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Hirokazu Fujita · SciRah

Researcher profile · Semantic Scholar

Hirokazu Fujita

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Hirokazu Fujita — researcher profile on SciRah

h-index: 17
Works: 34
Citations: 777

Most-cited papers

Brief behavioral therapy for refractory insomnia in residual depression: an assessor-blind, randomized controlled trial.
Norio Watanabe, T. Furukawa, S. Shimodera, Ippei Morokuma +5 more
2011Journal of Clinical Psychiatry129 citations
Semantic Scholar
Family psychoeducation for major depression: randomised controlled trial
K. Shimazu, S. Shimodera, Y. Mino, A. Nishida +5 more
2011British Journal of Psychiatry93 citations Open access
Semantic Scholar
Optimising first- and second-line treatment strategies for untreated major depressive disorder — the SUN☺D study: a pragmatic, multi-centre, assessor-blinded randomised controlled trial
Tadashi Kato, T. Furukawa, Akio Mantani, Ken'ichi Kurata +31 more
2018BMC Medicine60 citations Open access
Semantic Scholar
Differential impacts of duration of untreated psychosis (DUP) on cognitive function in first-episode schizophrenia according to mode of onset
Shinya Ito, T. Nemoto, Naohisa Tsujino, Noriyuki Ohmuro +12 more
2015European psychiatry47 citations
Semantic Scholar
Association study of polymorphism in the serotonin transporter gene promoter, methylation profiles, and expression in patients with major depressive disorder
J. Iga, Shin-ya Watanabe, S. Numata, Hidehiro Umehara +6 more
2016Human psychopharmacology45 citations
Semantic Scholar
Biological tests for major depressive disorder that involve leukocyte gene expression assays.
Shin-ya Watanabe, J. Iga, Kazuo Ishii, S. Numata +3 more
2015Journal of Psychiatric Research38 citations
Semantic Scholar
Psychoeducation for major depressive disorders: a randomised controlled trial.
Ippei Morokuma, S. Shimodera, Hirokazu Fujita, H. Hashizume +5 more
2013Psychiatry Research34 citations
Semantic Scholar
Cost‐effectiveness of cognitive behavioral therapy for insomnia comorbid with depression: Analysis of a randomized controlled trial
Norio Watanabe, T. Furukawa, S. Shimodera, Fujika Katsuki +4 more
2015Psychiatry and Clinical Neurosciences33 citations Open access
Semantic Scholar
Cognitive and Behavioral Skills Exercises Completed by Patients with Major Depression During Smartphone Cognitive Behavioral Therapy: Secondary Analysis of a Randomized Controlled Trial
T. Furukawa, M. Horikoshi, Hirokazu Fujita, Naohisa Tsujino +16 more
2018JMIR Mental Health31 citations Open access
Semantic Scholar
Family attitude scale: measurement of criticism in the relatives of patients with schizophrenia in Japan.
Hirokazu Fujita, S. Shimodera, Yuji Izumoto, Shuichi Tanaka +3 more
2002Psychiatry Research31 citations
Semantic Scholar
Expressed emotion of families and the course of mood disorders: a cohort study in Japan.
Y. Mino, S. Shimodera, Shimpei Inoue, Hirokazu Fujita +2 more
2001Journal of Affective Disorders30 citations
Semantic Scholar
Effect of a family psychoeducational program on relatives of schizophrenia patients
Satoko Sota, S. Shimodera, M. Kii, Kayoko Okamura +5 more
2008Psychiatry and Clinical Neurosciences29 citations Open access
Semantic Scholar
Expressed emotion and family distress in relatives of patients with schizophrenia in Japan.
S. Shimodera, Y. Mino, Shimpei Inoue, Yuji Izumoto +2 more
2000Comprehensive Psychiatry28 citations
Semantic Scholar
Mapping hypofrontality during letter fluency task in schizophrenia: a multi-channel near-infrared spectroscopy study.
S. Shimodera, Yutaka Imai, N. Kamimura, Ippei Morokuma +3 more
2012Schizophrenia Research27 citations
Semantic Scholar
Medical cost analysis of family psychoeducation for schizophrenia
Y. Mino, S. Shimodera, Shimpei Inoue, Hirokazu Fujita +1 more
2007Psychiatry and Clinical Neurosciences20 citations
Semantic Scholar
Prediction of remission in pharmacotherapy of untreated major depression: development and validation of multivariable prediction models
T. Furukawa, Tadashi Kato, Yoshihiro Shinagawa, Kazuhira Miki +5 more
2018Psychological Medicine18 citations Open access
Semantic Scholar
Change in Quality of Life after Brief Behavioral Therapy for Insomnia in Concurrent Depression: Analysis of the Effects of a Randomized Controlled Trial
S. Shimodera, Norio Watanabe, T. Furukawa, Fujika Katsuki +3 more
2014Journal of Clinical Sleep Medicine (JCSM)18 citations Open access
Semantic Scholar
Residential program for long‐term hospitalized persons with mental illness in Japan: Randomized controlled trial
H. Chan, Shimpei Inoue, S. Shimodera, Hirokazu Fujita +5 more
2007Psychiatry and Clinical Neurosciences14 citations
Semantic Scholar
Duration of untreated psychosis in a rural/suburban region of Japan
Lihong Qin, S. Shimodera, Hirokazu Fujita, Ippei Morokuma +5 more
2012Early Intervention in Psychiatry13 citations
