Irrelevant probe technique with the P300 elicited by electrical stimuli to the shoulders

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  • 事象関連電位―新しい時代に向けて―肩への電気刺激に対するＰ３００を指標とした無関連プローブ法の検討
  • 肩への電気刺激に対するP300を指標とした無関連プローブ法の検討
  • カタ エ ノ デンキ シゲキ ニ タイスル P300 オ シヒョウ ト シタ ムカンレン プローブホウ ノ ケントウ

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Abstract

This study examined whether an irrelevant probe technique, in which no response was required to probe stimuli, can evaluate the amount of attentional resources allocated to a computer game task. Eight undergraduate students performed a go-kart riding game while electrical probe stimuli were presented on their shoulders so as not to interfere with the game operation. The standard stimuli were presented with a probability of .80 to one shoulder and the deviant stimuli were presented on the other shoulder with a probability of .20. The amplitude of a late positive wave (P300) elicited by the deviant stimuli decreased while participants performed a difficult task compared to when the task was easy. The present study proposes a useful technique to evaluate mental workloads in complex everyday circumstances without interference with input of information and performance.

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