Characteristics of Item Recognition Performance of Subjective Contours

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  • 主観的輪郭の記憶-再認特性に関する実験的検討
  • シュカンテキ リンカク ノ キオク-サイニン トクセイ ニ カンスル ジッケンテキ ケントウ

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Abstract

To expand the screen area, it is effective to use the optical illusion phenomenon that multiplies information with a sense of depth. In this study, the characteristics of recognition performance to perceive subjective contours as objects that present information to humans were examined by using item recognition task. From the results of the experiment, it was observed that as the number of presented figures increased, the reaction time became longer and the percentage correctness deteriorated in all the induction methods. In particular, when the incompletion figure method was used to induce the subjective contour, the percentage correctness worsened when there were two or more presented figures, and the detection time (regression coefficient) became longer significantly when compared with other induction methods. In addition, when the presented subjective contour was perceived brighter than other subjective contours, the recognition performance deteriorated, because the detection of multiplexing of the subjective surface takes more time when compared with other induction methods. It is suggested that the optimal way to design an object for using the incompletion figure method is to importantly cater for the reduction of the subjective brightness contrast.

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