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Hirokage Ushijima · SciRah

Researcher profile · Semantic Scholar

Hirokage Ushijima

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Hirokage Ushijima — researcher profile on SciRah

h-index: 14
Works: 28
Citations: 490

Most-cited papers

Relationships between Traumatic Symptoms and Environmental Damage Conditions among Children 8 Months after the 2011 Japan Earthquake and Tsunami
M. Usami, Y. Iwadare, M. Kodaira, Kyota Watanabe +11 more
2012PLoS ONE69 citations Open access
Semantic Scholar
Sleep Duration among Children 8 Months after the 2011 Japan Earthquake and Tsunami
M. Usami, Y. Iwadare, M. Kodaira, Kyota Watanabe +11 more
2013PLoS ONE42 citations Open access
Semantic Scholar
Posttraumatic symptoms in elementary and junior high school children after the 2011 Japan earthquake and tsunami: symptom severity and recovery vary by age and sex.
Y. Iwadare, M. Usami, Yuriko Suzuki, Hirokage Ushijima +4 more
2014Jornal de Pediatria37 citations
Semantic Scholar
Changes in traumatic symptoms and sleep habits among junior high school students after the Great East Japan Earthquake and Tsunami
Y. Iwadare, M. Usami, Hirokage Ushijima, Tetsuya Tanaka +6 more
201431 citations
Semantic Scholar
Poor performance on the Iowa gambling task in children with obsessive-compulsive disorder
M. Kodaira, Y. Iwadare, Hirokage Ushijima, A. Oiji +6 more
2012Annals of General Psychiatry31 citations Open access
Semantic Scholar
Analysis of Changes in Traumatic Symptoms and Daily Life Activity of Children Affected by the 2011 Japan Earthquake and Tsunami over Time
M. Usami, Y. Iwadare, Kyota Watanabe, M. Kodaira +6 more
2014PLoS ONE28 citations Open access
Semantic Scholar
Behavioral symptoms and sleep problems in children with anxiety disorder
Y. Iwadare, Y. Kamei, M. Usami, Hirokage Ushijima +4 more
2015Pediatrics International24 citations
Semantic Scholar
Sense of coherence, health problems, and presenteeism in Japanese university students.
A. Mikami, Masateru Matsushita, Hiroyoshi Adachi, Nakamori Suganuma +7 more
2013Asian Journal of Psychiatry24 citations
Semantic Scholar
Addressing challenges in children’s mental health in disaster-affected areas in Japan and the Philippines – highlights of the training program by the National Center for Global Health and Medicine
M. Usami, M. F. T. Lomboy, N. Satake, C. A. Estrada +13 more
2018BMC Proceedings20 citations Open access
Semantic Scholar
Sleep duration and its association with sleepiness and depression in "ronin-sei" preparatory school students.
Masateru Matsushita, Asuka Koyama, Hirokage Ushijima, A. Mikami +6 more
2014Asian Journal of Psychiatry20 citations
Semantic Scholar
Prosocial Behaviors during School Activities among Child Survivors after the 2011 Earthquake and Tsunami in Japan: A Retrospective Observational Study
M. Usami, Y. Iwadare, Kyota Watanabe, M. Kodaira +8 more
2014PLoS ONE19 citations Open access
Semantic Scholar
Association between depression, examination‐related stressors, and sense of coherence: The ronin‐sei study
Asuka Koyama, Masateru Matsushita, Hirokage Ushijima, T. Jono +1 more
2014Psychiatry and Clinical Neurosciences18 citations Open access
Semantic Scholar
Decrease in the Traumatic Symptoms Observed in Child Survivors within Three Years of the 2011 Japan Earthquake and Tsunami
M. Usami, Y. Iwadare, Kyota Watanabe, M. Kodaira +6 more
2014PLoS ONE17 citations Open access
Semantic Scholar
Did Parents and Teachers Struggle with Child Survivors 20 Months after the 2011 Earthquake and Tsunami in Japan? A Retrospective Observational Study
M. Usami, Y. Iwadare, M. Kodaira, Kyota Watanabe +6 more
2014PLoS ONE15 citations Open access
Semantic Scholar
Dysfunction of orbitofrontal and dorsolateral prefrontal cortices in children and adolescents with high-functioning pervasive developmental disorders
T. Sawa, M. Kodaira, A. Oiji, Daimei Sasayama +5 more
2013Annals of General Psychiatry14 citations Open access
Semantic Scholar
What Time Periods of the Day Are Concerning for Parents of Children with Attention Deficit Hyperactivity Disorder?
M. Usami, T. Okada, Daimei Sasayama, Y. Iwadare +6 more
2013PLoS ONE14 citations Open access
Semantic Scholar
