Recall of neutral words

The goal of the present study was to investigate whether exposing individuals with MDD to negative cues during the encoding stage would lead to deeper cognitive processing and improved memory retention of subsequent information. We hypothesized that in the MDD group, exposure to the negative prime cue would result in better recall of the subsequent word list compared to exposure to the positive prime cue. Furthermore, we predicted that the impact of the emotional prime cue on memory recall would be more pronounced when presented during the encoding stage compared to the retrieval stage. For the encoding condition, in the MDD group we found a significant difference indicating better word recalling for the negative compared to the positive video valance condition. In the HC group there was no significant difference between the two video valence conditions. For the retrieval condition, the results revealed no video valence X group interaction. Consistent with assumptions, individuals with MDD, but not HCs, showed enhanced word recall after exposure to negative, compared to positive, emotional stimuli during encoding. Notably, this effect was not observed when the emotional video was presented during the retrieval stage本研究旨在探究：向重性抑郁障碍（Major Depressive Disorder, MDD）患者在编码阶段呈现负性线索，是否可使其对后续信息产生更深层的认知加工，并提升记忆保持效果。本研究提出假设，相较于正性启动线索，负性启动线索的暴露可使MDD组被试对后续单词表的回忆成绩更优异；此外，本研究预测，与提取阶段相比，在编码阶段呈现情绪性启动线索时，其对记忆回忆的影响会更为显著。针对编码条件，MDD组的结果显示，负性视频效价条件下的单词回忆成绩显著优于正性视频效价条件；而健康对照（Healthy Control, HC）组在两种视频效价条件下均未出现显著差异。针对提取条件，结果未发现视频效价与组别间存在交互作用。与研究假设一致，仅MDD患者在编码阶段接触负性情绪刺激后，其单词回忆成绩相较于接触正性情绪刺激时得到显著提升，健康对照被试则未表现出该效应。值得注意的是，当情绪视频在提取阶段呈现时，并未观察到上述效应。