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Papers - KITA, Yosuke

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多言語環境児における発達性ディスレクシアの評価と診断:日本語−英語バイリンガル症例のケースシリーズ研究

奥村安寿子, 加賀佳美, 稲垣真澄, 北洋輔

脳と発達 ((一社)日本小児神経学会) in press ( 2 ) 111 - 117 2021

Accepted, ISSN 0029-0831

【目的】多言語環境にある小児の読み書き困難は、学習機会の少なさといった環境要因が原因とされやすいが、発達性読み書き障害や知的能力障害などに基づく場合もある。本研究では、日本語-英語のバイリンガル症例に両言語による基礎的な読み書き評価を適用し、多言語環境児における発達性読み書き障害の評価・診断のあり方を検討した。【方法】読み書きの困難を主訴として医療機関を受診した、日本語-英語バイリンガル児4名に標準化知能検査、英語の口頭言語能力評価、および両言語の基礎的な読み書き検査を実施し、DSM-5による限局性学習症の読字・書字表出困難の診断を行った。【結果】全般的な知的発達水準と口頭言語能力は、全例で正常範囲内にあった。日本語の読み書き検査では、症例1、3、4がひらがな読字から、症例2が漢字で困難を示した。学校言語が英語の2名では、アルファベットの呼称(症例3)と英語の文章音読(症例3、4)にも重篤な困難が認められた。これらより、症例1、3、4は読字および書字表出、症例2は書字表出に特異的な困難がある発達性読み書き障害と診断された。【結論】文字や単語の基礎的な読み書き検査は、多言語環境児の診断的評価に有用であった。複数言語での評価は実施面の課題が多いが、中核症状である正確性・流暢性低下、および言語歴や学習時間等との乖離の把握により、環境要因では説明しがたい生得的な限局性学習症を特定できる。(著者抄録)

Selection of screening items for stuttering: A preliminary study

Yuki Hara, Mari Higashikawa, Wakana Hata, Yuri Sasaki, Takeshi Murakami, Yoko Mizuto, Yosuke Kita, Ikuyo Ishizaka

The Kitasato Medical Journal 2020.10

Accepted

Adaptive behavior and its related factors in children with focal epilepsy.

Riyo Ueda, Yoshimi Kaga, Yosuke Kita, Masaki Iwasaki, Eri Takeshita, Yuko Shimizu-Motohashi, Akihiko Ishiyama, Takashi Saito, Eiji Nakagawa, Kenji Sugai, Masayuki Sasaki, Masumi Inagaki

Epilepsy & behavior : E&B 108 107092 - 107092 2020.07

Accepted

OBJECTIVE: We aimed to clarify the strengths and weaknesses in adaptive behavior in children with focal epilepsy and show children-associated factors related to adaptive behavior. MATERIALS AND METHODS: Sixty-three children with focal epilepsy aged 5-18 years with intellectual quotient (IQ) ranging from 67 to 135 were enrolled in this study. Adaptive behavior was evaluated using the Vineland Adaptive Behavior Scale, 2nd edition (VABS-II). The children performed continuous performance test and tests of reading, writing, and IQ; parents answered questionnaires regarding attention-deficit hyperactivity disorder and autism spectrum disorder (ASD). Participants were categorized into four groups based on IQ and adaptive behavior scores for statistical comparisons. RESULTS AND DISCUSSION: Children with low adaptive behavior were more likely to show a reduction in daily living skills, and those with both low adaptive behavior and IQ were more likely to show a reduction in daily living skills and communication. Lower adaptive behavior was related to more severe autistic symptoms, lower academic achievement in children with IQ > 85, and lower executive function in children with IQ ≤ 85. There was a qualitative difference of cognitive dysfunction in adaptive behavior between both groups. CONCLUSIONS: There were differences in VABS-II domain and subdomain characteristics between children with focal epilepsy and those with ASD; however, it was more difficult for children with more severe ASD and coexisting focal epilepsy to show age-equivalent adaptive behavior.

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Executive dysfunction in medication-naïve children with ADHD: A multi-modal fNIRS and EEG study

Yoshimi Kaga, Riyo Ueda, Miho Tanaka, Yosuke Kita, Kota Suzuki, Yasuko Okumura, Yuka Egashira, Yuka Shirakawa, Shota Mitsuhashi, Yuzuki Kitamura, Eiji Nakagawa, Yushiro Yamashita, Masumi Inagaki

Brain and Development (Elsevier BV) 42 ( 8 ) 555 - 563 2020.06

Accepted, ISSN 0387-7604

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Circadian rhythm at age 3-4 months is associated with risk of autism spectrum disorder

Kyoko Hoshino, Yuri Nagao, Kazue Kimura, Masaharu Hayashi, Yosuke Kita

日本小児科学会雑誌 124 ( 5 ) 819 - 824 2020.05

Accepted

Reduced Nogo-P3 in adults with developmental coordination disorder (DCD).

