scholarly journals A meta-analysis of infants' word-form recognition

2020 ◽  
Author(s):  
M. Julia Carbajal ◽  
Sharon Peperkamp ◽  
Sho Tsuji

Recognizing word forms is an important step on infants’ way towards mastering their native language. The present study takes a meta-analytic approach to assess overarching questions on the literature of early word-form recognition. Specifically, we investigated the extent to which there is cross-linguistic evidence for an early recognition lexicon, and how it may be influenced by infant age, language background, and familiarity of the selected stimuli (approximated by parent-reported word knowledge). Our meta-analysis - with open data access on metalab.stanford.edu - was based on 32 experiments in 16 different published or unpublished studies on infants 5-15 months of age. We found an overall significant effect of word-form familiarity on infants’ responses This effect increased with age and was higher for infants learning Romance languages than other languages. We further found that younger, but not older, infants showed higher effect sizes for more familiar word lists. These insights should help researchers plan future studies on word-form recognition.

2021 ◽  
Vol 12 (6) ◽  
pp. 948-954
Author(s):  
Yeqiu Zhu ◽  
Yuxin Huang

The present study explores the effect of word exposure frequency on Chinese advanced EFL learners’ incidental acquisition of three aspects of word knowledge (i.e., word form, word class and word meaning). The participants were 20 Chinese English postgraduates who read two chapters of an original English novel and took four vocabulary tests. The target words were 20 pseudo-words created to replace the words that naturally occurred from one to twenty times in the text. The results show that word exposure frequency has a significant effect on IVA through reading, exerting the strongest effect on word form recognition and the weakest on word meaning recall. The study also finds that seven is the threshold value for significant word gain growth and that local word frequency also influences learners’ IVA.


2015 ◽  
Vol 23 (1) ◽  
pp. 86-93 ◽  
Author(s):  
Kevin S. Cahill ◽  
Paul C. McCormick ◽  
Allan D. Levi

The risk of postoperative cancer following the use of recombinant human bone morphogenetic protein (BMP)–2 in spinal fusion is one potential complication that has received significant interest. Until recently, there has been little clinical evidence to support the assertion of potential cancer induction after BMP use in spinal surgery. This report aims to summarize the findings from clinical data available to date from the Yale University Open Data Access (YODA) project as well as more recently published large database studies regarding the association of BMP use in spinal fusion and the risk of postoperative cancer. A detailed review was based on online databases, primary studies, FDA reports, and bibliographies of key articles for studies that assessed the efficacy and safety of BMP in spinal fusion. In an analysis of the YODA project, one meta-analysis detected a statistically significant increase in cancer occurrence at 24 months but not at 48 months, and the other meta-analysis did not detect a significant increase in postoperative cancer occurrence. Analysis of 3 large health care data sets (Medicare, MarketScan, and PearlDiver) revealed that none were able to detect a significant increase in risk of malignant cancers when BMP was used compared with controls. The potential risk of postoperative cancer formation following the use of BMP in spinal fusion must be interpreted on an individual basis for each patient by the surgeon. There is no conclusive evidence that application of the common formulations of BMP during spinal surgery results in the formation of cancer locally or at a distant site.


Infancy ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 369-387
Author(s):  
Maria Julia Carbajal ◽  
Sharon Peperkamp ◽  
Sho Tsuji

Author(s):  
Pui Fong Kan

Abstract The purpose of this article is to look at the word learning skills in sequential bilingual children—children who learn two languages (L1 and L2) at different times in their childhood. Learning a new word is a process of learning a word form and relating this form to a concept. For bilingual children, each concept might need to map onto two word forms (in L1 and in L2). In case studies, I present 3 typically developing Hmong-English bilingual preschoolers' word learning skills in Hmong (L1) and in English (L2) during an 8-week period (4 weeks for each language). The results showed gains in novel-word knowledge in L1 and in L2 when the amount of input is equal for both languages. The individual differences in novel word learning are discussed.


2020 ◽  
Vol 28 (1) ◽  
pp. 181-195
Author(s):  
Quentin Vanhaelen

: Computational approaches have been proven to be complementary tools of interest in identifying potential candidates for drug repurposing. However, although the methods developed so far offer interesting opportunities and could contribute to solving issues faced by the pharmaceutical sector, they also come with their constraints. Indeed, specific challenges ranging from data access, standardization and integration to the implementation of reliable and coherent validation methods must be addressed to allow systematic use at a larger scale. In this mini-review, we cover computational tools recently developed for addressing some of these challenges. This includes specific databases providing accessibility to a large set of curated data with standardized annotations, web-based tools integrating flexible user interfaces to perform fast computational repurposing experiments and standardized datasets specifically annotated and balanced for validating new computational drug repurposing methods. Interestingly, these new databases combined with the increasing number of information about the outcomes of drug repurposing studies can be used to perform a meta-analysis to identify key properties associated with successful drug repurposing cases. This information could further be used to design estimation methods to compute a priori assessment of the repurposing possibilities.


2013 ◽  
Vol 56 (6) ◽  
pp. 1845-1856 ◽  
Author(s):  
Karla K. McGregor ◽  
Ulla Licandro ◽  
Richard Arenas ◽  
Nichole Eden ◽  
Derek Stiles ◽  
...  

