The Declarative/Procedural Model of Lexicon and Grammar

Our use of language depends upon two capacities: a mental lexicon of memorized words and a mental grammar of rules that underlie the sequential and hierarchical composition of lexical forms into predictably structured larger words, phrases, and sentences. The declarative/procedural model posits that the lexicon/grammar distinction in language is tied to the distinction between two well-studied brain memory systems. On this view, the memorization and use of at least simple words (those with noncompositional, that is, arbitrary form-meaning pairings) depends upon an associative memory of distributed representations that is subserved by temporal-lobe circuits previously implicated in the learning and use of fact and event knowledge. This declarative memory system appears to be specialized for learning arbitrarily related information (i.e., for associative binding). In contrast, the acquisition and use of grammatical rules that underlie symbol manipulation is subserved by frontal/basal-ganglia circuits previously implicated in the implicit (nonconscious) learning and expression of motor and cognitive skills and habits (e.g., from simple motor acts to skilled game playing). This procedural system may be specialized for computing sequences. This novel view of lexicon and grammar offers an alternative to the two main competing theoretical frameworks. It shares the perspective of traditional dual-mechanism theories in positing that the mental lexicon and a symbol-manipulating mental grammar are subserved by distinct computational components that may be linked to distinct brain structures. However, it diverges from these theories where they assume components dedicated to each of the two language capacities (that is, domain-specific) and in their common assumption that lexical memory is a rote list of items. Conversely, while it shares with single-mechanism theories the perspective that the two capacities are subserved by domain-independent computational mechanisms, it diverges from them where they link both capacities to a single associative memory system with broad anatomic distribution. The declarative/procedural model, but neither traditional dual- nor single-mechanism models, predicts double dissociations between lexicon and grammar, with associations among associative memory properties, memorized words and facts, and temporal-lobe structures, and among symbol-manipulation properties, grammatical rule products, motor skills, and frontal/basal-ganglia structures. In order to contrast lexicon and grammar while holding other factors constant, we have focused our investigations of the declarative/procedural model on morphologically complex word forms. Morphological transformations that are (largely) unproductive (e.g., in go—went, solemn—solemnity) are hypothesized to depend upon declarative memory. These have been contrasted with morphological transformations that are fully productive (e.g., in walk—walked, happy—happiness), whose computation is posited to be solely dependent upon grammatical rules subserved by the procedural system. Here evidence is presented from studies that use a range of psycholinguistic and neurolinguistic approaches with children and adults. It is argued that converging evidence from these studies supports the declarative/procedural model of lexicon and grammar.     

Incremental Validity of Cognitions in a Clinical Case Formulation: An Intraindividual Test in a Case Example

Incremental validity, the ability of a measure to predict or explain variance over and above other measures, is an important psychometric characteristic of standardized measures, but has received little attention idiographically. Idiographic assessment may be an important part of developing a clinical case formulation, guiding treatment by developing an individualized understanding of the variables that trigger and maintain distress. This study examined whether the idiosyncratic cognitive schema hypothesized by a clinician in a cognitive case formulation explained distress incrementally over that of situational triggers. Using daily ratings of situational triggers, idiosyncratic cognitions, and distress, the incremental validity of cognitions in predicting each of six distress measures was tested in a case example using dynamic time series regression. The incremental variance explained by cognitions varied across the distress measures, suggesting that, in this case example, targeting thoughts and beliefs for treatment may be important for only certain types of distress.

Another Look at the Role of Empty Categories in Sentence Processing (and Grammar)

The gap/gapless processing debate in the psycholinguistics literature contrasts two processing models: one that assumes the trace-based Government and Binding (or Principles and Parameters) Grammar and the (augmented) Active Filler Strategy and one that assumes the traceless Dependency Categorial Grammar and the Principle of Dependency Formation. This paper reports on an experiment that found new evidence against the gapless/traceless model, considers why such evidence was not found in previous studies, and explores whether a parser that combines a (partially) traceless grammar and the augmented Active Filler Strategy can explain the current finding.     

