Environmental context effects of background colors on recognition memory

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  • 再認記憶におよぼす背景色の環境的文脈効果
  • サイニン キオク ニ オヨボス ハイケイショク ノ カンキョウテキ ブンミャク コウカ

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Abstract

Three experiments examined whether or not switching study background-color contexts among target words at testing reduces word-recognition performance. These experiments also examined whether or not presentation rate -one of the determinants of item strength- interacted with background-color context. Undergraduates learned 40 target words presented at a rate of 1.5 or 3.0 seconds per word in one of two background-color contexts in Experiment 1, and in one of ten contexts in Experiments 2 and 3. Recognition of the targets was tested by mixing 40 distractor words with the targets immediately after the learning session in Experiments 1 and 2, and with a 5-minute filled retention interval in Experiment 3. Experiment 1 failed to find background-color context effects on recognition, but Experiments 2 and 3 successfully found the context effects. Presentation rate did not interact with the context effects. The results conflict with the ICE theory. The implications of the present findings are discussed.

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