The intersensory origins of word‐comprehension: an ecological–dynamic systems view

How do infants begin to understand spoken words? Recent research suggests that word comprehension develops from the early detection of intersensory relations between conventionally paired auditory speech patterns (words) and visible objects or actions. More importantly, in keeping with dynamic systems principles, the findings suggest that word comprehension develops from a dynamic and complementary relationship between the organism (the infant) and the environment (language addressed to the infant). In addition, parallel findings from speech and non‐speech studies of intersensory perception provide evidence for domain general processes in the development of word comprehension. These research findings contrast with the view that a lexical acquisition device with specific lexical principles and innate constraints is required for early word comprehension. Furthermore, they suggest that learning of word–object relations is not merely an associative process. The data support an alternative view of the developmental process that emphasizes the dynamic and reciprocal interactions between general intersensory perception, selective attention and learning in infants, and the specific characteristics of maternal communication.     

Kindergarten predictors of three aspects of reading achievement

Kindergarten measures of intelligence, auditory perception, visual perception, and associative learning were used to predict three aspects of reading achievement (word attack, word recognition, and comprehension) at the end of Grades 1,2, and 3 for 79 subjects. The predictability of each measure was a function not only of grade, but also of the aspect of reading achievement being predicted. Multiple correlations of the predictors tended to increase across grade levels and were highest for the comprehension aspect of reading. The Number Facility subtest of the PMA was the over-all best predictor or reading achievement. Possible reasons for this and other findings are discussed.     

Colour perception changes with basic colour word comprehension

Recent work has investigated the origin of infant colour categories, showing pre-linguistic infants categorise colour even in the absence of colour words. These infant categories are similar but not identical to adult categories, giving rise to an important question about how infant colour perception changes with the learning of colour words. Here we present two novel paradigms in which 12- and 19-month-old participants learning English as their first language were assessed on their perception of colour, while data on their colour word comprehension were also collected. Results indicate that participants' perception of colours close to the colour category boundaries dramatically change after colour word learning. The results highlight the shift made from infant colour categories to adult-like linguistically mediated colour categories that accompanies colour word learning.

Research Highlights

• We aimed to test whether colour perception is linguistically mediated in infants.
• We used novel eye-tracking and pupillometry paradigms to test infant colour perception either side of learning colour words.
• Infants' discrimination of colour changes after learning colour words, suggesting a shift due to colour word learning.
• A shift from pre-linguistic colour representation to linguistically mediated colour representation is discussed.

     

家庭社会经济地位对幼儿词汇理解的影响：多重中介效应分析

摘 要 目的：探讨家庭阅读环境（HLE）和电子媒介暴露在家庭社会经济地位（SES）和幼儿词汇理解间的中介作用。 方法：使用家庭基本信息调查表、家庭阅读环境问卷、皮博迪图片词汇测验对278名幼儿及其父母进行调查。 结果：（1）SES、HLE各维度（除hle5）与词汇理解呈显著正相关;电子屏幕使用时间与SES、HLE各维度和词汇理解呈显著负相关;（2）HLE和电子屏幕使用时间分别在SES和母亲受教育水平与幼儿词汇理解间起链式中介作用。 结论：HLE和电子屏幕使用时间在SES和幼儿词汇理解间起中介作用。     

Why children learn color and size words so differently: evidence from adults' learning of artificial terms.

An adult simulation study examined why children's learning of color and size terms follow different developmental patterns, one in which word comprehension precedes success in nonlinguistic matching tasks versus one in which matching precedes word comprehension. In 4 experiments, adults learned artificial labels for values on novel dimensions. Training mimicked that characteristic for children learning either color words or size words. The results suggest that the learning trajectories arise from the different frames in which different dimensions are trained: Using a comparison (size-like) training regimen helps learners pick out the relevant dimension, and using a categorization (color-like) training regimen helps the learner correctly comprehend and produce dimension terms. The results indicate that the training regimen, not the meanings of the terms or the specific dimensions, determines the pattern of learning.     

The relative strengths of indirect and direct word learning

Indirect word learning lacks many of the overt social-pragmatic cues to reference available in direct word learning, yet the two result in equally robust mappings when comprehension is assessed immediately after learning. The 3 studies reported here investigated how 3-year-olds (N=96) respond to more challenging tests of the relative strengths of indirect and direct word learning. In Study 1, children's comprehension of indirectly and directly learned proper and common names was tested after a 2-day delay. Both types of learning resulted in proper name mappings that picked out an individual and in common name mappings that could be extended to another category member. In Studies 2 and 3, children's comprehension was tested after they had been provided with additional, and sometimes inconsistent, information about the scope of previously learned words. There was a hint of a difference between indirect and direct word learning. but results overall suggested that the two were equivalent.     

