講演抄録/キーワード |
講演名 |
2011-07-09 11:15
注意の定量化 ~ 定常体性感覚誘発電位を用いた検討 ~ ○川口浩和・小林哲生(京大) MBE2011-34 |
抄録 |
(和) |
本稿では体性感覚モダリティに着目し,「注意」という精神状態を定常体性感覚誘発電位(steady-state somatosensory evoked potential; SSSEP)の変調量として定量的に捉える新たな手法を提案する.被験者に対して左右示指に特定の周波数で標識した機械振動刺激を与えると同時に左右中指にはパルス刺激を与え,片方の振動刺激に
注意を向けながらパルス刺激の回数を数えさせる実験を行った.狭帯域バンドパスフィルタと主成分分析により得られる主成分得点を用い,注意によりSSSEP が大きく変調する周波数が個人毎に異なる明らかにした. |
(英) |
This paper describes a newly developed quantitative measurement method of "attention" based on steady-state somatosensory evoked potentials (SSSEPs). To demonstrate the feasibility of the method, we carried out a task that subjects attend on the right or left index nger both of which frequency-tagged mechanical vibration stimuli were presented. In the task, the subjects are also instructed to count the number of pulsed mechanical
stimuli given to the middle nger of the attended hand. After applying a narrow band pass lter, principal component analysis (PCA) was used to extract principal components (PCs). Subsequently, time courses of powers of reconstructed PC scores were analyzed in each subject, it was found that powers of SSSEPs in attended conditions were larger than those of non-attended conditions. |
キーワード |
(和) |
注意 / 定常感覚刺激 / 定常体性感覚誘発電位(SSSEP) / / / / / |
(英) |
attention / steady-state sensory stimuli / steady-state somatosensory evoked potential (SSSEPs) / / / / / |
文献情報 |
信学技報, vol. 111, no. 121, MBE2011-34, pp. 77-80, 2011年7月. |
資料番号 |
MBE2011-34 |
発行日 |
2011-07-01 (MBE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
MBE2011-34 |