婴儿共同注意能力的发展

本研究采用严格的实验室测验法,从年龄趋势、学习能力、性别差异三方面考察了8～11个月婴儿共同注意能力的发展。结果表明：1）婴儿的共同注意力在8～11个月间逐步提高,9个月左右出现显著的发展性变化,但1岁以前,该能力的发展水平都较低;2）就共同注意而言,婴儿具有从练习经验中学习的可能性,且学习能力存在年龄差异,8个月的婴儿基本不能从练习中受益,而8个月以上的其他三组婴儿在练习后共同注意水平都有不同程度的提高;3）总体而言,女婴共同注意能力的发展水平显著地高于男婴。     

汉语婴儿词汇学习的注意偏好

婴儿的动、名词词类学习存在跨文化差异,但是很少研究从注意偏好角度解释这类差异。本研究利用习惯化范式考察汉语婴儿在6-8个月和17-19个月时对事件中人物,动作和物体的区分。结果发现,6-8个月的婴儿仅能区分动作变化,对人物和物体无法区分,而17-19个月的婴儿对三类变化均可以区分。本研究提供了婴儿早期注意偏好发展的实验依据,同时为儿童早期单词获得提供了新的理论基础。     

不同分类水平自然类概念的实例效应

采用Heit和Barsalou的实验范式,以不同分类水平的中文语义自然类概念为实验材料验证实例效应。研究包括2个实验,被试为180名全日制在校大学生。实验1为无修饰词概念的典型性研究．结果表明人们不仅在抽象的水平上表征概念,也在具体的实例水平上表征概念。实验2用不同分类水平的自然类概念检验了在更广泛的概念范围内的实例效应,结果表明,不同分类水平的下位概念和下位概念实例在上位概念中的平均典型性大多显著相关,而且下位概念的实例在不同分类水平上位概念中（如：动物、小动物）的变化趋势和下位概念在不同分类水平上位概念中的变化趋势一致。实验1和实验2的结果均支持了Heit和Barsalou提出的实例效应。     

8─11个月婴儿迂回行为发展特点与学习能力的研究

采用程序标准化的婴儿迂回行为测验,探讨了２４４名８─１１个月婴儿的迂回行为发展特点及学习能力。结果表明：（１）８─１１个月婴儿的迂回行为水平表现出随婴儿月龄的增长而提高的趋势。（２）８─１１个月的婴儿具有从反复尝试中学会迂回行为的可能性,其中９、１０个月婴儿的学习可能性较大,而８个月婴儿的学习可能性较小。（３）８──１１个月婴儿的学习速度随月龄增大而提高     

8─11个月婴儿迂回行为发展特点与学习能力的研究

采用程序标准化的婴儿迂回行为测验,探讨了２４４名８－１１个月婴儿的迂回行为发展特点及学习能力。结果表明：（１）８－１１个月婴儿的迂回行为水平表现出随婴儿月龄的增长而提高的趋势。（２）８－１１个月的婴儿具有从反复尝试中学会迂回行为的可能性,其中９、１０个月的婴儿的学习可能性较大,而８个月婴儿的学习可能性较小。（３）８－１１个月婴儿的学习速度随月龄增大而提高。     

婴儿识别面部表情的能力及其发展模式

采用婴儿控制的习惯化－去习惯化实验设计,测查了４２名８－１２个月的婴儿对愉快（Ｈ）、愤怒（Ａ）和惧怕（Ｆ）三种表情（照片）的习惯化速率及在六种表情配对顺序下（Ｈ－Ａ,Ａ－Ｈ,Ｈ－Ｆ,Ｆ－Ｈ,Ａ－Ｆ,Ｆ－Ａ）的识别能力。实验结果表明：（１）多数婴儿的注视高峰出现在习惯化过程早期;（２）不同年龄的婴儿对三种表情的习惯化速率相同;（３）在三种表情的六种配对情况下,不同年龄的婴儿对任一对表情中的第一个习惯化后,均可对第二个表情去习惯化,即在识别过程中不存在顺序效应。     

