Education 【 display / non-display 】

Education 【 display / non-display 】

• 2013

  -

  2017

  Sapporo Medical University   Graduate School of Medicine  

• 2011

  -

  2013

  Sapporo Medical University   Graduate School of Health Sciences  

• 2007

  -

  2011

  Sapporo Medical University   School of Health Sciences   Department of Occupational Therapy  

Degree 【 display / non-display 】

Degree 【 display / non-display 】

• Sapporo Medical University   Doctor of Philosophy

Research Experience 【 display / non-display 】

Research Experience 【 display / non-display 】

• 2014.11

  -

  Now

  Sapporo Medical University   School of Health Sciences, Department of Occupational Therapy  

• 2011.05

  -

  2014.10

  札幌医科大学附属病院 リハビリテーション部   非常勤職員（作業療法士）

Professional Memberships 【 display / non-display 】

Professional Memberships 【 display / non-display 】

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  北海道作業療法士会

• 　

  　

  　

  JAPANESE ASSOCIATION OF OCCUPATIONAL THERAPISTS

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  JAPAN BIOMAGNETISM AND BIOELECTROMAGNETICS SOCIETY

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  JAPANESE SOCIETY OF CLINICAL NEUROPHYSIOLOGY

• 　

  　

  　

  日本老年療法学会

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Research Areas 【 display / non-display 】

Research Areas 【 display / non-display 】

• Life sciences   Rehabilitation science  

• Life sciences   Neuroscience - general  

Affiliation 【 display / non-display 】

Affiliation 【 display / non-display 】

• Sapporo Medical University   School of Health SciencesDepartment of Occupational Therapy  

Research Interests 【 display / non-display 】

Research Interests 【 display / non-display 】

• 脳磁図

• 作業療法

• 神経科学

• リハビリテーション

Papers 【 display / non-display 】

Papers 【 display / non-display 】

• Appraisal of definition of baseline length for somatosensory evoked magnetic fields.

  Hidekazu Saito, Shogo Yazawa, Jun Shinozaki, Takashi Murahara, Hideaki Shiraishi, Masao Matsuhashi, Takashi Nagamine

  Journal of neuroscience methods   359   109213 - 109213  2021.05  [Refereed]  [International journal]

  Authorship：   Lead author

  　View Summary

  BACKGROUND: The baseline (BL) segment in the prestimulus period is generally assigned as a reference of evoked activities. However, an experimenter empirically defines its length in each condition. So far, the criterion for the length of a BL segment has not been established. NEW METHOD: We evaluated the effect of the length of the BL segment by recording somatosensory evoked magnetic fields (SEFs) under fixed stimulus onset asynchrony (SOA). For the evaluation of the length of the BL segment in the prestimulus period, five proportions in relation to SOA were used as the BL segment. In addition, we adopted other two types of BL segment which were the single data point measured from the value of stimulus onset (BL0) and the mean value of the whole raw data throughout the recording (DC mean). We investigated the influence of the BL segments on SEFs by utilizing two indicators: normalized N20 m amplitudes and estimated locations of corresponding equivalent current dipoles (ECDs). RESULTS: Both indicators did not show any significant differences, based on the factor of BL segments, in any SOA conditions. COMPARISON WITH EXISTING METHOD: The BL0 had by far the largest variation in the ECD locations.Therefore, utilizing stimulus onset as the BL segment should be avoided. In addition, considering that other BL segments provided comparable values by the two indicators, the DC mean can reasonably be adopted. CONCLUSIONS: We suggest that utilizing the DC mean could be employed as the BL segment.

  DOI PubMed

• Does 20 Hz Transcranial Alternating Current Stimulation over the Human Primary Motor Cortex Modulate Beta Rebound Following Voluntary Movement?

