PDP启动型实验程序与Richardson-Klavehn模型的比较研究

2个实验对PDP的启动型实验程序与Richardson-Klavehn的修正模型进行了比较研究,通过对指示语的操纵,考察提取策略是否完全受意志控制,以及注意水平、刺激材料、测验类型、加工水平对被试作业的影响.结果发现刺激材料对有意识控制记忆的实验结果影响很大,对PDP的无意识自动加工参数无影响;启动型实验程序的结果与PDP理论相当一致;提取策略不一定是受意志精确控制的.     

不同加工类型的不同加工水平对内隐记忆的影响的研究

针对加工水平对内隐记忆的影响的研究结论互相矛盾的现状．本研究认为有三个方面的原因。通过实验和讨论得出如下结论：1、加工类型和加工水平是对加工在质与量上分别作出的区分,这种区分与有意识／无意识在学习加工中的引入是有意义和必要的。2、内隐记忆存在着加工水平效应。这个结论支持和补充了加工的观点。3、概念驱动测验和数据驱动测验都受到了语义和非语义变量的影响。     

多媒体互动插图对科学说明文学习的影响

48名 1 3岁中学生被分为高低两种学习能力 ,每种被试又被分成两组分别学习配有两种插图 (多媒体静态插图和多媒体互动插图 )的一篇生物说明文 ,结果表明 :( 1 )在重在考查插图加工水平的图片测验上 ,学习能力和插图类型主效应均显著 ,但两者之间不存在显著交互作用 ;( 2 )在重在考查文图整合加工水平的文字测验上 ,学习能力和插图类型之间存在显著的交互作用 ,即只有当学习能力高时 ,两种插图之间存在显著差异。 ( 3 )在被试的填图过程中 ,被试的尝试次数与其插图加工时间及学习效果之间存在显著的相关。这说明 ,多媒体互动插图可促进所有被试对插图的加工 ,但只能促进学习能力高者对图文的整合加工 ,而且多媒体互动插图对学习的促进效果与被试加工插图时的实际加工深度有关     

加工水平、回想策略与不自觉记忆

本研究有两项实验。实验一包括三种加工水平和三种不自觉记忆测验方式。结果表明,补笔不受加工水平影响。词干补笔是否受加工水平影响与词干补笔可能性的大小无关。实验二采用了问卷技术,在词干补笔测验后要求被试回答他在测验中是否进行了有意回想。结果表明,有意回想的被试对意义加工的单字比对结构加工的单字获得更高的起动效应;而没有回想的被试其结果不受加工水平影响,从而证实,词干补笔也不受加工水平影响。     

连贯阅读中文本表征的意识性研究

采用独立记得-知道范式(IRK)和加工分离范式(PDP)探讨连贯阅读中文本表征的意识性问题。实验1使用独立记得-知道范式(IRK),分析被试对再认项目判断为“记得”或“知道”的比例（击中率）;实验2使用加工分离范式(PDP),分析被试在包含、排斥测验中的击中率和虚报率。总的实验结果表明,在连贯阅读中,命题表征的建构是无意识的,情境模型的建构也是无意识的,该结果支持和完善了文本阅读双加工理论。     

汉字内隐记忆的实验研究(Ⅲ):检验加工分离说的修正模型

实验1和实验2依据目标字和非目标字两种条件,比较了再认、整字偏好、包含、排除四类测验。在“过程不纯净”假设的前提下．检验了加工分离说（PDP）的修正模型并得到以下结果：（1）PDP修正馍型的结论与匹配比较法的结果吻合。本实验条件下,偏好测验是“纯净”的．但无意识影响参与了再认测验。（2）PDP修正模型关于R＞R。的理论结果得到了目标字与非目标字两种条件下的实验的证实。另外．关于无意识影响遵循的规律与指导语无关的理论推测也得到了证实。（3）再认与偏好测验出现了功能分离。PDP修正模型可以解释其本质。（4）750ms呈现刺激时,反应倾向的规津是：外显过程比内隐过程严格;两过程均不受注意程度的作用而发生波动。     

