Keitaro Murayama
Overview
Explore the profile of Keitaro Murayama including associated specialties, affiliations and a list of published articles.
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Articles
32
Citations
122
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Recent Articles
1.
Matsuo A, Tomiyama H, Murayama K, Kato K, Nishida N, Matsukuma K, et al.
J Psychiatr Res
. 2025 Feb;
183:244-251.
PMID: 40010074
No abstract available.
2.
Murayama K, Tomiyama H, Ohono A, Kato K, Matsuo A, Kang M, et al.
J Neuropsychol
. 2024 Dec;
PMID: 39690440
Decision-making has been suggested as an endophenotype candidate for obsessive-compulsive disorder (OCD). However, few studies have examined whether decision-making under ambiguity is an endophenotype of OCD. This study aimed to...
3.
Kanata T, Takeda K, Fujii T, Iwata R, Hiyoshi F, Iijima Y, et al.
BMC Psychiatry
. 2024 Nov;
24(1):776.
PMID: 39506718
Background: To identify risk factors for mental distress and investigate whether the factors were different between men and women during the coronavirus disease 2019 (COVID-19), using KOKOROBO data, which is...
4.
Tomiyama H, Murayama K, Nemoto K, Kato K, Matsuo A, Kang M, et al.
Psychiatry Res Neuroimaging
. 2024 Sep;
344:111884.
PMID: 39236485
Obsessive-compulsive disorder (OCD) is characterized by structural alteration within white matter tissues of cortico-striato-thalamo-cortical, temporal and occipital circuits. However, the presence of microstructural changes in the white matter tracts of...
5.
Kato K, Tomiyama H, Murayama K, Mizobe T, Matsuo A, Nishida N, et al.
Front Psychiatry
. 2024 Jul;
15:1399062.
PMID: 38966185
Background: Hoarding disorder (HD) is characterized by cognitive control impairments and abnormal brain activity in the insula and anterior cingulate cortex (ACC) during disposal of personal items or certain executive...
6.
Sugita S, Hata K, Kodaiarasu K, Takamatsu N, Kimura K, Miller C, et al.
PCN Rep
. 2024 Jul;
3(3):e223.
PMID: 38962000
The aim of this scoping review was to synthesize published studies and ongoing clinical trials of psychological interventions for mental health problems associated with COVID-19 infection. The study protocol was...
7.
Murata F, Maeda M, Murayama K, Nakao T, Fukuda H
J Psychiatr Res
. 2024 Apr;
174:12-18.
PMID: 38598975
This retrospective cohort study examined the incidence of post-COVID psychiatric disorders in older adults according to hospitalization status and SARS-CoV-2 variant period in Japan. Claims data, COVID-19 case-related information, and...
8.
Murata F, Maeda M, Murayama K, Nakao T, Fukuda H
Brain Behav Immun
. 2024 Feb;
117:521-528.
PMID: 38355026
Background: The associations between COVID-19 vaccination and post-COVID psychiatric disorders are unclear. Furthermore, it is uncertain if these associations differ depending on the dominant SARS-CoV-2 variant at the time of...
9.
Murayama K, Tomiyama H, Ohno A, Kato K, Matsuo A, Hasuzawa S, et al.
Front Psychiatry
. 2023 Oct;
14:1227057.
PMID: 37840793
Background: Patients with obsessive-compulsive disorder (OCD) have deficits in decision-making in the Iowa Gambling Task (IGT). However, no study has investigated the parameters of the prospect valence learning (PVL) model...
10.
Tomiyama H, Murayama K, Nemoto K, Tomita M, Hasuzawa S, Mizobe T, et al.
Psychiatry Res Neuroimaging
. 2023 Jul;
334:111669.
PMID: 37393805
Recent evidence suggests that broad brain regions, not limited to the fronto-striato-thalamo-cortical circuit, play an important role in motor response inhibition. However, it is still unclear which specific key brain...