  Mayu Akaiwa, Yuya Matsuda, Ryo Kurokawa, Yasushi Sugawara, Rin Kosuge, Hidekazu Saito, Eriko Shibata, Takeshi Sasaki, Kazuhiro Sugawara, Naoki Kozuka

  Brain sciences   14 ( 1 )  2024.01  [International journal]

  　View Summary

  Beta frequency oscillations originating from the primary motor cortex increase in amplitude following the initiation of voluntary movement, a process termed beta rebound. The strength of beta rebound has been reported to predict the recovery of motor function following stroke, suggesting therapeutic applications of beta rebound modulation. The present study examined the effect of 20 Hz transcranial alternating current stimulation (tACS) on the beta rebound induced by self-paced voluntary movement. Electroencephalograms (EEGs) and electromyograms (EMGs) were recorded from 16 healthy adults during voluntary movements performed before and after active or sham tACS. There was no significant change in average beta rebound after active tACS. However, the beta rebound amplitude was significantly enhanced in a subset of participants, and the magnitude of the increase across all participants was negatively correlated with the difference between individual peak beta frequency and tACS frequency. Thus, matching the stimulus frequency of tACS with individual beta frequency may facilitate therapeutic enhancement for motor rehabilitation.

  DOI PubMed

• Event-Related Brain Potentials N140 and P300 during Somatosensory Go/NoGo Tasks Are Modulated by Movement Preparation.

  Yuya Matsuda, Yasushi Sugawara, Mayu Akaiwa, Hidekazu Saito, Eriko Shibata, Takeshi Sasaki, Kazuhiro Sugawara

  Brain sciences   14 ( 1 )  2023.12  [International journal]

  　View Summary

  The Go/NoGo task requires attention and sensory processing to distinguish a motor action cue or 'Go stimulus' from a 'NoGo stimulus' requiring no action, as well as motor preparation for a rapid Go stimulus response. The neural activity mediating these response phases can be examined non-invasively by measuring specific event-related brain potentials (ERPs) using electroencephalography. However, it is critical to determine how different task conditions, such as the relationship between attention site and movement site, influence ERPs and task performance. In this study, we compared attention-associated ERP components N140 and P300, the performance metrics reaction time (RT) and accuracy (%Error) and movement-related cortical potentials (MRCPs) between Go/NoGo task trials in which attention target and movement site were the same (right index finger movement in response to right index finger stimulation) or different (right index finger movement in response to fifth finger stimulation). In other Count trials, participants kept a running count of target stimuli presented but did not initiate a motor response. The N140 amplitudes at electrode site Cz were significantly larger in Movement trials than in Count trials regardless of the stimulation site-movement site condition. In contrast, the P300 amplitude at Cz was significantly smaller in Movement trials than in Count trials. The temporal windows of N140 and P300 overlapped with the MRCP. This superposition may influence N140 and P300 through summation, possibly independent of changes in attentional allocation.

  DOI PubMed

• Low blood concentration of alcohol enhances activity related to stopping failure in the right inferior frontal cortex

  Jun Shinozaki, Hiroshi Matsumoto, Hidekazu Saito, Takashi Murahara, Hiroshi Nagahama, Yuuki Sakurai, Takashi Nagamine

  ( Cold Spring Harbor Laboratory )   2023.12

  　View Summary

  ABSTRACT This study investigated the effects of low doses of alcohol, which are acceptable for driving a car, on inhibitory control and neural processing using the stop-signal task (SST) in 17 healthy right-handed social drinkers. The study employed simultaneous functional magnetic resonance imaging and electromyography (EMG) recordings to assess behavioural and neural responses under conditions of low-dose alcohol (breath-alcohol concentration of 0.15 mg/L) and placebo. The results demonstrated that even a small amount of alcohol consumption prolonged Go reaction times in the SST and modified stopping behaviour, as evidenced by a decrease in the frequency and magnitude of partial response EMG that did not result in button pressing during successful inhibitory control. Furthermore, alcohol intake enhanced neural activity during failed inhibitory responses in the right inferior frontal cortex, suggesting its potential role in behavioural adaptation following stop-signal failure. These findings suggest that even low levels of alcohol consumption within legal driving limits can greatly impact both the cognitive performance and brain activity involved in inhibiting responses. This research provides important evidence on the neurobehavioural effects of low-dose alcohol consumption, with implications for understanding the biological basis of impaired motor control and decision-making and potentially informing legal guidelines on alcohol consumption.

