When perceptual suppression induced by biased attention leads to errors: An elucidation of individual characteristics

Research Project

Project/Area Number	23500332
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Cognitive science
Research Institution	Osaka Prefecture University
Principal Investigator	ASADA Hiroshi 大阪府立大学, 高等教育推進機構, 准教授 (50151030)
Project Period (FY)	2011-04-28 – 2015-03-31
Project Status	Completed (Fiscal Year 2014)
Budget Amount *help	¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000) Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000) Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000) Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Keywords	Fmシータ / 注意の過集中 / ヒヤリハット / 知覚抑制 / ドライビングシミュレータ / 連続ウェーブレット変換 / Fmθ / 周辺視野知覚抑制 / 注意集中 / ヘッドマウントディスプレイ / 共分散構造分析 / 前頭部シータ波 / 注意配分の偏在 / ｳｪﾌﾞﾚｯﾄ時間周波数解析 / EEGLABMATLAB解析 / ヒヤリ・ハット行動 / wavelet解析 / 周辺視野情報認知 / Fmシータ脳波
Outline of Final Research Achievements	Achieving sustained focused attention of an individual on a task at hand has been important in various fields. However, excessive focused attention may cause perceptual suppression to other events, which in turn could lead to various near-miss incidences. The current study investigated the possibility that the frontal midline theta (Fm θ) activity associated with focused attention is also related to perceptual suppression that leads to errors. This experiment used a video game with English alphabet letters randomly presented around the screen one at a time. Statistically significant positive correlation was observed between the occurrence of Fm θ and the ratio of correctly recognized letters. Fm θ occurrence was negatively correlated with a greater self-reported frequency of near-miss incidences. However, an analysis of brain wave at 200-ms prior to an English letter presentation revealed no difference in Fm θ occurrence between correctly and incorrectly recognized letters.