Phonological Activation in Multi-syllabic Sord Recognition

Three experiments were conducted to test the phonological recoding hypothesis in visual word recognition. Most studies on this issue have been conducted using mono-syllabic words, eventually constructing various models of phonological processing. Yet in many languages including English, the majority of words are multi-syllabic words. English includes words incorporating a silent letter in their letter strings (e.g., champane). Such words provide an opportunity for investigating the role of phonological information in multi-syllabic words by comparing them to words that do not have the silent letter in the corresponding position (e.g., passener). The performance focus is on the effects of removing letters from words with a silent letter and from words with a non-silent letter. Three representative lexical tasks—naming, semantic categorization, lexical decision—were conducted in the present study. Stimuli that excluded a silent letter (e.g., champa_ne) were processed faster than those that excluded a sounding letter (e.g., passen_er) in the naming (Experiment 1), the semantic categorization (Experiment 2), and the lexical decision task (Experiment 3). The convergent evidence from these three experiments provides seminal proof of phonological recoding in multi-syllabic word recognition. An erratum to this article can be found at     

前扣带回功能的冲突监测理论

前扣带回在多种任务中的普遍激活使它成为当前认知控制研究的一个热点。一般认为它是执行控制网络的一个组成部分。针对它的功能尚缺乏一个综合的可以普遍接受的理论,前扣带回功能的冲突监测理论是一个影响十分广泛的理论。它认为前扣带回通过监测冲突提供控制信号,并将控制信号传达给具体负责控制的脑区。该文对冲突监测理论的观点及其实验支持做了简要的介绍,并对该理论存在的一些问题做了一些说明     

从多元概化理论看高考综合能力测试的改进

通过多元概化理论的研究发现,高考综合能力测试（2001,广东）的总体信度达到了可以接受的水平（0.784）。但测验中各部分对总方差的贡献程度与预定的赋分比例有较大差距。其中,地理和政治的贡献度偏低,化学和历史的贡献度偏高。这表明有（历史和化学）偏科特点的考生得到了较高的综合分数。又经决策(D)研究发现,增加地理部分的题量会反常地降低测验的总体信度,这说明有不少高分考生答错或主动放弃了地理科题目。因此,如何有效控制各部分的实际贡献程度、避免负面导向是当前高考综合能力测试亟待解决的问题。     

Suicidal ideation,parenting style,and family climate among Hong Kong adolescents

The prevalence of suicidal ideation and its relations with perceived parenting treatment and family climate was examined in 120 Hong Kong students aged 15–19 years. Fifty‐two per cent of the participants reported suicide ideation. Suicide ideation was found to be significantly associated with perceived authoritarian parenting, low parental warmth, high maternal over‐control, negative child‐rearing practices, and a negative family climate. A positive family climate may act as a buffer against developing suicide ideation in adolescents.     

心算加工中tie effect的加工机制

tie effect主要表现为tie比nontie更快更准确解决,以及tie/nontie与问题大小的交互作用,较大题目的tie比nontie具有更明显的反应时优势,tie的问题大小效应比nontie要小的多。有关tie effect加工机制的解释主要有基于编码的理论和基于结果通达的理论。目前的研究主要通过操作问题呈现方式以及报告加工策略的方法分别考察编码方式及加工策略的影响,今后研究应开拓新的研究范式以加深对其加工机制的认识。     

语文学习困难儿童的工作记忆与加工速度

加工速度和工作记忆反应了不同的认知加工过程,在认知发展研究中,加工速度和工作记忆所起的作用仍存在较大的分歧.采用多因素混合实验设计,在严格控制条件下,比较了语文学习困难和控制组儿童的工作记忆和加工速度.结果发现,与控制组相比,语文学习困难儿童在工作记忆和加工速度方面均存在明显的不足,但加工速度不能解释不同能力组之间的差异,语文学习困难儿童的缺陷在于工作记忆能力的下降.工作记忆的缺陷在于言语工作记忆和中央执行功能的不足,与视空间工作记忆能力无关.语文学习困难既存在一般的工作记忆缺陷(中央执行功能)也存在特定的工作记忆(言语工作记忆)能力的不足.     

Theoretical and methodological approaches to apparent movement of short-range process and pattern perception

A variable raster and vector display processor interfaced with a PDP-11/23 computer is briefly described. Several experiments using random-dot cinematograms (RDCs) (raster display) and line segments (vector display) are discussed. The experiments on cooperative processes of apparent movement of RDCs and spatial-frequency-filtered RDCs showed that the average cooperative neighborhood of neural interaction is about 15 min arc of visual angle. In pattern perception, based on Julesz’s texton theory (1981) and Shaw’s attention model (1980), this study showed that the aperture of attention in serial and parallel processing is a function of feature gradient, set size, and eccentricity.     

ON THE APPLICABILITY OF THE QUANTUM MEASUREMENT FORMALISM

Customary discussions of quantum measurements are unrealistic, in the sense that they do not reflect what happens in most actual measurements even under ideal circumstances. Even theories of measurement which discard the projection postulate tend to retain two unrealistic assumptions of the von Neumann theory: that a measurement consists of a single physical interaction, and that the topic of every measurement is information wholly contained in the quantum state of the object of measurement. I suggest that these unrealistic assumptions originate from an overly literal interpretation of the operator formalism of quantum mechanics. I also suggest, following Park, that some issues can be clarified by distinguishing the sense of the term 'measurement' occurring in the quantum-mechanical operator formalism, and the sense of 'measurement' that refers to actual processes of gaining information about the physical world.     

汉诺塔问题解决的认知过程及特点分析

以267名大学生为被试,对汉诺塔问题(Tower of Hanoi)解决的认知过程及特点进行了分析。相对于汉诺塔问题解决较差者(有多余移动步骤的被试)而言,以最少步数解决汉诺塔问题的被试其第一步计划时间较长,但平均计划时间却明显要短。汉诺塔问题解决较差者多在关键步骤上出错,从而导致多余的移动步数以及总体完成时间的延长。进一步分析表明,汉诺塔问题解决的这种认知活动主要反映的是与计划和抑制有关的总体计划协调能力以及空间短时记忆能力。