Semantic Scholar
The first 100 patients in the SUN(^_^)D trial (strategic use of new generation antidepressants for depression): examination of feasibility and adherence during the pilot phase
S. Shimodera, Tadashi Kato, Hirotoshi Sato, Kazuhira Miki +11 more
2012Trials11 citations Open access
Semantic Scholar
Validity of a five-minute speech sample for the measurement of expressed emotion in the families of Japanese patients with mood disorders.
S. Shimodera, Y. Mino, Hirokazu Fujita, Yuji Izumoto +2 more
2002Psychiatry Research10 citations
Semantic Scholar
Assessing recurrence of depression using a zero-inflated negative binomial model: A secondary analysis of lifelog data.
N. Kumagai, A. Tajika, Akio Hasegawa, Nao Kawanishi +7 more
2021Psychiatry Research9 citations
Semantic Scholar
Can Assessors in a Psychotherapy Trial Be Successfully Blinded? Analysis of a Randomized Controlled Trial on Psychotherapy for Refractory Insomnia in Residual Depression
Norio Watanabe, T. Furukawa, S. Shimodera, Fujika Katsuki +5 more
2013Psychotherapy and Psychosomatics5 citations
Semantic Scholar
Near‐infrared spectroscopy of bipolar disorder may be distinct from that of unipolar depression and of healthy controls
S. Shimodera, Yutaka Imai, N. Kamimura, Ippei Morokuma +3 more
20125 citations
Semantic Scholar
Trial of Videotape Feedback to Train Fifth-Year Undergraduates in Medical Interviewing
Shimpei Inoue, Hirokazu Fujita, Mie Takahashi, Kyoko Kakeda +3 more
20031 citations
Semantic Scholar
Observed inappropriate behaviors during early medical exposure predict future academic performance.
Takashi Kuroe, Hirokazu Fujita, Toshihide Awatani
2026Medical Teacher0 citations
Semantic Scholar
Association between patients’ feedback comments and depressive mood, satisfaction, homework conducted, and dropouts during self‐guided smartphone cognitive behavioral therapy
H. Imai, Nozomi Takeshima, Y. Hayasaka, N. Yonemoto +5 more
2019Psychiatry and Clinical Neurosciences0 citations Open access
Semantic Scholar
EPA-1764 – Effect of Depression-Related Somatic Pain on Treatment Satisfaction and Daily Living Functions
Shinji Shimodera, Aoi Kawamura, Hirokazu Fujita, C. Iwagawa +9 more
2014European psychiatry0 citations
Semantic Scholar
Contents Vol. 82, 2013
A. Risch, S. Taeger, J. Brüdern, U. Stangier +55 more
2013Psychotherapy and Psychosomatics0 citations Open access
Semantic Scholar
[Early intervention in an early psychosis outpatient clinic].
S. Shimodera, Shimpei Inoue, Hirokazu Fujita, Yosuke Suga +1 more
2013Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica0 citations
Semantic Scholar
P-529 - Physical Pain and Depression: a Survey in Japanese Patients and Physicians
Shinji Shimodera, Aoi Kawamura, Hirokazu Fujita, Yosuke Suga +3 more
2012European psychiatry0 citations
Semantic Scholar
The effect of a family psychoeducational program on relatives of patients suffering from schizophrenia
Satoko Sota, S. Shimodera, M. Kii, Kayoko Okamura +5 more
20100 citations
Semantic Scholar
P01-95 - Family Psychoeducational Intervention for Depression
Shinji Shimodera, K. Fukuzawa, Hirokazu Fujita, I. Morokuma +2 more
2010European psychiatry0 citations Open access
Semantic Scholar
Families' expressed emotion and bipolar disorder : A cohort study in Japan
Y. Mino, S. Shimodera, Y. Yonekura, Rei Ka +3 more
20070 citations
Semantic Scholar
Expressed Emotion Studies in Japan
S. Shimodera, Shimpei Inoue, Y. Mino, Hirokazu Fujita
20020 citations
Semantic Scholar

Frequent co-authors

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S. Shimodera×26
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S. Shimodera — researcher profile on SciRah
Shimpei Inoue×19
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Shimpei Inoue — researcher profile on SciRah
T. Furukawa×13
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T. Furukawa — researcher profile on SciRah
Y. Mino×9
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Y. Mino — researcher profile on SciRah

×9

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N. Kamimura — researcher profile on SciRah

Norio Watanabe×8

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Norio Watanabe — researcher profile on SciRah

Ippei Morokuma×6

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Ippei Morokuma — researcher profile on SciRah

Fujika Katsuki×5

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Fujika Katsuki — researcher profile on SciRah

Megumi Sasaki×5

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Megumi Sasaki — researcher profile on SciRah

Naohisa Tsujino×5

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Naohisa Tsujino — researcher profile on SciRah

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M. Perlis — researcher profile on SciRah

Tadashi Kato×4

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Tadashi Kato — researcher profile on SciRah