智障学生与正常学生内隐记忆与外显记忆的对比研究

本实验以探索智障学生与正常学生内隐记忆与外显记忆的发展特点为目的。采用2(材料类型:图片、汉语双字词)×2(贡献来源:外显记忆、内隐记忆)×2(被试类型:智障学生、正常学生)×2(年龄:低年级、高年级)的四因素混合设计,通过加工分离程序(PDP,process dissociation procedure)的包含和排除测验,计算意识和无意识的贡献大小。结果表明,⑴材料类型主效应极其显著;⑵贡献来源的主效应极其显著;⑶年龄效应不显著;⑷被试效应不显著;本研究结论可对智障学生的教育提供理论指导。     

通道匹配和加工水平对DRM范式错误记忆的影响

本研究采用2×2×2被试间设计,分别对视觉或听觉通道呈现的DRM词表进行了高水平或低水平的加工,此后又在视觉或听觉通道上,进行了针对DRM词表旧有项目、关键诱饵和无关项目的再认测验。实验证明了DRM范式中错误记忆的稳定存在,并且错误记忆受通道变换和加工水平变化的影响。通道不匹配时的错误记忆效应要大于二者匹配时的;通道匹配时,视觉呈现所导致的错误记忆效应要大于听觉呈现的;通道不匹配时,由听觉学习转到视觉测验时所导致的错误记忆效应要大于由视觉学习转到听觉测验时的。实验表明通道效应和加工水平效应是相互作用的。     

概念内隐记忆中的注意促进效应

Swallow和Jiang (2010)最早发现, 编码时的目标探测会促进同时呈现的背景信息在随后记忆测验中的表现, 并将这一现象称为注意促进效应(Attentional Boost Effect, ABE)。随后研究发现这一现象并不会出现在概念内隐测验中, 由此提出目标探测主要促进的是背景信息的知觉加工, 而非语义加工。本研究通过3个实验, 操纵了对背景信息的编码加工类型(知觉加工或概念加工)。结果发现, 当与目标探测同时进行的是对背景信息的概念加工任务, 则ABE会出现在随后的概念内隐测验中。反之, 当对背景信息进行的是知觉加工任务时, 则ABE会出现在随后的知觉内隐测验而不是概念内隐测验中。这些结果表明, 目标探测既可能促进背景信息的知觉加工, 也可能促进背景信息的语义加工, 但只有在目标探测下背景信息的编码加工与随后内隐测验中所依赖的提取加工具有一致性, 才会产生ABE。     

对广告信息加工的性别差异

研究者运用加工分离程序(PDP),探讨了在不同性别的广告代言人条件下,不同性别的目标受众对其所代言品牌在控制性加工和自动化加工水平上的差异。结果发现：（1）在男性代言人条件下,男性受众对其所代言品牌的自动化加工水平明显高于女性被试,两者控制性加工水平差异不显著;（2）在女性代言人条件下,女性受众对其所代言的品牌的自动化加工水平明显高于男性被试,两者的控制性加工水平差异不显著。实验结果对广告的设计与制作有着借鉴意义。     

Measuring automatic retrieval in a conceptual priming task

The speeded response technique has demonstrated that priming in perceptual memory tasks can occur through automatic retrieval that is uncontaminated by conscious retrieval (pure automatic retrieval). This work assesses whether priming in a conceptual task (category exemplar generation) can occur through pure automatic retrieval using the same technique. Automatic retrieval estimates obtained using the speeded response technique were compared to those obtained using more traditional measures (implicit memory and process dissociation procedure [PDP]). Similar estimates of automatic retrieval were obtained for speeded, implicit, and PDP groups following shallow processing. However, higher estimates of automatic retrieval were obtained following deep processing in the speeded and implicit conditions compared to the PDP condition. Advantages for using the speeded response technique to index automatic memory are discussed.     

