Publications by authors named "Chika Sumiyoshi"

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Cognitive profile of psychiatric patients with coexisting enlarged ventricles and cognitive impairment: A rare cross-diagnostic phenotype predominantly observed in schizophrenia.
Junya Matsumoto, Satsuki Ito, Chika Sumiyoshi, Yuka Yasuda, Naomi Hasegawa, Tomiki Sumiyoshi

Psychiatry Clin Neurosci· December 2025

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Predicting models for work outcomes in patients with schizophrenia and its clinical application.
Chika Sumiyoshi, Satsuki Ito, Junya Matsumoto, Hidenaga Yamamori, Michiko Fujimoto, Tomiki Sumiyoshi

Sci Rep· May 2025

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Semantic memory disorganization linked to social functioning in patients with schizophrenia.
Ayumu Wada, Chika Sumiyoshi, Naoki Yoshimura, Ryota Hashimoto, Junya Matsumoto, Tomiki Sumiyoshi

Schizophrenia (Heidelb)· April 2025

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Usefulness of the WAIS-IV Short Form for Measuring Cognitive Function in Patients With Schizophrenia.
Satsuki Ito, Chika Sumiyoshi, Junya Matsumoto, Kenichiro Miura, Yuka Yasuda, Tomiki Sumiyoshi

Neuropsychopharmacol Rep· March 2025

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Proposal for a Novel Classification of Patients With Enlarged Ventricles and Cognitive Impairment Based on Data-Driven Analysis of Neuroimaging Results in Patients With Psychiatric Disorders.
Yuka Yasuda, Satsuki Ito, Junya Matsumoto, Naohiro Okada, Toshiaki Onitsuka, Chika Sumiyoshi

Neuropsychopharmacol Rep· March 2025

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Autistic trait severity in early schizophrenia: Role in subjective quality of life and social functioning.
Ayumu Wada, Risa Yamada, Yuji Yamada, Chika Sumiyoshi, Ryota Hashimoto, Tomiki Sumiyoshi

Schizophr Res· January 2025

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Transdiagnostic comparisons of intellectual abilities and work outcome in patients with mental disorders: multicentre study.
Chika Sumiyoshi, Kazutaka Ohi, Haruo Fujino, Hidenaga Yamamori, Michiko Fujimoto, Tomiki Sumiyoshi

BJPsych Open· June 2022

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Sex Differences in Social Cognition and Association of Social Cognition and Neurocognition in Early Course Schizophrenia.
Ryotaro Kubota, Ryo Okubo, Satoru Ikezawa, Makoto Matsui, Leona Adachi, Chika Sumiyoshi, Tomiki Sumiyoshi

Front Psychol· April 2022

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Facilitative Effects of Transcranial Direct Current Stimulation on Semantic Memory Examined by Text-Mining Analysis in Patients With Schizophrenia.
Chika Sumiyoshi, Zui Narita, Takuma Inagawa, Yuji Yamada, Kazuki Sueyoshi, Tomiki Sumiyoshi

Front Neurol· February 2021

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A 1.5-Year Longitudinal Study of Social Activity in Patients With Schizophrenia.
Kazutaka Ohi, Chika Sumiyoshi, Haruo Fujino, Yuka Yasuda, Hidenaga Yamamori, Tomiki Sumiyoshi

Front Psychiatry· August 2019

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Predicting work outcome in patients with schizophrenia: Influence of IQ decline.
Chika Sumiyoshi, Haruo Fujino, Hidenaga Yamamori, Noriko Kudo, Hirotsugu Azechi, Tomiki Sumiyoshi

Schizophr Res· November 2018

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Genetic Overlap between General Cognitive Function and Schizophrenia: A Review of Cognitive GWASs.
Kazutaka Ohi, Chika Sumiyoshi, Haruo Fujino, Yuka Yasuda, Hidenaga Yamamori, Tomiki Sumiyoshi

Int J Mol Sci· November 2018

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Semantic Memory Organization in Japanese Patients With Schizophrenia Examined With Category Fluency.
Chika Sumiyoshi, Haruo Fujino, Tomiki Sumiyoshi, Yuka Yasuda, Hidenaga Yamamori

Front Psychiatry· March 2018

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A Brief Assessment of Intelligence Decline in Schizophrenia As Represented by the Difference between Current and Premorbid Intellectual Quotient.
Kazutaka Ohi, Chika Sumiyoshi, Haruo Fujino, Yuka Yasuda, Hidenaga Yamamori, Tomiki Sumiyoshi

Front Psychiatry· December 2017

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Estimated cognitive decline in patients with schizophrenia: A multicenter study.
Haruo Fujino, Chika Sumiyoshi, Yuka Yasuda, Hidenaga Yamamori, Michiko Fujimoto, Tomiki Sumiyoshi

Psychiatry Clin Neurosci· May 2017

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Usefulness of the Wechsler Intelligence Scale short form for assessing functional outcomes in patients with schizophrenia.
Chika Sumiyoshi, Haruo Fujino, Tomiki Sumiyoshi, Yuka Yasuda, Hidenaga Yamamori

Psychiatry Res· November 2016

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Predicting employment status and subjective quality of life in patients with schizophrenia.
Haruo Fujino, Chika Sumiyoshi, Tomiki Sumiyoshi, Yuka Yasuda, Hidenaga Yamamori

Schizophr Res Cogn· March 2016

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Factors predicting work outcome in Japanese patients with schizophrenia: role of multiple functioning levels.
Chika Sumiyoshi, Philip D Harvey, Manabu Takaki, Yuko Okahisa, Taku Sato, Tomiki Sumiyoshi

Schizophr Res Cogn· September 2015

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Utility of the UCSD Performance-based Skills Assessment-Brief Japanese version: discriminative ability and relation to neurocognition.
Chika Sumiyoshi, Manbu Takaki, Yuko Okahisa, Thomas L Patterson, Philip D Harvey, Tomiki Sumiyoshi

Schizophr Res Cogn· September 2014

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Performance on the Wechsler Adult Intelligence Scale-III in Japanese patients with schizophrenia.
Haruo Fujino, Chika Sumiyoshi, Tomiki Sumiyoshi, Yuka Yasuda, Hidenaga Yamamori

Psychiatry Clin Neurosci· July 2014

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Language-dependent performance on the letter fluency task in patients with schizophrenia.
Chika Sumiyoshi, Aygun Ertugrul, A Elif Anil Yağcıoğlu, Ajanta Roy, Karu Jayathilake, Tomiki Sumiyoshi

Schizophr Res· February 2014

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Development of brief versions of the Wechsler Intelligence Scale for schizophrenia: considerations of the structure and predictability of intelligence.
Chika Sumiyoshi, Miki Uetsuki, Motomu Suga, Kiyoto Kasai, Tomiki Sumiyoshi

Psychiatry Res· December 2013

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[Functional outcome in schizophrenia: relation to the MATRICS consensus cognitive battery].
Chika Sumiyoshi

Nihon Shinkei Seishin Yakurigaku Zasshi· November 2011

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Impaired ability to organize information in individuals with autism spectrum disorders and their siblings.
Chika Sumiyoshi, Yuki Kawakubo, Motomu Suga, Tomiki Sumiyoshi, Kiyoto Kasai

Neurosci Res· March 2011

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Effect of perospirone on P300 electrophysiological activity and social cognition in schizophrenia: a three-dimensional analysis with sloreta.
Tomiki Sumiyoshi, Yuko Higuchi, Toru Itoh, Mie Matsui, Hirofumi Arai, Chika Sumiyoshi

Psychiatry Res· June 2009

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