive developmental abnormality of motion-sensitive visual areas may be a characteristic feature of schizophrenia-vulnerability...
  23. ncbi request reprint Anomalous visual experiences, negative symptoms, perceptual organization and the magnocellular pathway in schizophrenia: a shared construct?
    Szabolcs Keri
    University of Szeged, Department of Psychiatry, Szeged, Hungary
    Psychol Med 35:1445-55. 2005
    ....
  24. ncbi request reprint Lateral interactions in the visual cortex of patients with schizophrenia and bipolar disorder
    Szabolcs Keri
    Department of Psychiatry, University of Szeged, Szeged, Hungary
    Psychol Med 35:1043-51. 2005
    ..The purpose of this study was to investigate the functional integrity of lateral connections in early visual areas of patients with schizophrenia and type I bipolar disorder with a history of psychosis...