We report a new study testing our proposal that word learning may be best explained as an approximate form of Bayesian inference (Xu & Tenenbaum, in press). Children are capable of learning word meanings across a wide range of communicative contexts. In different contexts, learners may encounter different sampling processes generating the examples of word-object pairings they observe. An ideal Bayesian word learner could take into account these differences in the sampling process and adjust his/her inferences about word meaning accordingly. We tested how children and adults learned words for novel object kinds in two sampling contexts, in which the objects to be labeled were sampled either by a knowledgeable teacher or by the learners themselves. Both adults and children generalized more conservatively in the former context; that is, they restricted the label to just those objects most similar to the labeled examples when the exemplars were chosen by a knowledgeable teacher, but not when chosen by the learners themselves. We discuss how this result follows naturally from a Bayesian analysis, but not from other statistical approaches such as associative word-learning models. 相似文献
Cognitive science is an interdisciplinary enterprise. This review highlights how the philosophical notion of a 'sortal'--a concept that provides principles of individuation and principles of identity - has been introduced into cognitive developmental psychology. Although the notion 'sortal' originated in metaphysics, importing it into the cognitive sciences has bridged a gap between philosophical and psychological discussions of concepts and has generated a fruitful and productive research enterprise. As I review here, the sortal concept has inspired several lines of empirical work in the past decade, including the study of object individuation; object identification; the relationship between language and acquisition of kind concepts; the representational capacities of non-human primates; object-based attention and cognitive architecture; and the relationship between kind concepts and individual concepts. 相似文献
The present study draws on theories and prior research on corporate social responsibility (CSR) and gender attitudes (i.e., sexism) to understand young Chinese peoples’ responses toward women-empowering advertising (i.e., femvertising). We conducted two experiments in which male and female Chinese college students (232 in Study 1 and 231 in Study 2) were exposed to either women-empowering or control advertisements (traditional ad in Study 1 and gender-irrelevant ad in Study 2) and reported their attitudes about the ads as well as their purchase intentions toward the advertised products (shampoo and smartphone, respectively). In line with our predictions, both experiments showed that messaging about women’s empowerment in advertising can induce perceptions of CSR, thereby increasing favorable responses such as enhanced positive ad attitudes and increased purchase intentions toward the advertised products. Moreover, hostile sexism was negatively associated with consumer responses toward femvertising such that the lower participants’ hostile sexism, the more positive ad attitudes and stronger purchase intent participants they reported. However, benevolent sexism was not predictive of consumer responses toward femvertising. These results offer insights into people’s responses toward women-empowering advertisements and also have practical implications for advertisers and marketers who are interested in using such an advertising tactic to promote products and services.
