Obsesif Kompulsif Bozuklukta Bellek, Belleğe Güven ve Bilme Hissi Kararları Arasındaki İlişkiler

Bu çalışmada obsesif kompulsif bozukluk tanısı almış hastalarda farklı bellek performansları, belleğe duyulan güven ve bilme hissi kararları arasındaki ilişkilerin incelenmesi amaçlanmıştır. Çalışma, DSM-IV-TR tanı ölçütlerine göre obsesif kompulsif bozukluk tanısı almış 11 hasta (klinik grup), 11 obsesif-kompulsif belirtiler gösteren ancak tanı almamış birey (eşik altı grup) ve 11 sağlıklı birey (sağlıklı kontrol grubu) olmak üzere toplam 33 katılımcı ile yürütülmüştür. Katılımcıların olaysal bellek, görsel uzamsal bellek ve çalışma belleği olmak üzere farklı bellek performanslarına yönelik ölçüm alınmıştır. Ayrıca olaysal bellek görevinde belleğe duyulan güven ve bilme hissi kararları da ölçülmüştür. Obsesif kompulsif bozukluk tanılı hastaların diğer iki grupla karşılaştırıldığında, bütün bellek performanslarının düşük olduğu, bu görevler sırasında daha yavaş oldukları, belleğe duyulan güven açısından daha olumsuz oldukları, bilme hissi kararlarının düşük ve gelecekteki bellek performanslarının başarısına ilişkin tahminlerinin de daha tutarsız ve düşük olduğu görülmüştür. Bulgular, obsesif kompulsif bozukluktaki bellek süreçlerinin incelenmesinde, belleğe duyulan güven ve belleğe ilişkin üstbilişsel değerlendirmelerin, genel bellek performansından daha fazla bilgi verici ve obsesif kompulsif bozukluk tanılı hastaların diğer gruplardan ayırt etmede daha başarılı süreçler olduğuna işaret etmiştir.

Anahtar Kelimeler:

obsesif kompulsif bozukluk, bellek, belleğe duyulan güven, üstbiliş

Roles of Memory, Memory Confidence and Feeling of Knowing Judgments in Obsessive Compulsive Disorder

The aim of the present study was to investigate roles of differential memory profiles, memory confidence and metacognitive judgments in patients with obsessive compulsive disorder. Thirty-three individuals participated in the study: 11 patients with obsessive compulsive disorder, 11 individuals with subclinical obsessive compulsive symptoms and 11 healthy controls. Participants’ three different memory performances namely episodic memory, visuo-spatial memory, and working memory and the memory confidence and feeling-of-knowing judgments under episodic memory task were measured. Patients with obsessive compulsive disorder showed lower performance and slower reaction times in all memory tasks than both subclinical and healthy controls. Also compared to other groups, patients with obsessive compulsive disorder had less confidence on their own memory, less confidence on their future memory performance, and low feeling-of-knowing judgments. These results indicated that reaction time, memory confidence, and metacognitive judgments provide better information about the memory impairments in obsessive compulsive disorder rather than general memory performance.

Keywords:

Obsessive-compulsive disorder, memory, memory confidence, meta-cognition,

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