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Yıl:2009; Cilt: 2; Sayı: 1>> Özet
TAM METİN
Türkiye Klinikleri Psikiyatri Özel Dergisi; 2009;2(1):10-19
Dürtüsellik
G Karakuş
Çukurova Ü. Tıp Fak. Psikiyatri AD, Adana
Dürtü organizmanın uyarılmış bir durumudur. Bir eksiklik, hoş olmayan bir uyarının etkisi altında dengesi değişmiş olan organizmanın eski durumunu alabilmesi için bir itme, bir canlanmadır. Dürtüsellikle ilgili birçok tanımlama yapılmış, dürtüselliği değerlendirmek için çok sayıda yöntem kullanılmıştır. Dürtüsellik birçok günlük olayda da karşımıza çıkar. Dürtüsellik etyolojisinin araştırılmasında hem nörotransmiter hem nörogörüntüleme çalışmaları önemli yer tutar. Psikopatolojik çalımalar daha çok serotonin ve dopamin etkilenmesini göstermiştir. Dürtüselliğin nörogörüntüleme ve fonksiyonel nörogörüntüleme çalışmalarında başta frontal lob olmak üzere çeşitli beyin bölgelerinde etkilenmeden bahsedilmektedir. Dürtüselliğin ölçümünde özbildirim testleri, davranışsal laboratuar ölçümleri ve olayla ilişkili potansiyeller kullanılır. Dürtüsellik eylemi madde kötüye kullanımı, özkıyım davranışı ve diğer ciddi davranışsal problemlerle sonuçlanabilir. Dürtüsellikle karakterize ruhsal hastalıklar çocuk ve erişkinlerde farklı gruplarda bulunmaktadır. Bu gözden geçirmede dürtüsellikle ilgili geçmişten bugüne yapılmış tanımlamalar; etyolojisinde nöroanatomik bozuklukların ve nörotransmiterlerin rolü; değerlendirilmesinde kullanılan yöntemler ve dürtüselliğin diğer psikiyatrik hastalıklarla ilişkisi ele alınmıştır.
Impulsivity
Impulse is the evoked phase of the organism. It’s a drive, resurgence in an organism with altered balance under the influence of a deficency, an unpleasant stimulus to restore back its original position. Many definitions are put forward regarding impulsivity and many different methods have been used to evaluate the concept. Impulsivity is being viewed in myriad number of everyday events. Both neurotransmitter and neuroimaging studies are important in the research area of impulsivity etiology. Psychopathological studies have mostly demonstrated serotonergic and dopaminergic effects. Neuroimaging and functional neuroimaging studies of impulsivity have reported brain regions affected, particularly frontal lobe. Measuring impulsivity self-acknowledgement tests, behavioural laboratory measures and potentials in respect to the event are being used. Impulsivity act may wind up to substance abuse, suicidal gestures and serious behavioural consequences. Psychiatric illnesses characterised by impulsivity are grouped seperately into children and adults. In this review, definitions regarding impulsivity from past to the present; the role of the neuroanatomic distortions and neurotransmitters in its etiology; methods applied to evaluate it and its relation with other psychiatric illnesses have been adressed.

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