Integrating analogical mapping and general problem solving: the path-mapping theory

This article describes the path-mapping theory of how humans integrate analogical mapping and general problem solving. The theory posits that humans represent analogs with declarative roles, map analogs by lower-level retrieval of analogous role paths, and coordinate mappings with higher-level organizational knowledge. Implemented in the ACT-R cognitive architecture, the path-mapping theory enables models of analogical mapping behavior to incorporate and interface with other problem-solving knowledge. Path-mapping models thus can include task-specific skills such as encoding analogs or generating responses, and can make behavioral predictions at the level of real-world metrics such as latency or correctness. We show that the path-mapping theory can successfully account for the major phenomena addressed by previous theories of analogy. We also describe a path-mapping model that can account for subjects' incremental eye-movement and typing behavior in a story-mapping task. We discuss extensions and implications of this work to other areas of analogy and problem-solving research.     

Adult brains don't fully overcome biases that lead to incorrect performance during cognitive development: an fMRI study in young adults completing a Piaget‐like task

A current issue in developmental science is that greater continuity in cognition between children and adults may exist than is usually appreciated in Piaget‐like (stages or ‘staircase’) models. This phenomenon has been demonstrated at the behavioural level, but never at the brain level. Here we show with functional magnetic resonance imaging (fMRI), for the first time, that adult brains do not fully overcome the biases of childhood. More specifically, the aim of this fMRI study was to evaluate whether the perceptual bias that leads to incorrect performance during cognitive development in a Piaget‐like task is still a bias in the adult brain and hence requires an executive network to overcome it. Here, we compared two numerical‐judgment tasks, one being a Piaget‐like task with number–length interference (called ‘INT’) and the other being a control task with number–length covariation (‘COV’). We also used a colour‐detection task to control for stimuli numerosity, spatial distribution, and frequency. Our behavioural results confirmed that INT remains a difficult task for young adults. Indeed, response times were significantly higher in INT than in COV. Moreover, we observed that only in INT did response times increase linearly as a function of the number of items. The fMRI results indicate that the brain network common to INT and COV shows a large rightward functional asymmetry, emphasizing the visuospatial nature of these two tasks. When INT was compared with COV, activations were found within a right frontal network, including the pre‐supplementary motor area, the anterior cingulate cortex, and the middle frontal gyrus, which probably reflect detection of the number/length conflict and inhibition of the ‘length‐equals‐number’ response strategy. Finally, activations related to visuospatial and quantitative processing, enhanced or specifically recruited in the Piaget‐like task, were found in bilateral posterior areas.     

Social experience and school bullying

The goal of the present study is to investigate the relationship between school bullying and various aspects of the urban and scholastic environment where participants live, such as sense of community, exposure to dangerous and violent situations within the neighbourhood, perceptions of the safety of the neighbourhood and perceptions of the school environment. The research, performed in Ercolano, a town near Naples, covered the whole of Ercolano's population (n = 734) of 7th, 10th and 13th grade students. Data were analysed using a multivariate analysis of variance. Results showed that bullying role (pure bullies, pure victims, bully victims, not‐involved) is significantly associated with the way subjects perceive their exposure to dangerous and violent situations within the neighbourhood, their relationship with classmates and their relationship with teachers. Pure bullies and bully victims are especially likely to experience dangerous and violent situations in the neighbourhood where they live and have a more negative perception of their relationship with teachers; for pure victims and bully victims, a significant association is obtained with negative perceptions of relationships with classmates. These findings suggest the need for intervention strategies that extend beyond the classroom to the broader community and neighbourhood. Copyright © 2008 John Wiley & Sons, Ltd.     

Math in actions: Actor mode reveals the true arithmetic abilities of French-speaking 2-year-olds in a magic task

Our previous studies provide some evidence of between-language effects on arithmetic performance in 2-year-olds. French-speaking children were especially biased by the use of the word un as a cardinal value and as an article in the singular/plural opposition (1 vs. the set 2, 3, …). Here we evaluated the ability of a new action-based assessment method to avoid this bias. A total of 80 French-speaking 2- and 3-year-olds were confronted with impossible (1 + 1 = 1 or 1 + 1 = 3) and possible (1 + 1 = 2) addition problems that triggered the bias. The problems were either presented to the children by the experimenter (onlooker mode) or realized by themselves (actor mode). The 2-year-olds performed better in the actor mode than in the onlooker mode. A subtraction control with no language ambiguity (2-1 = 2 or 1) was conducted with 80 other children; both modes elicited comparable performances regardless of age. These data indicate that the actor mode is effective for assessing arithmetic ability in French-speaking 2-year-olds.     

(Mis-)Coordinating identities in the transition to parenthood: Investigating the co-development of partners’ parenting,domestic and provider identities before and after the birth of the first child

This research takes a socio-psychological perspective to studying the transition to parenthood, by longitudinally investigating how couples dyadically coordinate: (a) the changing centralities of parenting domestic and provider identities, and (b) the consequences of this for stress and relationship satisfaction. We collected longitudinal data from a Swiss community sample of 213 heterosexual, first-time parents, in approximately the 24th week of pregnancy (T1) and 2 years later (T2). Participants completed a sociogram task, sketching the centrality of parenting, domestic and provider identities, for themselves and their partner. We applied actor partner interdependence models to model changing identity centralities at T2, from the (coordination) of T1 identities, distinguishing effects due to one's partner and the individual. Results support identity coordination in couples, especially in the development of the domestic identity. This coordination also had longitudinal effects for couples’ well-being. Results emphasize the social forces that structure the self-concept, and their health consequences.     

A longitudinal examination of early communicative development: Evidence from a parent‐report questionnaire

The present research employed a longitudinal design to assess the verbal and non‐verbal communicative abilities of a sample of 104 children, using two different parent‐report instruments: the Questionnaire for Communication and Early Language (QCEL) development at 12, 16, and 20 months, and the Italian adaptation of the MacArthur–Bates Communicative Development Inventories: Words and Gestures at 23 months. The results supported and extended previous data about the validity of the QCEL, by showing that: (1) both verbal and non‐verbal variables predicted the level of language development at 23 months; (2) children classified as at‐risk with the QCEL had reduced vocabulary size and a lower number of sentences at 23 months; (3) early individual differences in the use of words and gestures were associated with later differences in linguistic abilities. It is concluded that the longitudinal use of the QCEL questionnaire can provide useful information about language development.     

Statistical power of articles published in three health psychology-related journals.

Power was calculated for 8,266 statistical tests in 187 journal articles published in the 1997 volumes of Health Psychology (HP), Addictive Behaviors (AB), and the Journal of Studies on Alcohol (JSA). Power to detect small, medium, and large effects was .34. .74. and .92 for HP; .34, .75, and .90 for AB; and .41, .81. and .92 for JSA. Mean power estimates are .36, .77, and .91, giving a good estimation for the field of health psychology. J. Cohen (1988) recommended that power to detect effects should be approximately .80. Using this criterion, the articles in these journals have adequate power to detect medium and large effects. Intervention studies have much less power to detect effects than nonintervention studies do. Results are encouraging for this field, although studies examining small effects are still very much underpowered. This issue is important, because most intervention effects in health psychology are small.     

Empowering Mimicry: Female Leader Role Models Empower Women in Leadership Tasks Through Body Posture Mimicry

Sex Roles - In two studies we investigated the behavioral process through which visible female leader role models empower women in leadership tasks. We proposed that women tend to mimic the...