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161.
We probed simultaneous French–Spanish bilinguals for the perception of Spanish lexical stress using three tasks, two short-term memory encoding tasks and a speeded lexical decision. In all three tasks, the performance of the group of simultaneous bilinguals was intermediate between that of native speakers of Spanish on the one hand and French late learners of Spanish on the other hand. Using a composite stress ‘deafness’ index measure computed over the results of the three tasks, we found that the performance of the simultaneous bilinguals is best fitted by a bimodal distribution that corresponds to a mixture of the performance distributions of the two control groups. Correlation analyses showed that the variables explaining language dominance are linked to early language exposure. These findings are discussed in light of theories of language processing in bilinguals. 相似文献
162.
Emmanuel Desouhant Simon Navel Emmeline Foubert Deborah Fischbein Marc Théry Carlos Bernstein 《Animal cognition》2010,13(3):535-543
Visual cues are known to be used by numerous animal taxa to gather information on quality and localisation of resources. Because
environmental lighting can interfere with the spectral features of visual cues, the specific characteristics of the colour
signals that promote forager decision and learning are still not known in the majority of insects (excepted in bees). We analysed
the effect of previous experience on the use of visual information by the wasp Venturia canescens, a parasitoid of pyralidae, in the context of host searching. These parasitoids search for hosts concealed in several fruit
species, so visual cues from the host microhabitat could play a key role in host finding. We also investigated the type of
visual cues on which wasps based their decision. We tested whether wasps are able to associate an achromatic cue (brightness)
or a chromatic one (hue, i.e. dominant wavelength and/or chroma) with the presence of hosts. Our results show that in the
context of host foraging, chromatic cues are more reliable than brightness in achieving the associative learning process.
Therefore, understanding the behavioural ecology of foraging should make use of the knowledge about the visual information
used. 相似文献
163.
164.
Paweł Mandera Emmanuel Keuleers Marc Brysbaert 《Quarterly journal of experimental psychology (2006)》2015,68(8):1623-1642
Subjective ratings for age of acquisition, concreteness, affective valence, and many other variables are an important element of psycholinguistic research. However, even for well-studied languages, ratings usually cover just a small part of the vocabulary. A possible solution involves using corpora to build a semantic similarity space and to apply machine learning techniques to extrapolate existing ratings to previously unrated words. We conduct a systematic comparison of two extrapolation techniques: k-nearest neighbours, and random forest, in combination with semantic spaces built using latent semantic analysis, topic model, a hyperspace analogue to language (HAL)-like model, and a skip-gram model. A variant of the k-nearest neighbours method used with skip-gram word vectors gives the most accurate predictions but the random forest method has an advantage of being able to easily incorporate additional predictors. We evaluate the usefulness of the methods by exploring how much of the human performance in a lexical decision task can be explained by extrapolated ratings for age of acquisition and how precisely we can assign words to discrete categories based on extrapolated ratings. We find that at least some of the extrapolation methods may introduce artefacts to the data and produce results that could lead to different conclusions that would be reached based on the human ratings. From a practical point of view, the usefulness of ratings extrapolated with the described methods may be limited. 相似文献
165.
Emmanuel Keuleers David A. Balota 《Quarterly journal of experimental psychology (2006)》2015,68(8):1457-1468
This paper introduces and summarizes the special issue on megastudies, crowdsourcing, and large datasets in psycholinguistics. We provide a brief historical overview and show how the papers in this issue have extended the field by compiling new databases and making important theoretical contributions. In addition, we discuss several studies that use text corpora to build distributional semantic models to tackle various interesting problems in psycholinguistics. Finally, as is the case across the papers, we highlight some methodological issues that are brought forth via the analyses of such datasets. 相似文献
166.
This study compared the perceptions of 376 Japanese and 191 Canadian consumers concerning the importance of different product attributes for categories of products at various stages of globalization. There was less multivariate statistical difference between the two countries for those products at a more advanced stage of globalization (consumer electronics and clothing vs. food). The joint effects of the degree of familiarity with the category of product and the country of the respondent on the importance of the product attributes were tested. The effect of familiarity was found to result in a significant statistical multivariate difference for the clothing category only. The observed statistical power of the effect of country of respondent confirmed that more statistical difference was apparent for the least globalized product. No multivariate significant statistical interaction was found between familiarity and country of respondent. Using a multi-attribute model, the evaluation of the three categories of product was computed for seven different countries of manufacture. Comparison of the total scores of each country for each product category for the Japanese and the Canadian samples confirmed that the most globalized product showed least difference in its evaluation between countries of manufacture. A well-known strong bias toward domestic products was, however, observed in both samples. 相似文献
167.