汉语儿童读词者的认知特征及其影响因素

读词者是指能够流畅地进行字词识别和解码, 却难以很好地理解文本内容的学生。以840名小学一到六年级学生为研究对象, 对其进行阅读速度、阅读理解、语素意识(包括同音语素意识、同形语素意识和复合语素意识)、汉字识别、口语词汇、工作记忆、一般智力等测查, 通过现状描述和多分类logistic回归分析, 结果发现：(1)一年级汉语儿童读词者的检出率为0.7%, 二年级之后的检出率在6.5%~10.1%之间; (2)在语言特异性认知因素上, 控制了年龄和智力后, 与其他学生相比, 读词者在汉字识别任务上表现较好, 在语素意识各个任务及口语词汇上表现较差; (3)年龄和智力是造成读词者比率增加的一般因素; (4)同音语素意识和口语词汇是造成读词者比率增加的语言特异性认知因素。     

儿童早期词汇获得的跨语言/文化研究

婴儿词汇学习是国际语言发展研究的前沿领域, 但大多数研究都是以英语婴儿为研究对象。目前国内关于汉语婴儿早期语言发展研究处于起步阶段。由于汉语在词法、句法等方面具有明显的特殊性, 另外, 成人“言语输入”的语用习惯以及非言语线索都会影响婴儿早期词汇学习, 使得不同语言文化下的婴儿呈现不同的单词学习模式。本项目力图从跨语言视角考察汉语和英语婴儿的早期单词学习(包括单词的理解和产生)以及促进婴儿语言发展的成人言语和非言语输入特征。研究将综合采用实验室实验、半结构化实验室观察和量表测量等研究方法, 利用新的研究技术(如习惯化和IPLP), 从多个角度探索婴儿词汇发展, 以及不同语言文化和个体环境对婴儿早期词汇学习的影响, 揭示词汇获得的跨语言一致性和特异性。研究结果有望对儿童的语言学习提供启示。     

Acquisition of inflection-like rules in concept-formation tasks

The learning of inflection-like rules was examined in experimental situations designed as concept-formation tasks. Nonsense words with prefix, stem, and suffix positions were used to form word expressions in an artificial miniature language. The inflection rules, besides separating word segments, served to relate the word segments to a reference field. The results suggest that words are learned component by component, the learning process being affected by factors like position and distinctiveness of word parts, of stimulus presentation, and kind of strategy used. The acquisition of inflection rules is a function of feedback types, modes of presentation, and presentation of combined vs. discrete word parts. Inflection rules are learned in much the same way as word meanings. With complex rules the task is difficult, the acquisition process slow, and the general rule comprehension low. However, the findings indicated that also complex rules may be learned in concept formation situations. As an explanation of language learning in concept-formation situations, a two-stage model was set forth.     

Pre-existing Background Knowledge Influences Socioeconomic Differences in Preschoolers’ Word Learning and Comprehension

The goal of the current study is to explore the influence of knowledge on socioeconomic discrepancies in word learning and comprehension. After establishing socioeconomic differences in background knowledge (Study 1), the authors presented children with a storybook that incorporates this knowledge (Study 2). Results indicated that middle-income children learned significantly more words and comprehended the story better than lower-income children. By contrast, Study 3 presented children with a novel category and found that children performed equally in their word learning and comprehension. This suggests that socioeconomic differences in vocabulary and comprehension skills may be partially explained by differences in extant knowledge.     

学习困难学生阅读理解监视的实验研究

以62名学习困难学生和63名优生为被试,采用错误觉察技术对优差生的阅读理解监视进行了实验研究。结果表明：（1）对内部不一致与外部不一致的觉察能力,学习困难学生显著弱于优生;（2）外部不一致觉察水平与基于理解自信度评价的理解监控水平之间有显著的相关,但方向不一致;内部不一致觉察水平与基于理解自信度评价的理解监控水平之间相关显著,且方向一致。     

The Influence of Two Cognitive-Linguistic Variables on Incidental Word Learning in 5-Year-Olds

The relation between incidental word learning and two cognitive-linguistic variables—phonological memory and phonological awareness—is not fully understood. Thirty-five typically developing, 5-year-old, preschool children participated in a study examining the association between phonological memory, phonological awareness, and incidental word learning. Children were exposed to target words in a read-aloud story that accompanied a wordless picture book. Target word comprehension was assessed before and after two readings of the story. Phonological awareness predicted incidental word learning but phonological memory did not. The influence of phonological awareness and phonological memory on word learning may be dependent on the demands of the word learning task.     