Purpose To determine whether word learning problems associated with developmental language impairment (LI) reflect deficits in encoding or subsequent remembering of forms and meanings. Method Sixty-nine 18- to 25-year-olds with LI or without (the normal development [ND] group) took tests to measure learning of 16 word forms and meanings immediately after training (encoding) and 12 hr, 24 hr, and 1 week later (remembering). Half of the participants trained in the morning, and half trained in the evening. Results At immediate posttest, participants with LI performed more poorly on form and meaning than those with ND. Poor performance was more likely among those with more severe LI. The LI–ND gap for word form recall widened over 1 week. In contrast, the LI and ND groups demonstrated no difference in remembering word meanings over the week. In both groups, participants who trained in the evening, and therefore slept shortly after training, demonstrated greater gains in meaning recall than those who trained in the morning. Conclusions Some adults with LI have encoding deficits that limit the addition of word forms and meanings to the lexicon. Similarities and differences in patterns of remembering in the LI and ND groups motivate the hypothesis that consolidation of declarative memory is a strength for adults with LI.


2013 ◽  
Vol 220 (1) ◽  
pp. 205-219 ◽  
Author(s):  
Julian Caspers ◽  
Nicola Palomero-Gallagher ◽  
Svenja Caspers ◽  
Axel Schleicher ◽  
Katrin Amunts ◽  
...  

2015 ◽  
Vol 10 (3) ◽  
pp. 313-338 ◽  
Author(s):  
Clara Cohen

A small but growing body of research on English and Dutch has found that pronunciation of affixes in a word form is sensitive to paradigmatic probability – i.e., the probability of using that form over other words in the same morphological paradigm. Yet it remains unclear (a) how paradigmatic probability is best measured; (b) whether an increase in paradigmatic probability leads to phonetic enhancement or reduction; and (c) by what mechanism paradigmatic probability can affect pronunciation. The current work examines pronunciation variation of Russian verbal agreement suffixes. I show that there are two distinct patterns of variation, corresponding to two different measures of paradigmatic probability. One measure, pairwise paradigmatic probability, is associated with a pronunciation pattern that resembles phonetic enhancement. The second measure, lexeme paradigmatic probability, can show enhancement effects, but can also yield reduction effects more similar to those of contextual probability. I propose that these two patterns can be explained in an exemplar model of lexical storage. Reduction effects are the consequence of faster retrieval and encoding of an articulatory target, while effects that resemble enhancement result when the pronunciation target of both members of a pair of competing word forms is shifted towards the more frequent of two.


2018 ◽  
Author(s):  
Cecilia Stenfors ◽  
Stephen Charles Van Hedger ◽  
Kathryn E Schertz ◽  
Francisco Calvache Meyer ◽  
Karen Smith ◽  
...  

Interactions with natural environments and nature-related stimuli have been found to be beneficial to cognitive performance, in particular on executive cognitive tasks with high demands on directed attention processes. However, results vary across different studies.The aim of the present study was to perform a meta-analysis of all our published and unpublished studies testing the effect of different interactions with nature versus urban/built control environments, on an executive test with high demands on directed attention: the backwards digit span (BDS) task. Specific aims were to evaluate the effect of nature versus urban environment interactions on BDS across different exposure types (e.g. being in real environments, or viewing videos, images, or listening to sounds) and disentangle the effects of testing order (i.e. practice with repeated testing) and the role of affective changes on BDS performance. We also reviewed the literature and compared and contrasted our meta-analysis with results from other studies. Results from our meta-analysis comprising 12 studies (N=567 participants) showed significant environment-by-time interactions with beneficial effects of nature compared to urban environments on BDS performance. This effect was magnified after parceling out initial practice effects on the BDS. Changes in positive or negative affect did not mediate the beneficial effects of nature on BDS performance. These results mirrored effects that we reviewed from outside of our laboratories. Uncontrolled and confounding order effects may explain some of the inconsistent findings in the literature. In all, these results highlight the robustness of the effects of natural environments on cognition when confounding order effects have been considered, and also provide a more nuanced account of when a nature intervention will be most effective.


2019 ◽  
Vol 31 (4) ◽  
pp. 231-248
Author(s):  
Anastasia I. Voronkova

This article contains a meta-analysis of representations of the main models of recruiting women into the field of professional business in European, English language and Russian periodical press. The aim of this study is to systemize the theoretical-conceptual and practical aspects of reproducing certain means of recruitment into the economic elite, as well as the restrictions which women face when choosing a professional development trajectory. A meta-description of the career paths of those women who established themselves in the entrepreneurial field allows for reconstructing women’s scenarios of choosing and forwarding their career in business, as well as for constructing a typology of narrative strategies which affect women’s choices in professional development trajectories in the context of different countries. The empirical basis for this study consists of full-text articles from periodical and serial publications in leading foreign and domestic academic journals. Using critical discourse analysis of articles and open data allows for reconstructing the significance of gender aspects when it comes to choosing a career in business, as well as for tracing the influence of the context of developing female entrepreneurship on recruitment mechanisms in various countries. The results of the empirical study show that the representation of mechanisms for recruiting women into the professional environment is differentiated in different ways in English language and Russian periodic press. Peculiarities inherent to different countries are one of the factors which affect the development of business trajectories specific to certain regions. In Europe a discourse-system education prevails as the most adequate means for establishing oneself in the economic field. Eastern Asian countries mostly focus on the immigration process. In Russia we see gender labeled strategies in leadership positions. The manner in which recruitment mechanisms are pitched also varies: European articles mostly focus on positive trends and representing the discourse of successful business cases, while Russian periodical press concentrates on the obstacles and restrictions women have to deal with when choosing a career path. The narratives used for reconstructing the mechanisms for recruiting women into the realm of business, together with the terminology chosen by the authors of this article, confirm a positive representation of female entrepreneurship in Europe, an ambiguous nature of the business environment in countries of the Far East, and a certain degree of underdevelopment in Russia’s segment.


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