  DOI

• 脳卒中ドライバーのスクリーニング評価日本版(J-SDSA)における健常高齢者の成績特性および,運転に関する自記式調査との関連性についての検討

  勝浦 駿平, 齊藤 秀和, 太田 久晶

  日本安全運転医療学会誌 ( 日本安全運転医療学会 )  3 ( 1 ) 49 - 58  2023.07

  　View Summary

  【背景】運転技能に関する認知機能評価の一つである「脳卒中ドライバーのスクリーニング評価日本版」(J-SDSA)について,健常高齢者における成績特性を詳細に検討した報告はない.そこで,本研究では,健常高齢者群におけるJ-SDSAの成績特性を明らかにした上で,本課題成績と運転に関する自記式調査との関連性を検討した.【方法】参加者は,本邦の運転免許を保有する,60歳から77歳までの健常高齢者80名であった.参加者に対しJ-SDSAを実施し,課題成績を集計した.さらに,筆者らが作成した,運転に関する自記式調査票により,参加者の運転経験,事故・違反・ヒヤリハット歴,運転技能の自己評価についての情報を収集し,J-SDSAの課題成績との関連性を分析した.【結果】健常高齢者におけるJ-SDSAの課題成績は,健常若年者群のそれよりも低く,原著版SDSAの健常高齢者群よりも良好な成績であった.4名の参加者は,合否判定の予測式により不合格と判定された.本課題成績は,参加者の事故・違反・ヒヤリハット件数とは関連しないが,走行距離及び,安全運転に関する自己評価と関連することが明らかとなった.【結論】J-SDSAにおける健常高齢者の成績特性を示した.本研究結果は,同年代の脳損傷者に対し本課題を実施した際に,正常範囲のデータとして参照可能と考える.(著者抄録)

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Misc 【 display / non-display 】

Misc 【 display / non-display 】

• 脳卒中ドライバーのスクリーニング評価日本版(J-SDSA)における健常高齢者の成績と原著版の健常高齢者データ改訂版の差異

  勝浦 駿平, 齊藤 秀和, 太田 久晶

  日本神経心理学会総会プログラム・予稿集 ( 日本神経心理学会 )  46回   95 - 95  2022.08

• 脳卒中ドライバーのスクリーニング評価日本版(J-SDSA)の道路標識課題における健常高齢者の成績特性

  勝浦 駿平, 齊藤 秀和, 太田 久晶

  高次脳機能研究 ( (一社)日本高次脳機能障害学会 )  42 ( 1 ) 65 - 66  2022.03

• 体性感覚刺激を用いたOddball課題中のN140は運動によって変調する

  松田裕弥, 菅原靖, 赤岩眞悠, 齊藤秀和, 柴田恵理子, 佐々木健史, 菅原和広

  基礎理学療法学(Web)   25 ( Supplement )  2022

  J-GLOBAL

• 電流源推定に使用するMEGセンサーの選択範囲による影響に関する検討

  齊藤 秀和, 菅原 和広, 臼井 桂子, 篠崎 淳, 石黒 雅敬, 白石 秀明, 松橋 眞生, 長峯 隆

  日本生体磁気学会誌 ( 日本生体磁気学会 )  35 ( 1 ) 94 - 95  2022

• 生体磁気計測関係のアーチファクト MEG計測において歯科矯正器具によるArtifactを認めた一例

  齊藤 秀和, 菅原 和広, 臼井 桂子, 篠崎 淳, 石黒 雅敬, 白石 秀明, 松橋 眞生, 長峯 隆

  日本生体磁気学会誌 ( 日本生体磁気学会 )  35 ( 1 ) 48 - 49  2022

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Research Projects 【 display / non-display 】

Research Projects 【 display / non-display 】

• An objective assessment method of conversation to predict depression and cognitive decline in older adults with social frailty

  Grant-in-Aid for Scientific Research (C)

  Project Year :

  2024.04

  -

  2028.03

   