A paradoxical dissociation in the effects of midazolam on recollection and automatic processes in the process dissociation procedure

This study used midazolam-induced amnesia to explore the plausibility of the estimates provided by the process dissociation procedure (PDP), which is designed to estimate the contributions of recollection (R) and automatic (A) processes to implicit memory performance. In a double-blind, placebo-controlled, within-subject design with 24 participants, single midazolam doses were administered intravenously, and word stem completion performance was used to calculate PDP estimates. A dissociation was observed such that midazolam decreased R but increased A estimates relative to placebo. Given that a manipulation that induces amnesia would not be expected to facilitate a memory process, these results add to the accumulating body of evidence suggesting that PDP estimates are not always theoretically plausible. Such evidence raises important questions about the use of the PDP.     

Analyzing estimates of automatic and conscious retrieval in between- and within-subjects designs

The process dissociation procedure (PDP) was developed as a means of quantifying the contributions of conscious and automatic retrieval to memory performance. Although the required inclusion and exclusion conditions are manipulated within subjects in most experiments, several researchers have expressed concerns that the instructions may be particularly difficult to follow under these conditions. Thus, manipulating instructions between subjects may have some advantages, although some aspects of the statistical analysis of conscious and automatic estimates are not routine in such a design. We describe a procedure for this analysis and present some initial data to illustrate its application to PDP. We also comment on other issues related to the calculation of estimates of automatic and conscious retrieval in between- and within-subjects designs.     

Automatic retrieval in directed forgetting

In two experiments, we investigated the role of automatic retrieval in directed forgetting, using a stem completion test. In each experiment, we compared the performance of an implicit group, a process dissociation procedure (PDP) group, and a group given a speeded response task. The response times of the speeded response group on the stem completion task replicated earlier data in suggesting that this group adopted a purely automatic retrieval strategy. Experiment 1 revealed a directed-forgetting effect on automatic retrieval with the item method, but Experiment 2 revealed no directed-forgetting effect on automatic retrieval with the list method, consistent with the lack of implicit effects with the list method throughout the literature. Both experiments showed lower automatic estimates for the PDP group than for the implicit and speeded response groups, which did not differ. The data are consistent with either a selective rehearsal or an inhibition account of directed forgetting with the list method. The comparison of methods for assessing automatic retrieval is consistent with earlier evidence suggesting that subjects may adopt a generate/recognize strategy when given direct retrieval instructions.     

有多少记忆可以内隐——兼评Jacoby加工分离程序

自从1991Jacoby使用简单的再认任务分离出意识性提取与无意识熟悉性以来,虽然PDP的计算范式也受到一些修正,但均没有在计算范式的内核思想上改进过,只是PDP延伸出的应用研究非常多。其实,Jacoby在构建PDP范式时,从描述PDP的心理现象、构建数学模型到PDP在实践中的应用上均出现了重大失误。本研究从上述三个方面对PDP提出了质疑,使用集合模型重新构建了PDP计算模型,用实验验证了PDP新模型,纠正了Jacoby理论与应用的三大错误。     

国内近十年来意识和无意识关系研究的新成就

近十年来,国内掀起了从自然科学途径进行意识和无意识对比研究的新热潮,尤其在实验范式的引进、修正、完善和模型建构方面,做出了中国学者自己的贡献。错误记忆、内隐时间及不注意视盲等新领域的触及代表了国内学者在意识研究内容上的丰富。“钢筋水泥”、“意识涌现”及“车站监视室”等模型的提出,代表了中国学者在意识研究理论方面的创新。当前国内意识研究与国外基本同步,但存在着“研究领域泛化,神经机制探讨有限,跨学科整合力度有待深化”的问题。     

Automatic processing influences free recall: converging evidence from the process dissociation procedure and remember-know judgments

