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RISS 인기검색어
- 검색키워드
- 저자 : Yasuo Kawabata (검색결과 3 건)
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Comparative Analysis of the WISC between Two ADHD Subgroups
Yoichiro Kubo,Tetsufumi Kanazawa,Yasuo Kawabata,Koyuki Tanaka,Tatsushi Okayama,Miho Fujta,Atsushi Tsutsumi,Shingo Yokota,Hiroshi Yoneda 대한신경정신의학회 2018 PSYCHIATRY INVESTIGATION Vol.15 No.2
ObjectiveaaThe prevalence of attention deficit/hyperactivity disorder (ADHD) in school-age children is 7.2%, and ADHD is divided into clinical subtypes. MethodsaaThe current study explored whether specific cognitive profiles as assessed using the Wechsler Intelligence Scale for Children (WISC)-IV could be obtained for each clinical ADHD subtype (ADHD-Inattentive type and ADHD-Combined type) and investigated the correlation between WISC scores and parental age at their children’s birth or birthweight. The enrolled sample comprised 12 ADHD- I and 15 ADHD-C subjects. ResultsaaAn impaired Processing Speed Index was found in ADHD-I. The age of the father at the child’s birth and birthweight positively correlated with the full scale intelligence quotient (FSIQ) score in the WISC assessment. ConclusionaaInattentiveness within the behaviors of the children with ADHD-I is partly due to the impaired processing speed, therefore effective support for ADHD will be conducted if educator decreases their speaking speed. Since biological basis of ADHD is still largely unknown, future studies using both psychological and biological methods will reveal the etiology of ADHD. These scientific assessments will provide information for more effective approaches in the care of children with ADHD.
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Yoshitaka Nishizawa,Tetsufumi Kanazawa,Yasuo Kawabata,Toshio Matsubara,Soichiro Maruyama,Makoto Kawano,Shinya Kinoshita,Jun Koh,Koji Matsuo,Hiroshi Yoneda 대한신경정신의학회 2019 PSYCHIATRY INVESTIGATION Vol.16 No.1
Objective : Accumulated evidence collected via functional near-infrared spectroscopy (fNIRS) has been reported with regard to mental disorders. A previous finding revealed that emotional words evoke left frontal cortex activity in patients with depression. The primary aim of the current study was to replicate this finding using an independent dataset and evaluate the brain region associated with the severity of depression using an emotional Stroop task. Methods : Oxygenized and deoxygenized hemoglobin recording in the brain by fNIRS on 14 MDD patients and 20 normal controls. Results : Hyperactivated oxygenized hemoglobin was observed in the left frontal cortex on exposure to unfavorable stimuli, but no significant difference was found among patients with depression compared with healthy controls on exposure to favorable stimuli. This result is consistent with previous findings. Moreover, an evoked wave associated with the left upper frontal cortex on favorable stimuli was inversely correlated with the severity of depression. Conclusion : Our current work using fNIRS provides a potential clue regarding the location of depression symptom severity in the left upper frontal cortex. Future studies should verify our findings and expand them into a precise etiology of depression.
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Masaki Nishiguchi,Hiroki Kikuyama,Tetsufumi Kanazawa,Atsushi Tsutsumi,Takao Kaneko,Hiroyuki Uenishi,Yasuo Kawabata,Seiya Kawashige,Jun Koh,Hiroshi Yoneda 대한신경정신의학회 2015 PSYCHIATRY INVESTIGATION Vol.12 No.4
ObjectiveaaElectroconvulsive therapy (ECT) is a reasonable option for intractable depression or schizophrenia, but a mechanism of action has not been established. One credible hypothesis is related to neural plasticity. Three genes (Oct4, Sox2, c-Myc) involved in the induction of induced pluripotent stem (iPS) cells are Wnt-target genes, which constitute a key gene group involved in neural plasticity through the TCF family. Klf4 is the other gene among Yamanaka’s four transcription factors, and increases in its expression are induced by stimulation of the canonical Wnt pathway. MethodsaaWe compared the peripheral blood gene expression of the four iPS genes (Oct4, Sox2, c-Myc, and Klf4) before and after modified ECT (specifically ECT with general anesthesia) of patients with intractable depression (n=6) or schizophrenia (n=6). Using Thymatron ten times the total bilateral electrical stimulation was evoked. ResultsaaBoth assessments of the symptoms demonstrated significant improvement after mECT stimulation. Expression of all four genes was confirmed to increase after initial stimulation. The gene expression levels after treatment were significantly different from the initial gene expression in all twelve cases at the following treatment stages: at the 3rd mECT for Oct4; at the 6th and 10th mECT for Sox2; and at the 3rd, 6th and 10th mECT for c-Myc. ConclusionaaThese significant differences were not present after correction for multiple testing; however, our data have the potential to explain the molecular mechanisms of mECT from a unique perspective. Further studie should be conducted to clarify the pathophysiological involvement of iPS-inducing genes in ECT.
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