A study of the neural mechanism of attention : Multidimensional biological signal analysis of simultaneously measured fixation eye movements, NIRS, and EEG

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420401
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Measurement engineering
• Research Institution: Kindai University
• Principal Investigator: KOHAMA Takeshi 近畿大学, 生物理工学部, 准教授 (90295577)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 視覚的注意 / 固視微動 / 近赤外分光法（NIRS） / 独立成分分析 / ドリフト眼球運動 / マイクロサッカード / 多次元生体信号解析 / 視覚認知

Outline of Final Research Achievements

The purpose of this study is to elucidate the information processing mechanism in visual attention system of brain. We analyzed involuntary fixation eye movements to quantify the degree of focal attention, and near-infrared spectroscopy (NIRS) signal to establish an objective monitoring method of the attention control system. As results from the experiments conducted in this study, we obtained a signal processing technique for extracting microsaccades with high accuracy and a mathematical model necessary for drift eye movement analysis. Moreover, we constituted experiment conditions suitable for brain function measurement by NIRS and its signal processing methods to avoid various artifacts. These results suggest that measurement techniques to elucidate the neural mechanism of attention were confirmed.

Free Research Field

神経情報学（視覚認知システム）