Comparing time-based and event-based prospective memory over short delays

The current study compared monitoring in time- and event-based prospective memory (PM). Time- and event-based non-focal task instructions were given after a baseline block of a lexical decision ongoing task. Delay between instruction and presentation of PM cue/time was manipulated between-subjects to examine monitoring across short delays (1–6?min). Longer delays decreased performance in the event-based task, but not in the time-based task. This accuracy decline was accompanied by a decline in monitoring (as measured by PM cost to the ongoing task in the trials immediately before the PM cue was presented) between the 1 and 3?min delays. Monitoring was only evident for the time-based task at the 6?min delay as measured by PM cost to the ongoing task. Clock checks were also not affected by delay, but did increase in frequency as the response time neared. These results suggest that delay from the time of intention formation decreases both accuracy and monitoring in event-based tasks, but does not decrease accuracy or monitoring in time-based tasks.     

Measuring the flashbulb-like nature of memories for private events: the flashbulb memory checklist

What do we remember following an emotionally charged event? The assessment of memory characteristics for an emotional event represents one of the most challenging issues in the domain of autobiographical memory. Literature of flashbulb memories (FBMs) provides a crucial contribution on this issue: Following an emotional and unexpected public event, people remember not only central details of the episode, but also irrelevant, peripheral and idiosyncratic details of the reception context in which they learned of the news. The present study was set up to assess the factorial structure (samples 1 and 2) and convergent validity (sample 2) of an FBM checklist, an instrument designed to measure Flashbulb-like features of memories for emotional private events. Factorial analyses account for an oblique two-factor solution – FBM Specificity and Confidence – while correlational analyses support the convergent validity of this instrument. Practical implications are discussed, especially for the credibility assessment of witnesses of emotional events in forensic settings.     

Examining the factor structure of narrative meaning-making for stressful events and relations with psychological distress

This study examined the underlying factor structure of 15 narrative meaning-making indices for narratives of stressful events, and explored the incremental validity of the narrative factor solution over and above general personality traits in predicting various indices of psychological well-being. Two-hundred and twenty four undergraduates (M_age?=?19.2 years, SD_age?=?2.1; 114 males and 110 females; 67.6% Caucasian, 12.0% East Asian, 7.6% African-American, 4.0% South Asian, 2.2% Hispanic, and 6.7% as mixed or Other origin) wrote about the most traumatic experience in their life, and completed a series of psychological questionnaires. The narratives were coded in 15 ways theoretically derived from the narrative meaning-making literature. A series of exploratory structural equation models indicated that a four-factor solution best approximated the data. The four factors were: positive processing, negative processing, integrative meaning, and structure. All four factors related differentially to indices of well-being over and above traits. There appear to be four distinct, but related, factors of narrative meaning-making for memories of stressful events, which shed light on the nuanced relations with well-being.     

Hypercorrection of high-confidence errors in the classroom

People often have erroneous knowledge about the world that is firmly entrenched in memory and endorsed with high confidence. Although strong errors in memory would seem difficult to “un-learn,” evidence suggests that errors are more likely to be corrected through feedback when they are originally endorsed with high confidence compared to low confidence. This hypercorrection effect has been predominantly studied in laboratory settings with general knowledge (i.e., trivia) questions, however, and has not been systematically explored in authentic classroom contexts. In the current study, college students in an introductory horticulture class answered questions about the course content, rated their confidence in their answers, received feedback of the correct answers, and then later completed a posttest. Results revealed a significant hypercorrection effect, along with a tendency for students with higher prior knowledge of the material to express higher confidence in, and in turn more effective correction of, their error responses.     