Kota Suzuki, Yosuke Kita, Yuka Shirakawa, Yuka Egashira, Shota Mitsuhashi, Yuzuki Kitamura, Hideyuki Okuzumi, Yoshimi Kaga, Masumi Inagaki

International journal of psychophysiology : official journal of the International Organization of Psychophysiology 153 37 - 44 2020.04

Accepted

Nogo-N2 is associated with the premotor cognitive process that precedes motor response (e.g., conflict monitoring), whereas Nogo-P3 is related to the inhibition of the actual motor response. We examined the influence of motor clumsiness of developmental coordination disorder (DCD) on components of the event-related potential in a Go/Nogo task. Participants were healthy adults (N = 81) that were classified into control and DCD groups based on the Movement Assessment Battery for Children Second Edition. We manipulated the difficulty in stopping a response by varying the frequency of Nogo stimuli in a response task into rare (20%) and frequent (80%) conditions, and Nogo-N2 and Nogo-P3 were calculated from electroencephalograms (EEGs) during the Go/Nogo tasks. The commission error rate in the rare condition was significantly higher in the DCD group than in the control group, indicating that motor clumsiness decreases task performance. There were no differences in Nogo-N2 between DCD and control groups. However, Nogo-P3 in the rare condition was reduced in the DCD group compared to the control group. These results suggest that the influence of motor clumsiness is limited to the cognitive process after the initiation of the actual motor response.

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Discrepancy between musical ability and language skills in children with Williams syndrome.

Yuzuki Kitamura, Yosuke Kita, Yasuko Okumura, Yoshimi Kaga, Hideyuki Okuzumi, Yuji Ishikawa, Miho Nakamura, Masumi Inagaki

Brain & development 42 ( 3 ) 248 - 255 2020.01

Accepted

BACKGROUND: Children with Williams syndrome (WS) show a marked interest in music, a characteristic often explored in clinical settings. However, the actual musical abilities of patients with WS remain debatable due to some of the relevant data being derived from experimental tasks that require a verbal response, despite the known language impairments in WS. The present study aimed to examine musical ability in children with WS using a newly invented pitch discrimination task with minimal involvement of language and clarify its relationship with language skill. METHODS: Eleven children with WS participated in the study. We used a novel pitch discrimination task that required minimal language use. Two piano tones were presented sequentially, and children were asked to give a non-verbal response as to whether the second tone was higher than, lower than, or the same as the first tone. RESULTS: Pitch discrimination performance in children with WS was lower than the level predicted for their chronological age (CA), even in the non-verbal task. Pitch discrimination ability and verbal mental age (VMA) were shown to be dissociated, such that children with WS with a lower skill level for language showed an unexpectedly higher level of pitch discrimination ability and vice versa. CONCLUSIONS: Our results indicated reduced musical ability with respect to CA in children with WS. The dissociation between musical ability and language skills may indicate unique developmental relationships that differ from those in normal children. These findings provide new evidence to support the importance of assessing actual musical ability in WS prior to implementing interventional music therapy.

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Postoperative improvement of executive function and adaptive behavior in children with intractable epilepsy

Riyo Ueda, Yoshimi Kaga, Yosuke Kita, Miho Tanaka, Masaki Iwasaki, Eri Takeshita, Yuko Shimizu-Motohashi, Akihiko Ishiyama, Takashi Saito, Eiji Nakagawa, Kenji Sugai, Masayuki Sasaki, Takashi Okada, Masumi Inagaki

