Acquisition of structured knowledge without instruction: the relational schema induction paradigm

Participants learned about a structure without explicit explanation, either by using relational schema induction (G. S. Halford, J. D. Bain, M. T. Maybery, & G. Andrews, 1998), which requires completion of instances of the structure, or by memorizing instances. Emergence of structured knowledge over trials was assessed by ability to map the structure to an isomorph and thereby to generate novel instances of the structure (the generativity test). Schema induction was found to be an effective way to induce acquisition of the structure, and the generativity test was a sensitive measure of structure acquisition, as indicated by converging measures. Memorization produced only low levels of structured knowledge. A conception of structured knowledge acquisition based on relational schema induction is proposed.     

Building Communities in Tense Times: Fostering Connectedness Between Cultures and Generations through Community Arts

The worldwide upsurge in social polarizations generates intercommunity tensions that challenge the social fabric of urban neighborhoods and undermine the relationships between their members. Because community arts can foster the creation of connections between people that would not have been in contact otherwise, they are often perceived as being powerful tools to foster community resilience. Through a multiple case study approach, this article describes how three community arts projects, carried out in two socioeconomically deprived neighborhoods of Montreal (Canada), influenced the social relationships between participants from diverse ethnocultural backgrounds and generations. Using participant observation and arts-based data collection methods (photography, video, and arts productions), the authors examine how the three projects illustrate (a) the interactive processes at play, (b) the transmission and hybridization of stories and images of adversity and resiliency, and (c) the access to a collective voice.     

The Role of Trait Self-Objectification in Smoking among College Women

Self-objectification, which is the internalization of an observer’s perspective of the self, has been related to restrained and disordered eating patterns and depression. Because disordered eating and depression are known co-factors for smoking, we tested the possible involvement of trait self-objectification in the relationship between these mental health dimensions and smoking in a sample of 130 college women smokers and non-smokers. As hypothesized, we found that trait self-objectification mediated the relationship between smoking status and dieting and disordered eating behaviors. There were no significant differences in depression between smokers and non-smokers, which limited further exploration of the relationship. Implications for trait self-objectification as relevant to women’s weight-control smoking and the relevance of self-objectification to other health behaviors are discussed.     

Reasoning from an incompatibility: False dilemma fallacies and content effects

In the present studies, we investigated inferences from an incompatibility statement. Starting with two propositions that cannot be true at the same time, these inferences consist of deducing the falsity of one from the truth of the other or deducing the truth of one from the falsity of the other. Inferences of this latter form are relevant to human reasoning since they are the formal equivalent of a discourse manipulation called the false dilemma fallacy, often used in politics and advertising in order to force a choice between two selected options. Based on research on content-related variability in conditional reasoning, we predicted that content would have an impact on how reasoners treat incompatibility inferences. Like conditional inferences, they present two invalid forms for which the logical response is one of uncertainty. We predicted that participants would endorse a smaller proportion of the invalid incompatibility inferences when more counterexamples are available. In Study 1, we found the predicted pattern using causal premises translated into incompatibility statements with many and few counterexamples. In Study 2A, we replicated the content effects found in Study 1, but with premises for which the incompatibility statement is a non-causal relation between classes. These results suggest that the tendency to fall into the false dilemma fallacy is modulated by the background knowledge of the reasoner. They also provide additional evidence on the link between semantic information retrieval and deduction.     

Mental time travel in animals?

Are humans alone in their ability to reminisce about the past and imagine the future? Recent evidence suggests that food-storing birds (scrub jays) have access to information about what they have stored where and when. This has raised the possibility of mental time travel (MTT) in animals and sparked similar research with other species. Here we caution that such data do not provide convincing evidence for MTT. Examination of characteristics of human MTT (e.g. non-verbal declaration, generativity, developmental prerequisites) points to other avenues as to how a case for animal MTT could be made. In light of the current lack of evidence, however, we maintain that MTT is a uniquely human characteristic.     

Methodological Problems in Operant Learning Research with Human Infants

A great number of the recent studies on infant operant learning use the mobile conjugate reinforcement paradigm with 2- and 3-month-old infants. This paradigm has proved to be adequate for the study of learning and the transfer of learning. However, difficulties linked to the high attrition rates of subjects, and the variability in performance are frequently observed in studies using other paradigms or in studies with older infants (4–5-month-olds). The problems noted in a group of studies seem to be related to important methodological issues such as the brevity of the learning sessions, the choice of dependent measures, and the management of variability in performance. The use of single-subject designs and the use of variables encountered in infants' daily learning experiences may be the solution to some of the problems.     

Pink or blue: Environmental gender stereotypes in the first two years of life

The physical environment of 120 girls and boys was compared in order to study the emergence of gender differences in infancy. Three age groups were investigated, 5, 13, and 25 months, with 40 children in each group. The quantity and types of toys, the colors and types of clothing, and the colors and motifs of the children's room were noted on a checklist by an observer who visited their homes. The results showed that boys were provided with more sports equipment, tools, and large and small vehicles. Girls had more dolls, fictional characters, child's furniture, and other toys for manipulation. They wore pink and multicolored clothes more often, had more pink pacifiers and jewelry. Boys wore more blue, red and white clothing. They had more blue pacifiers. Yellow bedding was more frequently observed in the girls' rooms, while blue bedding and curtains were more prevalent in the boys' rooms. Women were the predominant providers of toys for children. It thus seems that, nowadays, very early in their development, girls and boys already experience environments which are dissimilar. We may hypothesize that these differential environments will have an impact on the development of specific abilities and preferential activities in children.This research was supported by grants from the Natural Sciences and Engineering Research Council of Canada, and FCAR, Québec. We thank France Frenette and Diane Mathurin for their assistance in the collection of data, and Tibie Rome-Flanders for her comments on a first draft of the paper.     

Effects of Labelled Gender on Vocal Communication of Young Women with 4-month-old Infants

Most of the previous studies analyzing the effect of gender label on adults' interactive behaviours with infants concluded that gender stereotypes affect adults' behaviours more than the actual behaviours or characteristics of the infants. These stereotypes and their ensuing behaviours would contribute to the differential socialization experiences of infants according to their gender. The objective of the present study was to investigate further the effect of gender label on adults' vocal communication with infants. Therefore, the prosodic and content features of the language addressed by young women to infants presented as girls and as boys were examined. Sixteen women were observed during two 5-minute sessions of face-to-face interaction with 3-to-4-month-old infants, one introduced as a girl, the other as a boy, in a counterbalanced order. Six girls and four boys served as stimuli. The number of utterances addressed to the infants, their duration and fundamental frequency, as well as the prosodic contour and the content of each vocalization were measured. Results indicated only one significant gender label effect: Women referred more frequently to infant's global motor activity when the infant was presented as a boy. This observation is congruent with other data. However, our results do not demonstrate a consistent pattern of gender label effect when women are talking to unfamiliar infants in such a context.