图式与句式教学:一个转折复句的教学实验

本研究根据图式理论设计转折复句的教学实验。实验对象是54个小学五年级的学生。研究发现：实验组无论在转折复句的辨认、改正和写作的表现．都明显地优于控制组。其中以改正能力的差异最明显,而且辨认、改正和写作能力的相关系数也很高。     

第二语言句子加工的ERP研究

研究者对第一语言句子加工的事件相关电位(ERP)进行研究,提出了句子加工三阶段模型及对应的ERP成分。第二语言(L2)句子加工的ERP研究结果很不一致。首先,从句子加工的ERP反应模式上来看,大多数研究发现L2学习者的ERP反应模式和母语者有质的差异,少数研究发现L2学习者加工L2句子的ERP模式类似母语者,但其反应的时间进程、波幅或分布与母语者有显著差异。被试的学习年龄、熟练程度以及学习者的两种语言的相似性程度可能是影响第二语言句子加工ERP反应的主要因素。     

阅读句子过程中词跳读的眼动研究

采用EyeLink-Ⅱ眼动记录仪,探讨了大学生阅读句子时的词跳读率.实验采用2(语境预测性:可预测语境、不可预测语境)×2(词语熟悉度:高熟悉度、低熟悉度)的两因素重复测量设计.结果发现:(1)中文阅读中的词跳读率存在着语境效应,在可预测语境下对高熟悉度词的跳读率为45%,对低熟悉度词的为27%;在不可预测语境下对高熟悉度词的跳读率为10%,对低熟悉度词的为8%;(2)中文阅读的词跳读率存在着词汇的主观熟悉度效应,不论在何种语境下,高熟悉度词的跳读率为28%,而低熟悉度词的跳读率为18%;(3)中文阅读中,语境预测性和词汇的主观熟悉度共同作用于词跳读.     

小学三年级句群教学实验研究

探讨在小学三年级句群教学条件下,样例的不同呈现方式与练习方法对形成有关图式及其技能的影响。同时,考察陈述性知识、认知技能(一般程序性知识)和策略相互间的关系及对被试任务操作的影响效果。研究结果表明：(1)在实验班中,同时呈现两个以上样例并加以归纳,再循序渐进地进行变式练习,有利于图式与技能形成以及类比迁移,且中差生获益较大;(2)在被试的任务操作中,陈述性知识主效应非常显著,其次为认知技能,再次为策略,陈述性知识和认知技能之间存在显著交互作用。     

人工语法中的内隐学习实验研究

用Reber等人发明的人工语法和人工语法学习程序,研究在复杂规则学习中的内隐学习与外显学习过程.实验结果发现内隐学习中启动效应存在,内隐学习效应明显,支持Reber等人提出的内隐学习理论;对内隐记忆与外显记忆关系的研究,支持杨治良等(1998)提出的内隐和外显记忆的"钢筋水泥"结构性模型的假设.     

Adjusting Incremental Fit Indices for Nonnormality

A variety of indices are commonly used to assess model fit in structural equation modeling. However, fit indices obtained from the normal theory maximum likelihood fit function are affected by the presence of nonnormality in the data. We present a nonnormality correction for 2 commonly used incremental fit indices, the comparative fit index and the Tucker-Lewis index. This correction uses the Satorra-Bentler scaling constant to modify the sample estimate of these fit indices but does not affect the population value. We argue that this type of nonnormality correction is superior to the correction that changes the population value of the fit index implemented in some software programs. In a simulation study, we demonstrate that our correction performs well across a variety of sample sizes, model types, and misspecification types.     

Social Biases and Solutions for Procedural Objectivity

An empirically sensitive formulation of the norms of transformative criticism must recognize that even public and shared standards of evaluation can be implemented in ways that unintentionally perpetuate and reproduce forms of social bias that are epistemically detrimental. Helen Longino's theory can explain and redress such social bias by treating peer evaluations as hypotheses based on data and by requiring a kind of perspectival diversity that bears, not on the content of the community's knowledge claims, but on the beliefs and norms of the culture of the knowledge community itself. To illustrate how socializing cognition can bias evaluations, we focus on peer‐review practices, with some discussion of peer‐review practices in philosophy. Data include responses to surveys by editors from general philosophy journals, as well as analyses of reviews and editorial decisions for the 2007 Cognitive Science Society Conference.     

An Examination of Concurrent and Incremental Validity of Four Mindfulness Scales

General consensus among psychologists supports the beneficial effects of mindfulness in the treatment of a wide range of clinical conditions such as personality, mood, and anxiety disorders. Several scales used to assess this psychological construct, mainly rooted in Eastern traditions, are currently available to researchers and clinicians. However, the conceptualization and measurement of mindfulness has been considerably diverse. The present study examines the concurrent and incremental validity of four scales: the Philadelphia Mindfulness Scale (PHLMS), the Toronto Mindfulness Scale (TMS), the Five-Facet Mindfulness Questionnaire (FFMQ), and the Langer Mindfulness Scale (LMS). Two independent samples of 176 adults and 397 students, respectively, were recruited. With few exceptions, results were consistent across the two samples and indicated that measures based on an Eastern conceptualization of mindfulness (TMS, PHLMS, and FFMQ) show a different pattern of association with the chosen outcomes compared to the LMS, which is based on a Western conceptualization. Overall, the PHLMS showed the strongest predictive effects and the LMS the weakest in terms of both number of predicted criteria and average effect size. Implications for research and practice are discussed.     

