注意障害の臨床検査として新たに開発した二重課題(大磯二重課題B)の臨床的意義:脳外傷例での検討

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  • Clinical significance of a newly developed dual-task (Oiso dual-task B) for assessing inattention : analysis in patients with traumatic brain injury
  • チュウイ ショウガイ ノ リンショウ ケンサ ト シテ アラタ ニ カイハツ シタ ニジュウ カダイ(オオイソ ニジュウ カダイ B)ノ リンショウテキ イギ : ノウ ガイショウレイ デ ノ ケントウ

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<p>Background: Some patients with TBI (traumatic brain injury) might go on to manifest attentional deficit in the workplace although they performed well in standard neuro­psychological tests. We, therefore, developed an original paper-and-pencil type dual-task (Oiso DT-A) for assessing inattention. We showed that the Oiso DT-A might be valuable and sensitive for detecting inattention including mild deficit. The task, however, was not applicable for patients with the dominant-hand dysmobility because it included written calculation. The purpose of this study was to investigate the validity of newly developed DT (Oiso DT-B) which could be completed with the non-dominant hand.</p><p>Methods: A total of 134 healthy individuals and 36 TBI patients were the subjects. The Oiso DT-B combined visual­ly and audibly presented selective cancellation-tasks. A subject was required to identify and respond to both target stimuli of number 7 (visual sub-task) and words with three letters (auditory sub-task) for three minutes. The performance was scored based on the correct rate (both sub-tasks), success rate (both sub-tasks), and the number of correct answers in the visual sub-task. Performances of Clinical Assessment for Attention (CAT) developed by The Japan Society for Higher Brain Dysfunction and Kana pick-up test were also measured for TBI patients.</p><p>Results: All patients could complete Oiso DT-B without a difficulty. Based on a simple and unique definition of cut-off values, abnormal performance in TBI patients was detected more frequently in the Oiso DT-B than in any sub-task of CAT and Kana pick-up test although the specificity values were comparable.</p><p>Conclusion: The Oiso DT-B as well as DT-A also might be valuable and sensitive for detecting inattention including mild deficit.</p>

収録刊行物

  • 神経外傷

    神経外傷 39 (2), 103-111, 2016-12-26

    一般社団法人 日本脳神経外傷学会

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