食品画像を用いた画質評価と好み評価時の事象関連電位の比較

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  • Comparison of Event-Related Potential in Opinion Tests of Picture Quality and Preference with Food Pictures
  • ショクヒン ガゾウ オ モチイタ ガシツ ヒョウカ ト コノミ ヒョウカジ ノ ジショウ カンレン デンイ ノ ヒカク

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In order to study on event-related potential (ERP) in opinion tests of picture quality and food evaluation, the ERPs were measured at 14 electrode positions by the same evaluation method with the same picture, and the same subjects. The pictures of sushi were used. ERP waveform of opinion tests with stimulus-comparison and single-stimulus methods were compared. In result, the ERP waveform of picture quality test has one peak, and the waveform of food preference test has two peaks. The P300 amplitude in the cases of picture quality and food preference tests with stimulus-comparison method is different at Fz and F7. And there is no significant difference between P300 amplitudes of the cases with stimulus-comparison and single-stimulus methods in food preference test. These results indicate that a difference by evaluation method is small, and the content of the evaluation task such as picture quality or food preference is one of the causes.

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