<b>定型発達成人の不注意傾向と問題解決過程に関わる </b><b>前頭前皮質活動との関連 </b>  [in Japanese] <b>The Relationship Between Tendency for Inattention and Prefrontal Cortex Activity During Problem Solving in Typical Developing </b><b>Adults </b>  [in Japanese]

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Abstract

<p>不注意はプランニングの困難やワーキングメモリ容量の低さと強く関連する。本研究では成人を対象に、不注意傾向の強さと問題解決課題遂行時の行動成績と前頭前皮質活動との関連を検討した。問題解決課題にはマスターマインドを用い、課題遂行時の脳活動を近赤外線スペクトロスコピーによって計測した。最も難度が高い4 ピン条件にて、不注意低群よりも高群において達成時間の延長、正答率の低下がみられた。 低群では課題条件の難度の変化に関わらず、すべての領域において脳活動が同水準であったことから、前頭—頭頂ネットワーク全体が問題解決に関わる可能性が示唆された。高群では、4 ピン条件においてすべての領域においてoxy-Hb濃度変化量が減少した。これらの結果から、不注意傾向の高さがワーキングメモリにおける情報処理過程及び、特にそれに関わる内側前頭前皮質の活動に影響を与えていることが推測された。</p>

<p>Inattention is strongly associated with poor planning and low working memory capacity. The purpose of this study was to investigate the relationship between inattention score, behavioral performance during problem solving tasks, and prefrontal cortex activity in typical developing adults. The mastermind game was used as the problem solving task. For the investigation of brain activities, cerebral blood flow in the prefrontal cortex area was measured using near-infrared spectroscopy during the mastermind game. In terms of behavioral performance, longer completion times and lower accuracy were observed in the high-inattention score group compared with the low-inattention score group on 4 pin conditions where the difficulty level was highest. The hemodynamic changes in oxyhemoglobin (oxy-Hb) in the low-inattention score group were similar regardless of difficulty level in all analyzed areas. This indicated that the entire fronto-parietal network may be related to problem solving processes. In the high-inattention group, the hemodynamic changes in oxy-Hb decreased on 4 pin conditions where high-working memory was utilized. These results suggest that the tendency for high inattention influences the working memory process and medial PFC activities related to working memory.</p>

Journal

  • Japanese Journal of Disability Sciences

    Japanese Journal of Disability Sciences 41(1), 13-22, 2017

    Association of Disability Sciences, Japan

Codes

  • NII Article ID (NAID)
    130006147543
  • NII NACSIS-CAT ID (NCID)
    AA12215065
  • Text Lang
    JPN
  • Article Type
    departmental bulletin paper
  • Journal Type
    大学紀要
  • ISSN
    1881-5812
  • NDL Article ID
    028180197
  • NDL Call No.
    Z7-1307
  • Data Source
    NDL  IR  J-STAGE 
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