梨状皮层或苍白球损毁对大鼠空间认知能力的影响

在Ｍｏｒｒｉｓ迷宫中,梨状皮层或苍白球损毁大鼠的空间认知作业成绩较显著低于控制组,搜索目标以趋向式策略为主,与正常大鼠搜索策略的差异提示：①梨状皮层和苍白球参与了空间认知加工;②在图认知系统中梨状皮层和苍白球居辅助层次。     

Conceptual Integration of Arithmetic Operations With Real‐World Knowledge: Evidence From Event‐Related Potentials

Research on language processing has shown that the disruption of conceptual integration gives rise to specific patterns of event‐related brain potentials (ERPs)—N400 and P600 effects. Here, we report similar ERP effects when adults performed cross‐domain conceptual integration of analogous semantic and mathematical relations. In a problem‐solving task, when participants generated labeled answers to semantically aligned and misaligned arithmetic problems (e.g., 6 roses + 2 tulips  = ? vs. 6 roses + 2 vases  = ?), the second object label in misaligned problems yielded an N400 effect for addition (but not division) problems. In a verification task, when participants judged arithmetically correct but semantically misaligned problem sentences to be “unacceptable,” the second object label in misaligned sentences elicited a P600 effect. Thus, depending on task constraints, misaligned problems can show either of two ERP signatures of conceptual disruption. These results show that well‐educated adults can integrate mathematical and semantic relations on the rapid timescale of within‐domain ERP effects by a process akin to analogical mapping.     

内隐学习的主观测量标准

近40年来,验证知识的内隐性一直是内隐学习研究的焦点。传统三大范式常以自由言语报告或是迫选测验作为验证知识内隐性的外显指标,然而各种迹象表明,言语报告和迫选测验存在一定的局限性。由此,Dienes等人提出了内隐学习的主观测量。文章将从言语报告和追选测验的局限性着手,阐述主观测量诞生的必要性及其在衡量知识意识性上的效度。     

Fast mapping of multiple words: Insights into when “the information provided” does and does not equal “the information perceived”

A candidate process for explaining the rapid vocabulary acquisition during the preschool years is “fast mapping,” children's ability to sketch partial maps of a word's meaning after brief exposure. The present study examines this process for learning multiple words, testing the hypothesis that children's attention to the information critical for quickly mapping multiple words onto their referents depends on the alternatives available when the words are introduced. Fifty-eight 40-month-old children participated in one of two conditions. In both conditions, each trial for novel Word #1 presented a novel object and three familiar ones. The conditions differed in the object choices presented when novel Word #2 was introduced. Although the same information was available to children in both conditions, younger children showed significantly better learning of the new words in the successive condition than in the concurrent condition. Implications of this for age-related differences and for teaching strategies are discussed.     

Social interaction facilitates word learning in preverbal infants: Word–object mapping and word segmentation

In natural settings, infants learn spoken language with the aid of a caregiver who explicitly provides social signals. Although previous studies have demonstrated that young infants are sensitive to these signals that facilitate language development, the impact of real-life interactions on early word segmentation and word–object mapping remains elusive. We tested whether infants aged 5–6 months and 9–10 months could segment a word from continuous speech and acquire a word–object relation in an ecologically valid setting. In Experiment 1, infants were exposed to a live tutor, while in Experiment 2, another group of infants were exposed to a televised tutor. Results indicate that both younger and older infants were capable of segmenting a word and learning a word–object association only when the stimuli were derived from a live tutor in a natural manner, suggesting that real-life interaction enhances the learning of spoken words in preverbal infants.     

The Micro-Category account of analogy

Here, we investigate how activation of mental representations of categories during analogical reasoning influences subsequent cognitive processing. Specifically, we present and test the central predictions of the "Micro-Category" account of analogy. This account emphasizes the role of categories in aligning terms for analogical mapping. In a semantic priming paradigm, a four-word analogy task was compared to two other four-word tasks. Stimuli were identical in all tasks; only the instructions given to participants differed. Participants were instructed to identify analogy relations, category relations, or conventionalized semantic relations in the four-word sets. After each four-word set, a single target word appeared and participants named this word aloud. Target words that referred to category relations in the preceding four-word sets were primed as strongly when participants identified analogies as when participants identified categories, suggesting that activation of category concepts plays an important role in analogical thinking. In addition, priming of category-referent words in the analogy and category tasks was significantly greater than priming of these words when participants identified conventionalized semantic relations. Since identical stimuli were used in all conditions, this finding indicates that it is the activation of category relations, distinct from any effect of basic semantic association, that causes analogical reasoning to prime category-referent words. We delineate how the "Micro-Category" account of analogy predicts these phenomena and unifies findings from diverse areas of research concerning analogical reasoning.     

Foster Parents’ Perceptions of Factors Needed for Successful Foster Placements

The purpose of the study was to describe the needs of foster parents for placement success. Sixty-three foster parents from a central Canadian province were asked the following question: “What do you need for a successful foster placement”? Foster parents grouped together all responses, which were analyzed using multidimensional scaling and cluster analysis procedures. Foster parents indicated that they needed the right personality and skills, information about the foster child, a good relationship with the fostering agency, individualized services, community support, linkages to other foster families, supportive immediate and extended families, as well as self-care skills. There were some differences between the existing literature and the needs identified by study participants. Differences included the need for information about policies and procedures, their treatment by professionals, and the need for formal foster parent organizations.     

概念加工深度影响道德概念水平方位隐喻联结

通过6个实验探究了不同概念加工深度下道德概念与水平方位的隐喻联结。实验1采用迫选任务范式, 实验2、实验3和实验4均采用空间Stroop范式, 实验5和实验6均采用启动范式。结果发现：(1)在思维迫选中存在道德与左、不道德与右的隐喻联结; (2)在较深、中等概念加工深度下发现了隐喻一致性效应, 在较浅概念加工深度下未发现这种效应; (3)在较浅概念加工深度下始源域和目标域之间的映射均不存在, 即未在启动范式中发现隐喻联结。结果表明：道德概念与水平方位存在隐喻联结, 这种隐喻联结中左表征道德、右表征不道德, 并同时受到始源域和目标域加工深度的影响。     

Time Points: A Gestural Study of the Development of Space–Time Mappings

Human languages typically employ a variety of spatial metaphors for time (e.g., “I'm looking forward to the weekend”). The metaphorical grounding of time in space is also evident in gesture. The gestures that are performed when talking about time bolster the view that people sometimes think about regions of time as if they were locations in space. However, almost nothing is known about the development of metaphorical gestures for time, despite keen interest in the origins of space–time metaphors. In this study, we examined the gestures that English‐speaking 6‐to‐7‐year‐olds, 9‐to‐11‐year‐olds, 13‐to‐15‐year‐olds, and adults produced when talking about time. Participants were asked to explain the difference between pairs of temporal adverbs (e.g., “tomorrow” versus “yesterday”) and to use their hands while doing so. There was a gradual increase across age groups in the propensity to produce spatial metaphorical gestures when talking about time. However, even a substantial majority of 6‐to‐7‐year‐old children produced a spatial gesture on at least one occasion. Overall, participants produced fewer gestures in the sagittal (front‐back) axis than in the lateral (left‐right) axis, and this was particularly true for the youngest children and adolescents. Gestures that were incongruent with the prevailing norms of space–time mappings among English speakers (leftward and backward for past; rightward and forward for future) gradually decreased with increasing age. This was true for both the lateral and sagittal axis. This study highlights the importance of metaphoricity in children's understanding of time. It also suggests that, by 6 to 7 years of age, culturally determined representations of time have a strong influence on children's spatial metaphorical gestures.