瑞文标准推理测验在聋童中的使用报告

本研究采用瑞文标准推理测验对9-17岁的聋童的智力发展情况进行了研究,结果表明:聋童智力的发展随着年龄的增长而增长,呈非直线性,各年龄组内不存在显著的性别差异;与中国城市版常模相比,聋童智力的发展水平要明显地低于城市正常儿童.从各年龄组均分差异来看,聋童要落后2至3个年龄段;统计检验还表明同一年龄组中,有残余听力聋童与无残余听力的聋童的智力发展水平差异并不显著;测题难度和区分度分析表明,原测题排列顺序及鉴别力基本适合聋童被试,信度和效度测定表明,瑞文标准推理测验测量聋童的智力可靠而有效.     

父母体罚与青少年焦虑抑郁的关系:同伴侵害的中介效应与亲子关系的调节效应

采用问卷法对1406名初中生进行调查,考察了同伴侵害在父母体罚与青少年焦虑抑郁关系间的中介效应,以及亲子关系对这一中介过程的调节效应。结果发现：（1）在控制了性别、年龄、家庭月收入和父母受教育水平后,父母体罚显著正向预测青少年焦虑抑郁;（2）同伴侵害在父母体罚与焦虑抑郁关系间起着显著的完全中介作用;（3）亲子关系对中介路径"父母体罚→同伴侵害→焦虑抑郁"具有显著的调节效应。     

婴儿视觉自我认知的微观发生研究

本研究采用微观发生设计,对大连市15名婴儿在15个月时用摄像追踪观察至23个月,每周观察一次.目的在于探讨婴儿视觉自我认知的具体发生时间和个体差异,以及视觉自我认知各指标的发生顺序.结果表明:(1)婴儿视觉自我认知在15～23个月间发生,随年龄增长而提高;(2)婴儿视觉自我认知一般发生于17.25个月;(3)视觉自我认知并非突然出现,而是从不稳定到稳定的渐进发展过程,在发生过程中存在个体差异;(4)视觉自我认知各指标相继发生,镜像自我认知是视觉自我认知最早出现的标志,随后是客体定向能力、照片自我认知.     

同步与否：婴儿基本面部表情识别的发展特点

面部表情是通过眼部、口部等肌肉动作传递出来的情绪信号。婴儿对面部表情的正确识别是婴儿与外界交流的重要手段,有利于情绪认知的发展。婴儿对基本面部表情识别的发展具有非同步性的特点：对正性效价表情的识别早于负性效价表情,2个月大的婴儿能辨别出正性效价表情,4～6个月大时能辨别出不同的负性效价表情;情绪感知能力的发展早于情绪理解能力,7个月大的婴儿已初步具备情绪感知能力,12个月大的婴儿还不能准确区分不同的负性效价表情所表达的情绪意义。婴儿识别表情受到环境和认知因素的双重影响,反映了基本情绪的激活到情绪图式的形成过程。     

The Effects of Prior Processing Episodes on Basic level Superiority

Four experiments were conducted to investigate the effects of prior processing episodes on people's preference for categorizing objects at the basic level (e.g. dog) relative to their preference for categorizing at the superordinate (e.g. animal) and the subordinate (e.g. Dalmation) levels. The prior processing episode in Experiment 1 was designed to induce subjects to activate representations at the superordinate level, and those in the remaining experiments were designed to induce subjects to differentiate objects at the subordinate level. After the prior processing episodes, subjects performed either a free naming or a picture categorization task that required them to decide whether an illustrated object belonged to a specified category. Results showed that prior processing episodes modestly reduced the superiority of basic level to superordinate level and subordinate level in categorization but not in free naming. The results suggest that the basic-level advantage is subject to the effects of context, but the effects are not as strong as the context effects on other aspects of categorization behaviour (e.g. rating typicality of a category member). Hence, the preference for the basic level is a somewhat more stable, invariant aspect of conceptual representation. Possible determinations of this stability are discussed.     

