知觉负荷对恐惧和中性分心面孔记忆的调节

The modulation effect of perception load on the facial distractor memory

采用视觉搜索任务,意外记忆再认任务调查编码阶段的知觉负荷对恐惧和中性分心面孔记忆的调节作用。结果发现:在视觉搜索任务中,高知觉负荷条件下的正确率显著低于低知觉负荷,反应时显著长于低知觉负荷条件;在意外记忆再认任务中,由于被试对新恐惧面孔的虚报率较高,造成中性分心面孔的记忆成绩显著高于恐惧面孔。可见,人们对恐惧面孔具有一定的反应偏向。

The present study investigates the effect of perceptual load on fearful and neutral memory using a visual search task and surprise memory recognition task. The results showed that： In the visual search task,the reaction time for high perceptual load condition was significant longer than for the low perceptual load condition,while the accuracy for high perceptual load was significant lower relative to the low perceptual load condition; In the recognition task,the memory score for the neutral distracter was significant higher than for the fearful distracter,which seems to driven by the higher false alarm for the new fearful face. These results suggest that there is a response bias for fearful faces.