The aim of this paper is to examine specific features of modern individualistic societies that contribute to "emotions" and "cognitions" becoming a matter of privacy. Although some behavior analysts identify emotions and cognitions as "private events," we argue with Skinner (1945) that cognitions and emotions are relations among events and that their origin is in public events in the contingencies of reinforcement maintained by other people. Guided by Elias (1939/1996), we suggest that the shift from feudal economies to market economies involved the increasing individualization of society's members. This individualizing process includes the socially maintained contingencies that bring some verbal responses under control of private stimulation and reduce the magnitude of some verbal responses to a covert level. Behavioral relations in which either stimuli or responses (or both) cannot be observed by others set the stage for a concept of "privacy." Changes in societal contingencies that gave rise to individualization and the attribution of privacy to cognitions and emotions are suggested to include the following: (a) increasing frequency of individual consequences that have no apparent or direct relevance to the group; (b) increasing numbers of concurrent contingencies and choice requirements; (c) conflicts between immediate and delayed consequences for the individual; and (d) conflicts between consequences for the individual and for the group. 相似文献
168.
This study investigates vocal imitation of prosodic contour in ongoing spontaneous interaction with 10- to 13-week-old infants. Audio recordings from naturalistic interactions between 20 mothers and infants were analyzed using a vocalization coding system that extracted the pitch and duration of individual vocalizations. Using these data, the authors categorized a sample of 1,359 vocalizations on the basis of 7 predetermined contours. Pairs of identical successive vocalizations were considered to be imitations if they involved both partners or repetitions if they were produced by the same partner. Results show that not only do mothers and infants imitate and repeat prosodic contour types in the course of vocal interaction but they do so selectively. Indeed, different contours are imitated and repeated by each partner. These findings suggest that imitation and repetition of prosodic contours have specific functions for communication and vocal development in the 3rd month of life. 相似文献
169.
The issue of South?CNorth migration, especially Africa?CEuropean Union (EU) migration, has moved to the center stage of international development debate. Unfortunately, however, interests and arguments by policy-makers, development agencies, and citizens of the EU mainly focus on the consequences of migration on the ??receiving?? societies. The real causes of migration from Africa and migrants?? contribution to the social and economic development of both the ??sending?? and ??receiving?? countries have not been objectively discussed. Provision of labor to EU member countries, remittances, and financial transfers to and investments made by African migrants in their respective home countries are essential elements in the African?CEU migration and development cooperation debate. It is estimated that South?CNorth migrants?? remittances to developing countries increased from US$2 billion in 1970 to US$71 billion in 2001. Moreover, financial flows emanating from African migrants in the developed countries significantly contribute to the development of the continent. In order to concretize and objectify the discussion, a socio-economic survey was conducted on a representative sample of Ghanaian migrants and their families in the Flemish Community in Belgium. Extensive literature review on migration, administration of questionnaires to Ghanaians resident in Flanders, Belgium, and consultations with African and international experts on migration and international development cooperation were the methods used for this investigation. The paper identifies and analyzes the factors that ??push?? and ??pull?? Ghanaians to migrate to Belgium, the EU, and the developed countries in general. The socio-economic situation of Ghanaian migrants in Flanders and their contribution to the sustainable development of Belgium, the EU, and Ghana are rigorously analyzed. Furthermore, the challenges posed by South?CNorth migration are identified and appropriate and effective win-win mitigation strategies proposed for redressing the problematic in a sustainable way. 相似文献
170.
We present a new database of lexical decision times for English words and nonwords, for which two groups of British participants
each responded to 14,365 monosyllabic and disyllabic words and the same number of nonwords for a total duration of 16 h (divided
over multiple sessions). This database, called the British Lexicon Project (BLP), fills an important gap between the Dutch
Lexicon Project (DLP; Keuleers, Diependaele, & Brysbaert, Frontiers in Language Sciences. Psychology, 1, 174, 2010) and the English Lexicon Project (ELP; Balota et al., 2007), because it applies the repeated measures design of the DLP to the English language. The high correlation between the BLP
and ELP data indicates that a high percentage of variance in lexical decision data sets is systematic variance, rather than
noise, and that the results of megastudies are rather robust with respect to the selection and presentation of the stimuli.
Because of its design, the BLP makes the same analyses possible as the DLP, offering researchers with a new interesting data
set of word-processing times for mixed effects analyses and mathematical modeling. The BLP data are available at and as Electronic Supplementary Materials. 相似文献