汉语儿童6岁前范畴层次词汇的发展研究

本研究利用个案跟踪语料和控制实验数据,考察了汉语儿童6岁前范畴层次词汇的发展情况。研究表明,基本层次词汇在产出和理解方面均占优势,名词层级的发展主要表现为下位层次词语的增加。儿童对范畴层次词汇的正确产出和理解率从高到低排序依次为基本层次、下位层次和上位层次词汇。本研究为佐证基本层次词语在汉语儿童早期语言发展中占据概念的主导地位提供了经验支持,并支持原型理论对儿童范畴分类能力发展的阐释。     

Category width and differentiation in semantic categories

The hypothesis that the judgemental categorizing behaviour measured by Pettigrew's Category-Width scale is linked to semantic categorization is investigated. Individual differences in broad vs. narrow categorizing behaviour measured by the C-W scale are reconceptualized within the framework of Rosch's (1977) theory of human categorization. Two extreme groups on the C-W scale, broad categorizers and narrow categorizers, were selected as subjects. One experiment employed a short-term release-from-proactive-inhibition paradigm. The amount of discrepancy in recall between the preshift and the shift trials was used as an index to perceived semantic distance. The result showed that narrow categorizers perceived the same fuzzy items in a semantic category as less similar to the good exemplars of that category than broad categorizers did. In a further experiment using a semantic-categorization technique, narrow categorizers judged the same fuzzy items as category members less frequently than broad categorizers did, indicating that narrow categorizers possess more differentiated semantic categories than do broad categorizers. These findings are seen as an extension of the differential categorizing behaviour on artificial categories in the C-W scale to semantic categorization for which there is a pre-existing system.     

Categorization of two-dimensional and three-dimensional stimuli by 18-month-old infants

In two experiments, 18-month-old infants’ categorization of 3D replicas and 2D photographs of the same animals and vehicles were compared to explore infants’ flexibility in categorization across different object representations. Using a sequential touching procedure, infants completed one superordinate and two basic-level categorization tasks with 3D replicas, 2D cut out photographs, or 2D images on photo cubes (“2D cubes”). For superordinate sets, 3D replicas elicited longer mean run lengths than 2D cut outs, and 3D replicas elicited equivalent mean run lengths as 2D cubes. For basic-level sets, infants categorized high-contrast animal sets when presented with 3D replicas, but they failed to categorize any of the 2D photograph sets. Categorization processes appear to differ for 3D and 2D stimuli, and infants’ discovery of object properties over time while manipulating objects may facilitate categorization, as least at the superordinate level. These findings are discussed in the context of infants’ representation abilities and the integration of perception and action.     

Neural markers of subordinate‐level categorization in 6‐ to 7‐month‐old infants

Subordinate‐level category‐learning processes in infants were investigated with ERP and looking‐time measures. ERPs were recorded while 6‐ to 7‐month‐olds were presented with Saint Bernard images during familiarization, followed by novel Saint Bernards interspersed with Beagles during test. In addition, infant looking times were measured during a paired‐preference test (novel Saint Bernard vs. novel Beagle) conducted at the conclusion of ERP recording. Slow wave activity corresponded with learning a familiarized category at the subordinate and basic levels, whereas Negative central (Nc) and P400 components were linked with novel category preference. The results provide the first evidence identifying the neural markers of subordinate‐level categorization observed in looking‐time tasks conducted with infants. Moreover, when considered in conjunction with prior research investigating the neural markers of basic‐level categorization in infants, the findings indicate that (1) slow wave and Nc components of infant ERP waveforms are general markers for processes of category learning on the one hand and novel category preference on the other, (2) novel category preference for a contrast category at the basic and subordinate levels have the Nc component in common, but novel category preference at the subordinate level is accompanied by an additional P400 component, a finding in keeping with the notion that subordinate‐level categorization is governed by mechanisms supplementary to those underlying basic‐level categorization, and (3) slow wave activity associated with subordinate‐level learning followed that associated with basic‐level learning by approximately 200 ms, a result in accord with a coarse‐to‐fine scheme for the emergence of category partitioning.     

