Lee Christopher, Fernandes Myra A
Department of Psychology, University of Waterloo, 200 University Ave. West, Waterloo, ON N2L 3G1, Canada.
Brain Sci. 2017 Dec 27;8(1):6. doi: 10.3390/brainsci8010006.
We investigated whether anxious individuals, who adopt an inherently negative mindset, demonstrate a particularly salient memory bias for words tainted by negative contexts. To this end, sequentially presented target words, overlayed onto negative or neutral pictures, were studied in separate blocks (within-subjects) using a deep or shallow encoding instruction (between-subjects). Following study, in Test 1, participants completed separate recognition test blocks for the words overlayed onto the negative and the neutral contexts. Following this, in Test 2, participants completed a recognition test for the foils from each Test 1 block. We found a significant three-way interaction on Test 2, such that individuals with high anxiety who initially studied target words using a shallow encoding instruction, demonstrated significantly elevated memory for foils that were contained within the negative Test 1 block. Results show that during retrieval (Test 1), participants re-entered the mode of processing (negative or neutral) engaged at encoding, tainting the encoding of foils with that same mode of processing. The findings suggest that individuals with high relative to low anxiety, adopt a particularly salient negative retrieval mode, and this creates a downstream bias in encoding and subsequent retrieval of otherwise neutral information.
我们研究了那些天生具有消极思维模式的焦虑个体,是否会对带有负面情境的词汇表现出特别显著的记忆偏差。为此,我们将叠加在负面或中性图片上的目标词依次呈现,让受试者在不同的组块中(组内设计)进行学习,同时采用深度或浅层编码指令(组间设计)。学习之后,在测试1中,参与者针对叠加在负面和中性情境上的词汇分别完成单独的识别测试组块。在此之后,在测试2中,参与者对每个测试1组块中的干扰项完成一次识别测试。我们在测试2中发现了一个显著的三因素交互作用,即那些最初使用浅层编码指令学习目标词的高焦虑个体,对包含在负面测试1组块中的干扰项表现出显著提高的记忆。结果表明,在检索过程中(测试1),参与者重新进入了编码时所采用的加工模式(负面或中性),使干扰项的编码也受到同样加工模式的影响。研究结果表明,与低焦虑个体相比,高焦虑个体采用了一种特别显著的负面检索模式,这在编码以及随后对原本中性信息的检索过程中产生了一种下游偏差。