Early detection of motor intension by efficient decoding of electroencephalogram on the parietal lobe

2015 Fiscal Year Final Research Report

• Project/Area Number: 26540102
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Human interface and interaction
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: Tanaka Toshihisa 東京農工大学, 工学(系)研究科(研究院), 准教授 (70360584)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 脳神経科学 / ブレインマシンインタフェース / 脳 / 運動 / 信号処理

Outline of Final Research Achievements

Posterior parietal cortex (PPC) is considered related to the formation of intention. The intention specifies the goal of a movement and the type of a movement. It has been reported that EEG signals extracted from PPC can be used to decode intended movement direction before actual movement. However, visual cue was used for users in the experiment. It is not clear whether the extracted EEG signals were related to intentions. In this study, we conducted not only an experiment with visual cue but also an experiment with tactile cue. EEG components that could be related to PPC were extracted by using independent component analysis. Event-related potential (ERP) waveforms were observed in the experiment with visual cue. On the other hand, ERP waveforms obtained in the experiment with tactile cue were totally different from the one with visual cue. These results suggest that VEP was included in the EEG signals extracted from PPC in the experiment with visual cue.

Free Research Field

信号処理工学