Fluctuating confidence: the dynamic consequences of true/false affirmatives and denials on how a listener appraises their personal past

The present study examined the mnemonic consequences of true/false denials and affirmatives on how a listener appraises their personal past. To this end, participants (listeners) rated the extent to which they were confident certain events occurred during their childhood. They rated these events both before and after a confederate (speaker) denied or affirmed the occurrence of four different childhood events each, for a total of eight “rehearsed” events. For each set (denials and affirmatives) of events, half were true and half were false. In turn, this created four types of events (two each): true denials, true affirmatives, false denials, and false affirmatives. Additionally, half of the participants were told that the speaker was provided independent information about the veracity of the event’s occurrence (“expert” condition). Overall, listeners were less confident in the occurrence of false denial events, but more so when they believed the speaker to be more knowledgeable of the listeners memories, more confident in false affirmative events and, counter intuitively, more confident in the occurrence of true denial events. These results underscore the importance of a nuanced approach to the mnemonic consequences of true and false denials and affirmations in the course of social interactions.     

Stereotype Threat Effects on Learning From a Cognitively Demanding Mathematics Lesson

Stereotype threat—a situational context in which individuals are concerned about confirming a negative stereotype—is often shown to impact test performance, with one hypothesized mechanism being that cognitive resources are temporarily co‐opted by intrusive thoughts and worries, leading individuals to underperform despite high content knowledge and ability (see Schmader & Beilock, 2012 ). We test here whether stereotype threat may also impact initial student learning and knowledge formation when experienced prior to instruction. Predominantly African American fifth‐grade students provided either their race or the date before a videotaped, conceptually demanding mathematics lesson. Students who gave their race retained less learning over time, enjoyed the lesson less, reported a diminished desire to learn more, and were less likely to choose to engage in an optional math activity. The detrimental impact was greatest among students with high baseline cognitive resources. While stereotype threat has been well documented to harm test performance, the finding that effects extend to initial learning suggests that stereotype threat's contribution to achievement gaps may be greatly underestimated.     

“我的”最重要:儿童自我源判断能力的发展早于他人

自我参照范式是探索自我认知发展的重要范式,找到一个可靠方法获得一份稳定结果一直是儿童研究的重点和难点。研究以3岁至5岁儿童作为研究对象,通过所有权参照进行编码、图片再认和源判断进行检测。为了结果的稳定可靠,每位儿童需要参加4次测验。结果显示,图片再认上4岁、5岁儿童出现自我参照效应,源判断上3岁、4岁儿童出现自我参照效应。对源判断结果分析发现,自我参照成绩在各年龄组间保持不变、他人参照成绩随年龄增长逐渐提高,二者发展趋势的差异是5岁儿童源判断上没有自我参照效应的主要原因。以上结果说明,3~5岁儿童普遍存在自我参照效应,但测验方法会影响该效应的表现年龄;其次,自我源判断能力的发展早于他人,3~5岁之间他人源判断能力是在持续提高的;另外,4次测验间的比较证明,源判断测验较之再认具有更好的稳定性。     

空间工作记忆负载对中央注视线索返回抑制的影响

通过两个实验,探讨空间工作记忆负载对中央注视线索引发返回抑制（inhibition of return,IOR）的影响。实验一通过再认面孔的相似度来控制与中央注视线索相关的空间工作记忆任务负载,结果发现,高任务负载条件下出现IOR,低任务负载条件下中央注视线索促进搜索;实验二在实验一高任务负载的基础上加入与注视线索无关的空间工作记忆任务,结果发现,仅在与注视线索无关的空间工作记忆负载低的条件下出现IOR。结果表明,中央注视线索引发的IOR受到空间工作记忆资源的限制,中央注视线索只有在获得足够的资源时才能引发IOR。注视线索获得空间工作记忆资源多少决定中央注视线索能否引发IOR。     

Reducing the Negative Effect of the Retention Interval on the Composite Face Recognition

Our memories are quite fragile. We sometimes recognize something unseen as something seen before. This error often causes serious problems, such as the misidentification of composite faces in a criminal investigation. In such a scene, people occasionally claim to have seen a face that is actually a composite face consisting of facial parts separately seen before; this error is called the memory conjunction error. Although the likelihood of the memory conjunction error increases over time, previous studies suggest that it could be suppressed by the number of response options, which are expected to affect the criterion for the “Old” response. Our results show that the presence of three response options reduced the memory conjunction error. Additionally, providing information about the existence of composite faces affected the sensitivity for detecting old faces, whereas three response options affected the criterion. This study might contribute to the improvement of procedures for eyewitness testimony.