Research on the perception-action cycle by electromagnetic physiological techniques

2015 Fiscal Year Final Research Report

• Project/Area Number: 25350609
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Rehabilitation science/Welfare engineering
• Research Institution: Aomori University of Health and Welfare
• Principal Investigator: Ozaki Isamu 青森県立保健大学, 健康科学部, 教授 (90241463)
• Co-Investigator(Renkei-kenkyūsha): IGUCHI Yoshinobu 公益財団法人東京都医学総合研究所認知症, 高次脳機能研究部分野, 研究員 (10342916) ; TAKINO Ryosuke 白梅学園大学, こども学科, 教授 (50197240) ; KIMURA Tomoaki 東京有明医療大学, 保健医療学部, 准教授 (50269289)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 神経科学 / 脳磁図 / 脳波 / 高周波信号 / 前頭連合野 / 呼吸 / 痛覚

Outline of Final Research Achievements

The prefrontal cortex is involved in the network of the perception-action cycle when we act in response to stimuli from environment. As a result of magnetoencephalographic analysis, when participants underwent a free choice task to choose attractive items among various kinds of commodities, during 0.5-1.5 seconds after picture presentation, the β - γ band high frequency signals increased in the left orbitofrontal cortex and subsequently in the anterior cingulate gyrus, supplementary motor area, and sensorimotor areas contralateral to the finger response. In the oddball paradigm comprising the same product images used in the free choice task, the response of the left orbitofrontal cortex was not found and only following activity was observed. Therefore, we suggest magnetoencephalogram makes it possible to visualize the feeling that we find certain product attractive or “cool” as the high-frequency activity of the left orbitofrontal cortex that precedes decision making of the choice.

Free Research Field

医歯薬学