Biomedical subjects

Gil Diesendruck

Publications and source records attributed to Gil Diesendruck.

10 recordsLinked to original sources

PubMed2006

Young children's expectation of competence in word learning.

The study investigates a social-pragmatic expectation that may motivate children to search their environment when asked for the referent of a novel label. In one experimental phase, the experimenter presented 40 two-year-olds a bucket containing a novel object and another visible object--either familiar or novel. The experimenter either asked children for the referent of a novel label, or a non-specific question. In a second experimental phase, all children saw a bucket containing a novel object, and two visible objects--one familiar and one novel. We found that, in both phases, children tended to bypass the visible novel object, preferring instead to search inside the bucket for the referent of a novel label. These findings are consistent with an expectation--dubbed the EXPECTATION OF COMPETENCE--that if an adult asks a child for the referent of a name, it is because the adult likely believes that the child knows that name, and thus the child can expect to be capable of finding its referent.

Adult↗

PubMed2005

The principles of conventionality and contrast in word learning: an empirical examination.

In Study 1, 4-year-olds avoided 2 names for an object when exposed to a common or a proper noun in a puppet's presence or to a common noun in a puppet's absence, but not when exposed to a proper noun in a puppet's absence. In Study 2, 3-year-olds avoided 2 names for an object when the requester for the referent of a second label in a different language was bilingual and present during naming, but not when the speaker was bilingual but absent or monolingual. Study 3 followed up on the results of the first 2 studies. When children could assume that the puppet knew the name the experimenter used, they inferred that the puppet's use of a different name implied a different referential intent.

Child, Preschool↗

PubMed2005

the role of dimensional distinctiveness in children's and adults' artifact categorization.

There are conflicting results as to whether preschool children categorize artifacts on the basis of physical or functional similarity. The present study investigated the effect of the relative distinctiveness of these dimensions in children's categorization. In a physical-distinctive condition, preschool children and adults were initially asked to categorize computer-animated artifacts whose physical appearances were more distinctive than their functions. In a function-distinctive condition, the functional dimension of objects was more distinctive than their physical appearances. Both conditions included a second stage of categorization in which both dimensions were equally distinctive. Participants in a control condition performed only this stage of categorization. Adults in all conditions and stages consistently categorized by functional similarity. In contrast, children's categorization was affected by the relative distinctiveness of the dimensions. Children may not have a priori specific beliefs about how to categorize novel artifacts, and thus may be more susceptible to contextual factors.

Adolescent↗

PubMed2004

Two-year-olds' sensitivity to speakers' intent: an alternative account of Samuelson and Smith.

Seventy-two 2-year-olds participated in a study designed to test two competing accounts of the effect of contextual change on children's ability to learn a word for an object. The mechanistic account hypothesizes that any change in context that highlights a target object will lead to word learning; the social-pragmatic account maintains that a change in context must be perceived as relevant to the speaker's communicative intentions. Consistent with the latter account, we found that children learned the word when a change in context was intentional but not when it was accidental, and children failed to learn the word for the highlighted object when a speaker naive to the preceding context named the object.

Child, Preschool↗

PubMed2003

The influence of language and socioeconomic status on children's understanding of false belief.

Study 1 investigated whether differences in the lexical explicitness with which languages express false belief influence children's performance on standard false belief tasks. Preschoolers speaking languages with explicit terms (Turkish and Puerto Rican Spanish) were compared with preschoolers speaking languages without explicit terms (Brazilian Portuguese and English) on questions assessing false belief understanding either specifically (the think question) or more generally (the look for question). Lexical explicitness influenced responses to the think question only. Study 2 replicated Study 1 with groups of both speakers differing in socioeconomic status (SES). A local effect of explicitness was found again as well as a more general influence of SES. The findings are discussed with regard to possible relations among language, SES, and understanding of mind.

Attention↗

PubMed2003

Children's reliance on creator's intent in extending names for artifacts.

When children learn a name for a novel artifact, they tend to extend the name to other artifacts that share the same shape--a phenomenon known as the shape bias. The present studies investigated an intentional account of this bias. In Study 1, 3-year-olds were shown two objects of the same shape, and were given an explanation for why the objects were the same shape even though they were intended to be different kinds. The shape bias disappeared in children provided with this explanation. In Study 2, 3-year-olds were shown triads of objects, and were either given no information about the function of a named target object, told the function that object could fulfill, or told the functions all three objects were intended to fulfill. Only in the third condition did children overcome a shape bias in favor of a function bias when extending the name of the target object. These findings indicate that 3-year-olds' shape bias results from intuitions about what artifacts were intended to be.

Child, Preschool↗

PubMed2002

The Spanish ser/estar distinction in bilingual children's reasoning about human psychological characteristics.

Children's reasoning about the stability of human psychological characteristics was investigated in relation to the obligatory distinction between the Spanish verb forms ser and estar (which convey different information about the stability of characteristics) and the corresponding English form to be. Participants (85 bilingual children, ages 6 to 10 years) were interviewed to determine (a) whether the ser/estar distinction is relevant to reasoning about the stability of human characteristics and (b) whether beliefs about the stability of psychological characteristics relate to differences in the use of ser and estar to describe and explain social events. Children treated ser and to be as more likely than estar to convey the stability of psychological characteristics. Children who tended to endorse stable views of psychological characteristics were especially likely to use the ser form in their descriptions and explanations.

Child↗

PubMedDate not supplied

How specific is the shape bias?

Children tend to extend object names on the basis of sameness of shape, rather than size, color, or material-a tendency that has been dubbed the "shape bias." Is the shape bias the result of well-learned associations between words and objects? Or does it exist because of a general belief that shape is a good indicator of object category membership? The present three studies addressed this debate by exploring whether the shape bias is specific to naming. In Study 1, 3-year-olds showed the shape bias both when asked to extend a novel name and when asked to select an object of the same kind as a target object. Study 2 found the same shape bias when children were asked to generalize properties relevant to category membership. Study 3 replicated the findings from Study 1 with 2-year-olds. These findings suggest that the shape bias derives from children's beliefs about object kinds and is not the product of associative learning.

Association Learning↗

PubMedDate not supplied

Children's use of syntactic and pragmatic knowledge in the interpretation of novel adjectives.

In Study 1, English-speaking 3- and 4-year-olds heard a novel adjective used to label one of two objects and were asked for the referent of a different novel adjective. Children were more likely to select the unlabeled object if the two adjectives appeared prenominally (e.g., "a very DAXY dog") than as predicates (e.g., "a dog that is very DAXY"). Study 2 revealed that this response occurred only when both adjectives were prenominal. Study 3 replicated Study 1 with Hebrew-speaking 3- and 4-year-olds, even though in Hebrew both types of adjectives appear postnominally. Preschoolers understand that prenominal adjectives imply a restriction of the reference of nouns, and this knowledge motivates a contrastive pragmatic inference regarding the referents of different prenominal adjectives.

Child, Preschool↗

PubMedDate not supplied

The role of language, appearance, and culture in children's social category-based induction.

Four studies examined whether Israeli 5-year-olds (N = 88) and adults (N = 48) drew inferences about psychological properties based on a character's social category, personality trait, or physical appearance trait. Study 1 revealed that while children drew inferences mostly by social category, adults did it by personality trait. Study 2 showed that the children's pattern was not due to how the categorical information was conveyed. Studies 3 and 4 demonstrated that for kindergarteners, labels, not appearances, are determinant of the inductive potential of social categories. Studies indicated that "Jew" and "Arab" were the most inductively powerful social categories for both children and adults. The results carry implications for the roles of language, appearances, and culture in the conceptualization of "human kinds."

Adult↗