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Yıl:2012; Cilt: 5; Sayı: 3>> Özet
Türkiye Klinikleri Psikiyatri Özel Dergisi; 2012;5(3):43-48
Obsesif Kompulsif Bozuklukta Bilişsel İşlevler
R Tükel
İstanbul Üniversitesi İstanbul Tıp Fakültesi, İstanbul
Obsesif kompulsif bozukluğun (OKB) nöropsikolojisini araştıran çalışmalar, bu hastalığın nörobiyolojik temellerini açıklama yönünde önemli katkılar sunmaktadır. Nöropsikolojik işlev çalışmaları, OKB hastalarında yürütücü işlevler, görsel-mekansal yetenekler ve motor hız başta olmak üzere çeşitli bilişsel alanlarda eksikliklerin olduğunu ortaya koymaktadır. OKB hastalarının, ayrıca, yetersiz zihinsel esneklik ve zayıf planlama yetenekleri olmasıyla açıklanabilecek, etkili öğrenme stratejilerini kullanma yönünde zorlukları olduğu bulunmuştur. OKB hastalarının yürütücü işlev ölçümlerinde ve yürütücü işlev bozukluğuna ikincil olarak olduğu düşünülen görsel-mekansal beceriler ve bellek ölçümlerinde düşük performans göstermelerinin, frontostriatal devrelerdeki işlev bozukluğu ile açıklanabileceği ileri sürülmektedir.
Cognitive Functions in Obsessive Compulsive Disorder
Research on the neuropsychology of obsessive compulsive disorder (OCD) have contributed to a better understanding of the neurobiological basis of this disorder. Studies of neuropsychological functions have documented deficits in several cognitive domains, particularly with regard to executive functioning, visuospatial abilities, and motor speed in OCD patients. It has also found that OCD patients have difficulty in using an effective learning strategy which might be explained by their insufficient mental flexibility and poor planning abilities. It has been suggested that the poorer performance of the OCD patients in the executive function measures and in the measures of visuospatial skills and memory that seem to be secondary to executive dysfunction can be explained by dysfunctional frontostriatal circuits.

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