Brain and Development (Brain and Development) 43 ( 2 ) 280 - 287 2020

ISSN 0387-7604

© 2020 The Japanese Society of Child Neurology Introduction: An alteration in postoperative cognitive function varies according to the patients’ background characteristics, such as etiology, focus, and seizure duration. Accurate prediction and assessment of postoperative cognitive function is difficult in each patient. Adaptive behavior could describe the typical performance of daily activities and represents the ability to translate cognitive potential into real-world skills. We examined the relationship between alterations of executive function (EF) and adaptive behavior in school children undergoing surgery for intractable epilepsy. Methodology: We enrolled 31 children with focal resection or corpus callosotomy for intractable epilepsy [mean age at surgery, 12.5 years; 16 boys; mean intellectual quotient, 73.3]. We surveyed answered questionnaires on attention-deficit hyperactivity disorder (ADHD), autism spectrum disorder (ASD), and adaptive behavior using the Vineland Adaptive Behavior Scale, 2nd edition (VABS-II), and performed continuous performance tests (CPTs) on children pre- and postoperatively. Result: ADHD and ASD symptoms improved after epilepsy surgery. The omission error (OE) in the CPT variable improved after epilepsy surgery, especially in children with a shorter preoperative period. Improved ASD symptoms led to an increased score of the coping skills subdomain. The reduced OE observed after surgery also increased the score of the community skills subdomain. Conclusion: Improvement in EF and ASD symptoms resulted in better adaptive behavior postoperatively. These results were important for the pre- and postoperative evaluation and re-evaluation of children with epilepsy requiring special education and related services.

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The influence of motor skills on the choices of action in children with attention-deficit hyperactivity disorder

Kita Yosuke, Shirakawa Yuka, Suzuki Kota, Egashira Yuka, Kaga Yoshimi, Kitamura Yuzuki, Nishimura Yuki, Yamashita Yushiro, Inagaki Masumi

NO TO HATTATSU (The Japanese Society of Child Neurology) 52 ( 1 ) 5 - 10 2020

Accepted, ISSN 0029-0831

Objective: The present study investigated motor skills in children with attention-deficit hyperactivity disorder (ADHD) and its influence on their choices of action, which provided basic findings for prevention of unintentional injury in their living conditions. Methods: A case-control study was performed with 51 typically developing (TD) children and 35 children with ADHD. Their motor skills were evaluated by The Movement Assessment Battery for Children—Second Edition (MABC-2). We conducted an experimental task regarding the choices of action, in which the subjects were asked to pass through the rope by either stepping over or passing under it. We compared the scores of the MABC-2 and the performance in the experimental task among the subject groups, then identified the factors which would affect their choices of action. Results: Children with ADHD showed lower performance on their total MABC-2 score than did the TD children. In particular, their ball and gross motor skill performances were impaired compared with those of the TD children. In the experimental task, children with ADHD tried to pass under the rope set at a low height while the TD children stepped over the rope at the same level. The height of the rope that subjects chose to pass under was predicted by the attention performance of the subjects, but not by their motor skill performance. Conclusions: Japanese children with ADHD had impaired gross motor skills as well as difficulties in item-based motor skills. Moreover, their choices of action seemed inefficient, which was affected by severe inattention toward both the environment and their body schema. Thus, we should consider attention performance as well as motor skill performance in prevention of unintentional injuries.

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漢字熟語の逸脱検出時の脳磁場反応

江頭優佳, 加賀佳美, 軍司敦子, 北洋輔, 木村元洋, 廣永成人, 金子裕, 高橋秀俊, 花川隆, 稲垣真澄

日本生体磁気学会誌 (日本生体磁気学会) 33 ( 1 ) 164 - 166 2020

ISSN 0915-0374

就学前の発達性協調運動障害(DCD)早期発見のためのチェックリストと活用マニュアルの完成顕在化しにくい発達障害を早期に抽出するアセスメントツールの開発研究から

斉藤まなぶ, 北洋輔, 大里絢子, 三上美咲, 小枝周平, 三上珠希, 稲垣真澄, 中村和彦

日本児童青年精神医学会総会抄録集 ((一社)日本児童青年精神医学会) 60回 P14 - 3 2019.12

Accepted

Prevalence estimates of neurodevelopmental disorders in Japan: A community sample questionnaire study.

Yosuke Kita, Fumiko Ashizawa, Masumi Inagaki

Psychiatry and clinical neurosciences in press 2019.10

Accepted, ISSN 1323-1316

AIM: Prevalence estimates of neurodevelopmental disorders have been calculated by questionnaire surveys scored by a single rater, which introduces inherent rater biases. The present study aimed to estimate the prevalence and comorbidity rates of four neurodevelopmental disorders based on both parent and teacher rating scales. METHODS: We performed a community sample survey recruiting 3852 children aged 6 to 9 years. Parents and teachers evaluated clinical conditions in children using questionnaire-style scales. These scales with cut-off values were used to estimate the prevalence and comorbidity rates of attention deficit hyperactive disorder, autism spectrum disorder, specific learning disorder (or developmental dyslexia), and developmental coordination disorder. RESULTS: The prevalence estimates were separately confirmed according to the raters. Some estimates were higher than those in previous studies conducted in other countries. We also found a large disagreement between the parent and teacher rating scores. Moreover, the degree of agreement between two raters varied depending on the severity of the child's clinical condition. CONCLUSION: These estimates are the first findings based on evaluating children by two different raters. The prevalence and comorbidity estimates are informative for researchers and clinicians of pediatric neurology. The disagreements between two different raters raise questions about previous estimates of neurodevelopmental disorders.