Basic level and superordinate level categorization by autistic, mentally retarded, and normal children

Three experiments designed to test autistic children's nonverbal and verbal categorization abilities are reported in this paper. In the first two experiments, 14 autistic children were compared to 14 retarded and 14 normal children matched on verbal mental age. Their ability to categorize pictures from basic level categories and from biological and artifactual superordinate level categories was assessed using a matching-to-sample procedure. The three groups of subjects were similar in their performance. Basic level categorization was easier than more abstract categorization, and for all three groups, prototypicality played a role in categorizing superordinate level concepts; that is, children in all three groups made more errors categorizing peripheral examples. In the third experiment, a subgroup of 7 autistic children showed evidence that their lexicons were well organized and that they appreciated the meaning relationships among words at the superordinate level. These findings suggest that autistic children do not suffer a specific cognitive deficit in the ability to categorize and form abstract concepts, as has been previously suggested in the literature.     

A test of the generality of perceptually based categories found in infants: attentional differences toward natural kinds by New World monkeys

A preference to novelty paradigm used to study human infants (Quinn, 2002) examined attention to novel animal pictures at subordinate, basic and superordinate levels in tamarins. First, pairs of pictures were presented in phases, starting with a monkey species (subordinate level) and ending with mammal and dinosaur sets (superordinate levels). After each phase, tests paired novel pictures from the familiarized set with a novel broader category. Look rates toward each picture were coded. Tamarins looked significantly longer at a novel species after being familiarized with a monkey species, a species-specific effect. Subjects attended equivalently to novel primate species after habituation to four monkey species, but looked significantly longer at pictures of mammals, marking a more global-level inclusion and exclusion. Superordinate testing revealed that more novel and diverse sets were differentiated attentionally. The evidence implies that natural categorical representation occurs at an attentional level in primates in ways similar to human infants, and is affected by recent exposure and category variability.     

Representation at different levels in a conceptual hierarchy

The present study examines the influence of hierarchical level on category representation. Three computational models of representation – an exemplar model, a prototype model and an ideal representation model – were evaluated in their ability to account for the typicality gradient of categories at two hierarchical levels in the conceptual domain of clothes. The domain contains 20 subordinate categories (e.g., trousers, stockings and underwear) and an encompassing superordinate category (CLOTHES). The models were evaluated both in terms of their ability to fit the empirical data and their generalizability through marginal likelihood. The hierarchical level was found to clearly influence the type of representation: For concepts at the subordinate level, exemplar representations were supported. At the superordinate level, however, an ideal representation was overwhelmingly preferred over exemplar and prototype representations. This finding contributes to the increasingly dominant view that the human conceptual apparatus adopts both exemplar representations and more abstract representations, contradicting unitary approaches to categorization.     

The direction of hemispheric asymmetries for object categorization at different levels of abstraction depends on the task

In this study hemispheric asymmetries for categorizing objects at the basic versus subordinate level of abstraction were investigated. As predictions derived from different theoretical approaches are contradictory and experimental evidence is inconclusive in this regard, we conducted two categorization experiments, where we contrasted two experimental paradigms. In the first experiment, subjects had to verify whether a word and a laterally presented picture matched or not. In the second experiment, subjects had to identify laterally presented pictures of animals either at the basic or subordinate level by pressing a corresponding response key. Whereas the first experiment revealed an advantage of the left hemisphere (LH) for categorizing objects at the basic level and of the right hemisphere (RH) for categorizing at the subordinate level, just the opposite brain asymmetry was found in the second experiment. As the stimuli were identical in both experiments, hemispheric asymmetries seem to be strongly task dependent.     

The animate–inanimate distinction in preschool children

This study examined the development of the animate–inanimate (A–I) distinction in relation to other taxonomic categories in early childhood. Four‐ and 5‐year‐old children were administered two tasks measuring knowledge of taxonomic categories at various levels of inclusiveness. Across both matching‐to‐sample and object sorting tasks, the same pattern of categorization development was observed. Mastery of basic‐ and superordinate‐level categories was demonstrated by 4 years of age. Although 5‐year‐old children performed above chance on A–I level categories, their abilities were not as mature as those of adults. Results of this study support and extend previous studies investigating the development of children's understanding of naïve biology during the preschool years.