The MBTI and Social Information Processing: An Incremental Validity Study

The ability of the Myers-Briggs Type Indicator (MBTI; Myers & McCaulley, 1985) to predict performance on social cognitive tasks tapping information processing effort was assessed. Judgment and intuition interacted to predict amount of attributional adjustment on a dispositional attribution task. The MBTI scales predicted processing above and beyond measures of the five factors, rational-experiential preferences, and causal uncertainty. The relevance of these results for interpretation of the MBTI indexes is discussed.     

Sentence comprehension and memory for embedded structure

An experimental simulation technique is introduced to study memory constraints affecting comprehension of embedded sentences. Memory for embedded structure is measured in a pairing task that simulates requirements imposed by sentence comprehension. With increasing memory load (number of embeddings), the rate of performance decline is consistent across all (recall and comprehension) conditions, and reflects a loss of order (as opposed to item) information. Short-term memory overload, rather than linguistic complexity, appears sufficient to account for comprehension difficulty. Performance was imperfect even with singly embedded constructions. Recall showed no abrupt failure with multiple embeddings, indicating that memory constraints are not as discontinuous as English syntax might suggest.     

An Investigation of Incremental Effects of Interspersing Math Items on Task-Related Behavior

The purpose of this study was to replicate and extend research on task interspersal. The authors investigated whether changes in on-task behavior of two middle school students were functionally related to changes in the relative percentages of easy and difficult items on math worksheets. They found that the participants remained on task longer while completing worksheets with 33 and 67% interspersed easy problems than while completing worksheets without the interspersed easy problems. Participants’ accuracy in answering the target problems was not affected, however, by the interspersal procedure. The authors concluded that interspersing easy items on independent math seatwork assignments can increase on-task behavior.     

Considerations for the Use of Sentence Completion Tests

Often, sentence completion tests are administered to clients without a clear sense of the clinical questions to be investigated, and, therefore, the appropriate sentence completion instrument to be used. The multitude of forms that have evolved in the last fifty years have made it difficult for clinicians to make informed decisions about which form to use and for what purpose. This article presents ten general guidelines or considerations for the effective use of this popular but sometimes misused psychological assessment method. Practitioners are urged to consider such issues as oral versus written presentation of items, item content in terms of positive or negative stimulus pull, the structure of sentence stems, the original purpose of a given test in regard to intended population and theoretical orientation of the author, and the empirical validity of tests.     

Effects of Surprisal and Locality on Danish Sentence Processing: An Eye-Tracking Investigation

An eye-tracking experiment in Danish investigates two dominant accounts of sentence processing: locality-based theories that predict a processing advantage for sentences where the distance between the major syntactic heads is minimized, and the surprisal theory which predicts that processing time increases with big changes in the relative entropy of possible parses, sometimes leading to anti-locality effects. We consider both lexicalised surprisal, expressed in conditional trigram probabilities, and syntactic surprisal expressed in the manipulation of the expectedness of the second NP in Danish constructions with two postverbal NP-objects. An eye-tracking experiment showed a clear advantage for local syntactic relations, with only a marginal effect of lexicalised surprisal and no effect of syntactic surprisal. We conclude that surprisal has a relatively marginal effect, which may be clearest for verbs in verb-final languages, while locality is a robust predictor of sentence processing.     

句子语境中汉语词汇歧义消解的ERP研究

采用ERP方法,考察了汉语词汇歧义消解中句子语境作用的时间进程及大脑活动。目标词与句子语境存在一致、不一致、无关控制等3种关系。结果显示:(1)一致与不一致条件下N400的平均波幅均显著低于无关控制条件;(2)SOA为200毫秒时产生的N400平均波幅的幅度显著高于SOA为1000毫秒的条件;(3)N400的平均波幅及潜伏期均表现出左半球显著高于右半球的特点。实验结果支持词汇歧义消解的模块化观点,体现了大脑两半球语言功能的不对称性。