Dual-process theories of retrieval suggest that controlled and automatic processing contribute to memory performance. Free recall tests are often considered pure measures of recollection, assessing only the controlled process. We report two experiments demonstrating that automatic processes also influence free recall. Experiment 1 used inclusion and exclusion tasks to estimate recollection and automaticity in free recall, adopting a new variant of the process dissociation procedure. Dividing attention during study selectively reduced the recollection estimate but did not affect the automatic component. In Experiment 2, we replicated the results of Experiment 1, and subjects additionally reported remember–know–guess judgments during recall in the inclusion condition. In the latter task, dividing attention during study reduced remember judgments for studied items, but know responses were unaffected. Results from both methods indicated that free recall is partly driven by automatic processes. Thus, we conclude that retrieval in free recall tests is not driven solely by conscious recollection (or remembering) but also by automatic influences of the same sort believed to drive priming on implicit memory tests. Sometimes items come to mind without volition in free recall.     

内隐记忆的证明逻辑与加工分离说（PDP）的修正模型

讨论了内隐记忆的证明逻辑和内隐与外显测验中的意识和无意识影响问题。间接证明内隐记忆的逻辑应用在功能分离实验中。它的前提假设是记忆测验都是＂纯净＂的。直接证明逻辑应用在匹配比较实验中。它认为测验中的意识和无意识影响是并存的,Ｊａｃｏｂｙ等人近期提出的加工分离说（ＰＤＰ）在匹配比较法的基础上,将测验中的意识和无意识影响进行了分离,并借用经典测验理论的公式计算这两种影响。作者认为,按照概率论关于两个随机独立事件之和与积的运算法则,必须把包含测验（ｉｎｃｌｕｓｉｏｎｔｅｓｔ）的公式修正为Ｉｎｃｌｕｓｉｏｎ＝Ｒ（１－ａ）＋Ａ（１－Ｒ）。修正过的ＰＤＰ由四个方程组成。它不仅考虑了原ＰＤＰ忽视的外显条件下的无意识缺失（１－ａ）,而且可以更加确切地估计回忆概率（Ｒ）。这在数学理论上已找到了证据。     

The Directed Forgetting Effect in Word-fragment Completion: An Application of the Process Dissociation Procedure

In three experiments, subjects were asked to remember and forget study words. In line with previous studies, a directed forgetting effect was observed in a word-fragment completion task: Instructions to remember increased the completion of target fragments compared with instructions to forget (Experiment 1). Using the process dissociation procedure (Jacoby, 1991), it appeared that instructions to remember increased the estimates of intentional influences of memory but did not affect the estimates of automatic uses of memory (Experiments 1, 2 and 3). This suggests that directed forgetting effects in word-fragment completion reflect the surreptitious influence of explicit memory in a nominally implicit memory task. However, a meta-analysis indicated that directed forgetting instructions affected automatic and intentional influences of memory in opposite directions. This finding casts doubt on the assumption of independence between automatic and intentional uses of memory. The implications for use of the process dissociation procedure are discussed.     

Measuring automatic retrieval: a comparison of implicit memory, process dissociation, and speeded response procedures

Using the stem completion task, we compared estimates of automatic retrieval from an implicit memory task, the process dissociation procedure, and the speeded response procedure. Two standard manipulations were employed. In Experiment 1, a depth of processing effect was found on automatic retrieval using the speeded response procedure although this effect was substantially reduced in Experiment 2 when lexical processing was required of all words. In Experiment 3, the speeded response procedure showed an advantage of full versus divided attention at study on automatic retrieval. An implicit condition showed parallel effects in each study, suggesting that implicit stem completion may normally provide a good estimate of automatic retrieval. Also, we replicated earlier findings from the process dissociation procedure, but estimates of automatic retrieval from this procedure were consistently lower than those from the speeded response procedure, except when conscious retrieval was relatively low. We discuss several factors that may contribute to the conflicting outcomes, including the evidence for theoretical assumptions and criterial task differences between implicit and explicit tests.