A case-control study of the difficulties in daily functioning experienced by children with depressive disorder.
M. Usami, Y. Iwadare, Kyota Watanabe, Hirokage Ushijima +5 more
2015Journal of Affective Disorders12 citations
Semantic Scholar
Concerns Expressed by Parents of Children with Pervasive Developmental Disorders for Different Time Periods of the Day: A Case–Control Study
Yoshinori Sasaki, M. Usami, Daimei Sasayama, T. Okada +10 more
2015PLoS ONE11 citations Open access
Semantic Scholar
No Associations of Psychological Symptoms and Suicide Risk with Disaster Experiences in Junior High School Students 5 Years After the 2011 Great East Japan Earthquake and Tsunami
Kazuhiro Kawahara, Hirokage Ushijima, M. Usami, M. Takebayashi
2020Neuropsychiatric Disease and Treatment10 citations Open access
Semantic Scholar
Did kindergarteners who experienced the Great East Japan earthquake as infants develop traumatic symptoms? Series of questionnaire-based cross-sectional surveys: A concise and informative title: traumatic symptoms of kindergarteners who experienced disasters as infants.
M. Usami, Y. Iwadare, Hirokage Ushijima, K. Inazaki +20 more
2019Asian Journal of Psychiatry10 citations
Semantic Scholar
Long-Term Fluctuations in Traumatic Symptoms of High School Girls Who Survived from the 2011 Japan Tsunami: Series of Questionnaire-Based Cross-Sectional Surveys
M. Usami, Y. Iwadare, Kyota Watanabe, M. Kodaira +3 more
2016Child Psychiatry and Human Development8 citations
Semantic Scholar
Time course of the development of depressive mood and oppositional defiant behavior among boys with attention deficit hyperactivity disorder: Differences between subtypes
Hirokage Ushijima, M. Usami, K. Saito, M. Kodaira +1 more
2012Psychiatry and Clinical Neurosciences8 citations Open access
Semantic Scholar
Effects of testosterone therapy on bipolar disorder with Klinefelter syndrome.
Kazuhiro Kawahara, T. Jono, Yoshitomo Nishi, Hirokage Ushijima +1 more
2015General Hospital Psychiatry7 citations
Semantic Scholar
Long-Term Fluctuations in Traumatic Symptoms of High School Girls Who Survived from the 2011 Japan Tsunami: Series of Questionnaire-Based Cross-Sectional Surveys
M. Usami, Y. Iwadare, Kyota Watanabe, M. Kodaira +3 more
2016Child Psychiatry and Human Development1 citations
Semantic Scholar
NDT_A_269835 2377..2387
Hirokage Ushijima, Masahide Usami
20200 citations
Semantic Scholar
A Case of Intravascular Large B-cell Lymphoma with Depressive Symptoms
Kazuhiro Kawahara, T. Jono, Y. Honda, S. Yokota +3 more
2012Kyushu Neuropsychiatry0 citations Open access
Semantic Scholar
DIALECTICAL BEHAVIOUR THERAPY FOR A WOMAN WITH BORDERLINE PERSONALITY DISORDER: A CASE REPORT
Masateru Matsushita, Y. Miyagawa, Hirokage Ushijima, Miyuki Tanaka +2 more
20120 citations
Semantic Scholar
[Present situation in commitment of mentally disordered offenders in a psychiatric hospital in Japan].
S. Hanawa, J. Hamamoto, Nao Otsuka, Hirokage Ushijima
2003Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica0 citations
Semantic Scholar

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M. Usami×20
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M. Usami — researcher profile on SciRah
M. Kodaira×18
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M. Kodaira — researcher profile on SciRah
K. Saito×18
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K. Saito — researcher profile on SciRah
Y. Iwadare×17
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Y. Iwadare — researcher profile on SciRah

×17

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Kyota Watanabe — researcher profile on SciRah

Tetsuya Tanaka×13

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Maiko Harada×9

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Hiromi Tanaka×9

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Yoshinori Sasaki×9

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Yoshinori Sasaki — researcher profile on SciRah

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Daimei Sasayama×5

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Daimei Sasayama — researcher profile on SciRah

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T. Jono — researcher profile on SciRah