Naohisa Tsujino

Dr. Naohisa Tsujino


Research Focus & Metrics

Academic Career Length

20Years (2007-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 February 2007 in Neuroscience Research
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Journal Article
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NTNaohisa Tsujino
Naohisa Tsujino
YNYasushi Nakatani
Yasushi Nakatani
YSYoshinari Seki
Yoshinari Seki
ANAkane Nakasato
Akane Nakasato
MNMichiko Nakamura
Michiko Nakamura
HAHideho Arita
Hideho Arita

1 May 2018 in Psychiatry Research
Verified
Journal Article
Closed access
SASayaka Aikawa
Sayaka Aikawa
HKHiroyuki Kobayashi
Hiroyuki Kobayashi
Takahiro NemotoTakahiro Nemoto
Takahiro Nemoto
SMSatoshi Matsuo
Satoshi Matsuo
YWYo Wada
Yo Wada
MMMasafumi Mizuno
Masafumi Mizuno

3 September 2020 in Psychiatry and Clinical Neurosciences
Verified
Journal Article
Open access
PDF file
HIHitoshi Iida
Hitoshi Iida
JIJunichi Iga
Junichi Iga
NHNaomi Hasegawa
Naomi Hasegawa
YYYuka Yasuda
Yuka Yasuda
TYTomoya Yamamoto
Tomoya Yamamoto
RHRyota Hashimoto
Ryota Hashimoto
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11 January 2018 in JMIR Mental Health
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Journal Article
Open access
TFToshi A Furukawa
Toshi A Furukawa
MHMasaru Horikoshi
Masaru Horikoshi
HFHirokazu Fujita
Hirokazu Fujita
NTNaohisa Tsujino
Naohisa Tsujino
RJRan Jinnin
Ran Jinnin
AHAkio Hasegawa
Akio Hasegawa
Background: A strong and growing body of evidence has demonstrated the effectiveness of cognitive behavioral therapy (CBT), either face-to-face, in person, or as self-help via the Internet, for depression. However, CBT is a complex intervention consisting of several putatively effective components, and how each component may or may not contribute to the overall effectiveness of CBT is poorly understood. Objective: The aim of this study was to investigate how the users of smartphone CBT use and benefit from various components of the program. Methods: This is a secondary analysis from a 9-week, single-blind, randomized controlled trial that has demonstrated the effectiveness of adjunctive use of smartphone CBT (Kokoro-App) over antidepressant pharmacotherapy alone among patients with drug-resistant major depressive disorder (total n=164, standardized mean difference in depression severity at week 9=0.40, J Med Internet Res). Kokoro-App consists of three cognitive behavioral skills of self-monitoring, behavioral activation, and cognitive restructuring, with corresponding worksheets to fill in. All activities of the participants learning each session of the program and completing each worksheet were uploaded onto Kokoro-Web, which each patient could use for self-check. We examined what use characteristics differentiated the more successful users of the CBT app from the less successful ones, split at the median of change in depression severity. Results: A total of 81 patients with major depression were allocated to the smartphone CBT. On average, they completed 7.0 (standard deviation [SD] 1.4) out of 8 sessions of the program; it took them 10.8 (SD 4.2) days to complete one session, during which they spent 62 min (SD 96) on the app. There were no statistically significant differences in the number of sessions completed, time spent for the program, or the number of completed self-monitoring worksheets between the beneficiaries and the nonbeneficiaries. However, the former completed more behavioral activation tasks, engaged in different types of activities, and also filled in more cognitive restructuring worksheets than the latter. Activities such as “test-drive a new car,” “go to a coffee shop after lunch,” or “call up an old friend” were found to be particularly rewarding. All cognitive restructuring strategies were found to significantly decrease the distress level, with “What would be your advice to a friend who has a similar problem?” found more helpful than some other strategies. Conclusions: The CBT program offered via smartphone and connected to the remote server is not only effective in alleviating depression but also opens a new avenue in gathering information of what and how each participant may utilize the program. The activities and strategies found useful in this analysis will provide valuable information in brush-ups of the program itself and of mobile health (mHealth) in general. Trial Registration: Japanese Clinical Trials Registry UMIN CTR 000013693; https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ ctr_view.cgi?recptno=R000015984 (Archived by WebCite at http://www.webcitation.org/6u6pxVwik)

28 December 2013 in Clinical Psychopharmacology and Neuroscience
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Journal Article
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NTNaohisa Tsujino
Naohisa Tsujino
TNTakahiro Nemoto
Takahiro Nemoto
KMKeiko Morita
Keiko Morita
NKNaoyuki Katagiri
Naoyuki Katagiri
SIShinya Ito
Shinya Ito
MMMasafumi Mizuno
Masafumi Mizuno
Tsujino N, et al. Clin Psychopharmacol Neurosci. 2013 Dec;11(3):132-136. http://dx.doi.org/10.9758/cpn.2013.11.3.132

28 December 2021 in BMC Pregnancy and Childbirth
Verified
Journal Article
Open access
PDF file
YTYouji Takubo
Youji Takubo
NTNaohisa Tsujino
Naohisa Tsujino
YAYuri Aikawa
Yuri Aikawa
KFKazuyo Fukiya
Kazuyo Fukiya
MIMomoko Iwai
Momoko Iwai
TNTakahiro Nemoto
Takahiro Nemoto
Background: The coronavirus disease 2019 (COVID-19) pandemic has recently become the most important issue in the world. Very few reports in Japan have examined the impact of the COVID-19 pandemic on peripartum mental health. We examined the status of postpartum mental health before and during COVID-19 pandemic from a consecutive database in a metropolitan area of Japan. Methods: The subjects were women who had completed a maternity health check-up at a core regional hospital in Yokohama during the period from April 1, 2017, to December 31, 2020. We collected the subjects’ scores for the Edinburgh Postnatal Depression Scale (EPDS) and the Mother-to-Infant Bonding Scale (MIBS) at 1 month postpartum. The subjects were divided into four groups (three Before COVID-19 groups and a During COVID-19 group). MANOVA and post-hoc tests were used to determine mental health changes in the postpartum period among the four groups. Results: The Before and During COVID-19 groups contained 2844 and 1095 mothers, respectively. There were no significant difference in the total scores of the EPDS and MIBS among the four groups. However, the EPDS items related to anxiety factors were significantly higher and the EPDS items related to anhedonia and depression factors (excluding thoughts of self-harm) were significantly lower in the During COVID-19 group. Conclusion: The EPDS scores changed in connection with the COVID-19 pandemic. Anxiety, which represent hypervigilance, was significantly higher and anhedonia and depression were significantly lower in the During COVID-19 group. Our results may reflect COVID-19-related health concerns and a lack of social support caused by the COVID-19 pandemic.