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Effects of motor clumsiness on ERP components due to response inhibition

Suzuki Kota, Kita Yosuke, Shirakawa Yuka, Egashira Yuka, Kaga Yoshimi, Kitamura Yuzuki, Mitsuhashi Shota, Aragaki Kanako, Okuzumi Hideyuki, Inagaki Masumi

The Proceedings of the Annual Convention of the Japanese Psychological Association (The Japanese Psychological Association) 83 2A-050 - 2A-050 2019.09

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Is the motor skills checklist appropriate for assessing children in Japan?

Kita Y, Ashizawa F, Inagaki M

Brain & development 41 ( 6 ) 483 - 489 2019.06

Accepted, ISSN 0387-7604

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Predictive factors of success in neurofeedback training for children with ADHD

Yasuko Okumura, Yosuke Kita, Mikimasa Omori, Kota Suzuki, Akira Yasumura, Ayako Fukuda, Masumi Inagaki

DEVELOPMENTAL NEUROREHABILITATION (TAYLOR & FRANCIS INC) 22 ( 1 ) 3 - 12 2019.01

Accepted, ISSN 1751-8423

Introduction: Neurofeedback (NF) training aims the enhancement of self-regulation over brain activities. While it is largely recognized as an effective treatment for attention deficit hyperactivity disorder (ADHD), the existence of non-learners has also been reported. The present study explored pre-training assessment indices that could predict learners prior to NF training. Methods: Twenty-two children with ADHD participated in slow cortical potential (SCP) NF training and completed pre- and post-training assessments. Participants were classified into learners or non-learners based on their progress in the SCP regulation, and pre-training indices that differentiate the two groups were examined by decision tree analysis. Results and Discussion: The learner rate in NF training was 45.5%. Learners were predicted by pre-training cognitive and neurophysiological measures regarding Stroop tasks, which suggested relatively intact executive function as their characteristics. Given that NF training is not universally effective for children with ADHD, further studies are necessary to establish application criteria.

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Developmental changes in pitch discrimination ability during childhood

Yuzuki KITAMURA, Yosuke KITA, Yasuko OKUMURA, Masumi INAGAK, Hideyuki OKUZUMI, Yuji ISHIKAWA

Journal of Music Perception and Cognition (The Japanese Society for Music Perception and Cognition) 印刷中 ( 1 ) 3 - 12 2019

Accepted, ISSN 1342-856X

Pitch discrimination is the ability to distinguish differences in pitch and it is important for playing musical instruments and listening to music. However, owing to the limited verbal abilities of young children, not much is known about developmental changes in pitch discrimination during childhood. Therefore, the present study examined pitchdiscrimination abilities in preschool and early elementary school children using non-verbal responses. It was found that an ability to recognize the same pitch improved among preschoolers (4-5 years) and kindergarteners (5-6 years), while high-low pitch discrimination improved between first- and second-graders. In addition, musical experience improved pitchdiscrimination performance, but only among second-graders. These results suggest that the development of pitch discrimination during childhood involves both gradual natural acquisition and continuous musical experiences.

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発達性読み書き障害の早期発見に向けた行動観察項目の開発

北洋輔, 芦沢文子, 稲垣真澄

小児保健研究印刷中 2019

Accepted

漢字熟語認知における逸脱を反映する脳磁場反応

江頭優佳, 加賀佳美, 軍司敦子, 北洋輔, 木村元洋, 廣永成人, 金子裕, 高橋秀俊, 花川隆, 稲垣真澄

日本生体磁気学会誌 (日本生体磁気学会) 32 ( 1 ) 140 - 141 2019

ISSN 0915-0374

Assessing Learning Difficulties in a Child with Limited Japanese Proficiency : A Case Report of Academic-Skill and Cognitive Assessments in a Swedish-Speaking Girl

奥村安寿子, 北洋輔, 加賀佳美

コミュニケーション障害学 (日本コミュニケーション障害学会) 印刷中 ( 3 ) 99 - 112 2019

Accepted, ISSN 1347-8451

重症心身障害児者の嚥下時舌骨運動の特徴：健常成人との比較．

中村達也, 北洋輔, 藤本淳平, 甲斐智子, 稲田穣, 鮎澤浩一, 小沢浩

日本摂食嚥下リハビリテーション学会雑誌 22 ( 3 ) 205 - 213 2018.12

Accepted

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