- 著者
- Rei Wake Tsuyoshi Miyaoka Kazunori Kawakami Motohide Furuya Masa Ieda Liaury Kristian Keiko Tsuchie Akira Nishida Takuji Inagaki Jun Horiguchi
- 出版者
- Japan Brain Science society
- 雑誌
- 脳科学誌 (ISSN:13415301)
- 巻号頁・発行日
- vol.36, pp.4-17, 2011-03-30 (Released:2017-06-01)
- 参考文献数
- 39
Objective: We attempted to identify the locus of cerebral blood flow reduction to clarify the functional neuroanatomical basis of the first-episode schizophrenia. A secondary objective was to evaluate the diagnostic value a new analytical program, easy Z-score Imaging System (eZIS). Method: We performed single photon emission computed tomography (SPECT) with 99-Tc-ethyl cysteinate dimmer (^<99m>Tc-ECD) of the brains of patients with the first-episode schizophrenia (n=30) and normal controls (n=37) and evaluated the diagnostic value of brain perfusion SPECT using eZIS on patients with schizophrenia. Result: In comparison with normal controls, the patients with schizophrenia were found to have reduced blood flow in bilateral frontal and temporal areas. Conclusion: In our study, patients with the first-episode schizophrenia appeared to have significant bilateral fronto-temporal hypoperfusion. Demonstration of abnormality of frontal and temporal lobe blood flow may assist in the diagnosis of schizophrenia and determination of appropriate treatment for individuals with schizophrenia.
- 著者
- Kikuko Nagao Mitsuru Kikuchi Gerard B. Remijn Yoshio Minabe Shoichi Koizumi Haruhiro Higashida Toshio Munesue
- 出版者
- Japan Brain Science society
- 雑誌
- 脳科学誌 (ISSN:13415301)
- 巻号頁・発行日
- vol.36, pp.18-31, 2011-03-30 (Released:2017-06-01)
- 参考文献数
- 21
Objective: This study examined the correlations between the development of cognitive/behavioral skills, and spontaneous magnetoencephalogram (MEG) in 3-4-year-old healthy children. Although MEG is non-invasive and easier for applying to infants, there has been no previous study relating cognitive/behavioral development of preschool children with MEG data. Methods: The cognitive skills were evaluated by the Japanese adaptation of the Kaufman Assessment Battery for Children (K-ABC). The behavioral skills were assessed by Pervasive Developmental Disorders Autism Society Japan Rating Scale (PARS). Spontaneous brain activity was measured from 52 children (23 male subjects and 29 female subjects) in an eye-closed condition. Results: The power spectral densities were calculated from the MEG data. We found frequency-band correlations between the power spectral densities and some cognitive/behavioral scores for the eye-closed condition. In female subjects, there was a significant negative relationship between cognitive skill scores and the theta power spectral density of the frontal/temporal area. In male subjects, there was a significant negative relationship between the maladaptive behavior score and the beta power spectral density of the frontal/central area. Conclusions: These results demonstrate interesting differences in the cognitive/behavioral development between 3-4-year-old males and females. We are continuing further research especially focused on maladaptive behaviors, including Pervasive Developmental Disorders (PDD) symptoms, and related gender differences.