102-107 S.K.norofizyoloji.qxd
نویسنده
چکیده
Günümüzde geliþen teknolojinin bize sunduðu pozitron emisyon tomografi (PET), magnetoensefalografi, tek foton emisyon komputerize tomografi (SPECT), bilgisayarlý beyin tomografisi, manyetik rezonans gibi görüntüleme yöntemleri ile birlikte elektroensefalografi (EEG) (uyarýlmýþ potansiyeller ve olaya iliþkin potansiyeller de dahil olmak üzere) sadece araþtýrma amaçlý deðil doðrudan klinik uygulamada yer edinen yöntemlerdir. Bu yazý, EEG ve diðer elektrofizyolojik yöntemlerin þizofrenide kullanýmý üzerine odaklanmýþtýr. Bu alanda klinik kullanýma iliþkin çalýþmalar giderek artmaktadýr (Hughes 1995, Karaman 1996, McCarley ve ark. 1991). Elektrofizyolojik yöntemlerin diðer görüntüleme yöntemlerine göre, bireyin herhangi bir kimyasal ve radyoaktif madde ile karþýlaþmamasý, kolay uygulanýr ve ucuz olmasý gibi bazý avantajlarý vardýr. Beyin yapýlarýnda olasý uzaysal iliþkiyi gösterememesi dezavantajý bulunmaktadýr. Ancak biliþsel süreçlerde zamansal deðiþim sürecini yansýtmasý önemlidir.
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