  横山 和樹, 池田 望, 井平 光, 齊藤 秀和

  Authorship： Coinvestigator(s)

• 随意運動に知覚変動の神経基盤解明と知覚コントロールを目指した運動プログラムの構築

  基盤研究(C)

  Project Year :

  2024.04

  -

  2028.03

   

  佐々木 健史, 菅原 和広, 齊藤 秀和

  Authorship： Coinvestigator(s)

• 脳損傷者の運転再開状況及び移動手段の実態とその内省に関する質問紙調査

  Project Year :

  2023.04

  -

  2024.03

   

  勝浦駿平, 太田久晶, 齊藤秀和, 飯田滉大

  Authorship： Coinvestigator(s)

• 随意運動が疼痛抑制を生じさせる神経メカニズムの時空間的解析

  基盤研究(C)

  Project Year :

  2022.04

  -

  2025.03

   

  菅原 和広, 澤村大輔, 齊藤秀和

  Authorship： Coinvestigator(s)

• 経頭蓋直流電気刺激を用いた運動感覚に対する新たなリハビリテーション開発

  Project Year :

  2022.04

  -

  2023.03

   

  黒川凌, 小塚直樹, 菅原和広, 佐々木健史, 齊藤秀和

  Authorship： Coinvestigator(s)

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Presentations 【 display / non-display 】

Presentations 【 display / non-display 】

• A survey on the awareness of driving behavior of parsons with brain damage who have resumed driving and the measures they take to resume driving

  Shunpei Katsuura, Hidekazu Saito, Hisaaki Ota

  The 8th Asia Pacific Occupational Therapy Congress 2024 (APOTC 2024) 

  Presentation date： 2024.11

  Event date：

  2024.11

  　

  　

• How many types of the assessment battery for the upper limb function were utilized for Occupational Therapy and why?

  Hidekazu Saito, Kazuki Yokoyama, Shunpei Katsuura, Hisaaki Ota

  The 8th Asia Pacific Occupational Therapy Congress 2024 (APOTC 2024) 

  Presentation date： 2024.11

  Event date：

  2024.11

  　

  　

• The effect of prism adaptation and its frequency of the reaching

  Toshiki Takeuchi, Hidekazu Saito, Hisaaki Ota

  The 8th Asia Pacific Occupational Therapy Congress 2024 (APOTC 2024) 

  Presentation date： 2024.11

  Event date：

  2024.11

  　

  　

• Occupational therapy experience for a person with bilateral upper limb paralysis due to cerebral ischemia-reperfusion injury: a retrospective study of the relationship between functional improvement of paralyzed limbs and brain imaging findings

  Akihiro Iida, Naoya Yama, Masaki Saitoh, Midori Yamano, Hidekazu Saito, Shunpei Katsuura, Toshiki Takeuchi, Hisaaki Ota

  The 8th Asia Pacific Occupational Therapy Congress 2024 (APOTC 2024) 

  Presentation date： 2024.11

  Event date：

  2024.11

  　

  　

• Validity and reliability study of an electronic version of line bisection task

  Hisaaki Ota, Hirofumi Sanada, Toshiki Takeuchi, Megumi Takezawa, Hidekazu Saito, Shunpei Katsuura, Akihiro Iida

  The 8th Asia Pacific Occupational Therapy Congress 2024 (APOTC 2024) 

  Presentation date： 2024.11

  Event date：

  2024.11

  　

  　

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Committee Memberships 【 display / non-display 】

Committee Memberships 【 display / non-display 】

• 2024.07

  -

  Now

    実行委員長

• 2023.03

  -

  2024.08

    運営部部長

• 2021.08

  -

  2022.06

    プログラム委員・実行委員

• 2019.01

  -

  2019.06

    運営委員

• 2018.10

  -

  2020.03

    第50回北海道作業療法学会学術大会・第8回北海道作業療法士会研修大会 会場進行部 部長

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Social Activities 【 display / non-display 】

Social Activities 【 display / non-display 】

• 令和6年度北海道サービス管理責任者等研修