Perceptual and academic patterns of learning-disabled/gifted students.

This research explored ways gifted children with learning disabilities perceive and recall auditory and visual input and apply this information to reading, mathematics, and spelling. 24 learning-disabled/gifted children and a matched control group of normally achieving gifted students were tested for oral reading, word recognition and analysis, listening comprehension, and spelling. In mathematics, they were tested for numeration, mental and written computation, word problems, and numerical reasoning. To explore perception and memory skills, students were administered formal tests of visual and auditory memory as well as auditory discrimination of sounds. Their responses to reading and to mathematical computations were further considered for evidence of problems in visual discrimination, visual sequencing, and visual spatial areas. Analyses indicated that these learning-disabled/gifted students were significantly weaker than controls in their decoding skills, in spelling, and in most areas of mathematics. They were also significantly weaker in auditory discrimination and memory, and in visual discrimination, sequencing, and spatial abilities. Conclusions are that these underlying perceptual and memory deficits may be related to students' academic problems.     

Perceptual learning of noise vocoded words: effects of feedback and lexicality

Speech comprehension is resistant to acoustic distortion in the input, reflecting listeners' ability to adjust perceptual processes to match the speech input. This adjustment is reflected in improved comprehension of distorted speech with experience. For noise vocoding, a manipulation that removes spectral detail from speech, listeners' word report showed a significantly greater improvement over trials for listeners that heard clear speech presentations before rather than after hearing distorted speech (clear-then-distorted compared with distorted-then-clear feedback, in Experiment 1). This perceptual learning generalized to untrained words suggesting a sublexical locus for learning and was equivalent for word and nonword training stimuli (Experiment 2). These findings point to the crucial involvement of phonological short-term memory and top-down processes in the perceptual learning of noise-vocoded speech. Similar processes may facilitate comprehension of speech in an unfamiliar accent or following cochlear implantation.     

Improving reading and writing learning in underprivileged pluri‐ethnic settings

Background: Many studies carried out in first language contexts tend to demonstrate the positive effects of activity programmes aimed at (1) developing metaphonological abilities and (2) developing language skills through active story listening on learning to read and to spell by first‐grade students. Aims: This study seeks to extend previous findings by (a) including children, the majority of whom have French as a second language, who attend plurilingual schools and have not been included in previous studies, and (b) providing training based on three essential principles shared by the two kinds of programmes: integrating activities into realistic literacy practice contexts; encouraging active student participation through tasks which very often require problem solving; and tackling, one after the other, different kinds of operations or strategies. Sample: Three groups of students were created out a pool of 202 children enrolled in nine first‐grade classes in three underprivileged pluri‐ethnic schools. The control group was composed of 46 students who received typical, first‐grade methods for teaching reading and spelling. Experimental group 1 (DMPA), 91 students, received a training programme aimed at metaphonological abilities development. Experimental group 2 (DLS), 65 students, received a training intended to develop language skills through active story listening and production. Method: The students from the three groups were evaluated at the beginning (metaphonological task I, pre‐reading task) and at the end (metaphonological task II, word recognition task, text comprehension task, word spelling task) of their first year in elementary school. Results: The programme for the development of metaphonological abilities enabled DMPA group students to obtain significantly higher scores than the control group on metaphonological task II and word recognition task. The DMPA group children also did significantly better than the control and the DLS groups on the word spelling task. However, the DLS group, who benefited from language skills development activities, also progressed in that they obtained significantly better results than the control group in the word recognition task. Moreover, at the end of grade one, there was no difference in the scores obtained by the groups on a comprehension questionnaire administered after the reading of the narrative text. Conclusion: The word reading skills of first‐grade children in underprivileged pluriethnic settings can be improved through activities aimed at metaphonological abilities development or language skills development by means of active story listening and production. On the other hand, in order to develop word spelling abilities, the development of metaphonological abilities was more effective. Lastly, further research should seek to improve understanding of the absence of effects of either learning programme on narrative text comprehension.     

