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Iranian Journal of Psychiatry، جلد ۹، شماره ۴، صفحات ۲۱۶-۲۲۱
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عنوان انگلیسی Quantitative electroencephalogram (QEEG) Spectrum Analysis of Patients with Schizoaffective Disorder Compared to Normal Subjects.
چکیده انگلیسی مقاله Objective: The aim of this study was to achieve a better understanding of schizoaffective disorder. Therefore, we obtained electroencephalogram (EEG) signals from patients with schizoaffective disorder and analyzed them in comparison to normal subjects. Method: Forty patients with schizoaffective disorder and 40 normal subjects were selected randomly and their electroencephalogram signals were recorded based on 10-20 international system by 23 electrodes in open- and closed-eyes while they were sitting on a chair comfortably. After pre-processing for noise removal and artifact reduction, we took 60- second segments from each recorded signals. Then, the absolute and relative powers of these segments were evaluated in all channels and in 4 frequency bands (i.e., delta, theta, alpha and beta waves). Finally, Data were analyzed by independent t-test using SPSS software. Results: A significant decrease in relative power in the alpha band, a significant decrease in power spectra in the alpha band and a significant increase in power spectra in the beta band were found in patients compared to normal subjects (P < 0.05). The predominant wave in the centro-parietal region was the beta wave in patients, but it was the alpha band in normal subjects (P = 0.048). Also, the predominant wave of the occipital region in patients was the delta wave, while it was the alpha wave in normal subjects (P = 0.038). Conclusion: Considering the findings, particularly based on the significant decrease of the alpha waves in schizoaffective patients, it can be concluded that schizoaffective disorder can be seen in schizophrenia spectrum.
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نویسندگان مقاله مهدی معینی | mahdi moeini
university of social welfare and rehabilitation sciences, razi psychiatric hospital, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم بهزیستی و توانبخشی (University of social welfare and rehabilitation sciences)

علی خالقی | ali khaleghi
psychiatry amp;amp; psychology research center, tehran university of medical sciences, tehran, iran ; department of biomedical engineering, science and research branch, islamic azad university, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

نسرین امیری | nasrin amiri
university of social welfare and rehabilitation sciences, razi psychiatric hospital, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم بهزیستی و توانبخشی (University of social welfare and rehabilitation sciences)

زهرا نیکنام | zahra niknam
university of social welfare and rehabilitation sciences, razi psychiatric hospital, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم بهزیستی و توانبخشی (University of social welfare and rehabilitation sciences)

نشانی اینترنتی http://ijps.tums.ac.ir/index.php/ijps/article/view/70
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