学龄早期词语阅读习得对阅读理解能力的预测作用：初始水平和发展速率的贡献

本研究测查了183名儿童在一年级期间（学年初,学年中,学年末）的词语阅读能力（词语解码,阅读流畅性）及一年级末和二年级末的阅读理解能力,采用分层线性模型估计每名儿童在一年级期间词语阅读能力的初始水平和发展速率,以考察二者对阅读理解能力的独立预测作用。结果表明,词语识别的初始水平和增长速率都能独立预测一年级末和二年级末的阅读理解能力,阅读流畅性的初始水平和增长速率只能独立预测二年级末的阅读理解能力,但可以预测阅读理解能力在一年级到二年级的增长。     

Bridging ears and eyes when learning spoken words: On the effects of bilingual experience at 30 months

From the very first moments of their lives, infants selectively attend to the visible orofacial movements of their social partners and apply their exquisite speech perception skills to the service of lexical learning. Here we explore how early bilingual experience modulates children's ability to use visible speech as they form new lexical representations. Using a cross‐modal word‐learning task, bilingual children aged 30 months were tested on their ability to learn new lexical mappings in either the auditory or the visual modality. Lexical recognition was assessed either in the same modality as the one used at learning (‘same modality’ condition: auditory test after auditory learning, visual test after visual learning) or in the other modality (‘cross‐modality’ condition: visual test after auditory learning, auditory test after visual learning). The results revealed that like their monolingual peers, bilingual children successfully learn new words in either the auditory or the visual modality and show cross‐modal recognition of words following auditory learning. Interestingly, as opposed to monolinguals, they also demonstrate cross‐modal recognition of words upon visual learning. Collectively, these findings indicate a bilingual edge in visual word learning, expressed in the capacity to form a recoverable cross‐modal representation of visually learned words.     

The effects of slowed speech on auditory comprehension in aphasia

The present study investigates the effects of slowed speech on auditory comprehension in aphasia. Specifically, an attempt was made to isolate the effects of added time on comprehension at the language processing stages of auditory perception, by increasing the duration of the vowel segments in each word; word recognition and semantic analysis, by adding silences between words; and syntactic analysis, by adding silences at constituent phrase boundaries. Sentences were also read at a slow rate to see the effects of naturally slowed speech on sentence comprehension. Test sentences consisted of simple active and passive declarative sentences, and complex sentences with embedded medial and final relative clauses. Sentences were either semantically reversible or nonreversible. Thirty-four aphasic patients who varied in both severity and type of aphasia were tested on a picture verification task. Results indicated that slowing facilitated language comprehension significantly only in the syntactic condition. Neither syntactic complexity nor semantic reversibility interacted with slowed speech to facilitate auditory language comprehension. Further, it was only the Wernicke's aphasics who showed significant improvement with time added at constituent boundaries. These results suggest that time alone does not facilitate language comprehension in aphasia, but that rather it is the interaction of time with syntactic processing which improves comprehension.     

Does input influence uptake? Links between maternal talk,processing speed and vocabulary size in Spanish‐learning children

It is well established that variation in caregivers’ speech is associated with language outcomes, yet little is known about the learning principles that mediate these effects. This longitudinal study (n = 27) explores whether Spanish‐learning children's early experiences with language predict efficiency in real‐time comprehension and vocabulary learning. Measures of mothers’ speech at 18 months were examined in relation to children's speech processing efficiency and reported vocabulary at 18 and 24 months. Children of mothers who provided more input at 18 months knew more words and were faster in word recognition at 24 months. Moreover, multiple regression analyses indicated that the influences of caregiver speech on speed of word recognition and vocabulary were largely overlapping. This study provides the first evidence that input shapes children's lexical processing efficiency and that vocabulary growth and increasing facility in spoken word comprehension work together to support the uptake of the information that rich input affords the young language learner.     

言语产生的同音词表征：模型争论与再思

言语产生和言语理解都涉及同音词在通达过程的表征。言语产生研究中,Levelt和Caramazza分别从通达的两阶段分离激活和独立网络模型推出了同音词的分享和独立表征模型,并用语言实验的频率效应和病人的语音治疗效应给予检验。本文评述了研究的新进展,探讨了同音词表征模型的分歧,认为同音词词汇表征与语言差异、加工范式、知觉通道等有关。从言语理解（言语知觉和词汇再认）的研究表明,这两种表征模型可能难以概括同音词尤其是汉语同音词的表征。本文根据言语理解研究的新近发现建议了一些可能的表征模型。