Universal sex differences in the desire for sexual variety: tests from 52 nations, 6 continents,and 13 islands

Evolutionary psychologists have hypothesized that men and women possess both long-term and short-term mating strategies, with men's short-term strategy differentially rooted in the desire for sexual variety. In this article, findings from a cross-cultural survey of 16,288 people across 10 major world regions (including North America, South America, Western Europe, Eastern Europe, Southern Europe, Middle East, Africa, Oceania, South/Southeast Asia, and East Asia) demonstrate that sex differences in the desire for sexual variety are culturally universal throughout these world regions. Sex differences were evident regardless of whether mean, median, distributional, or categorical indexes of sexual differentiation were evaluated. Sex differences were evident regardless of the measures used to evaluate them. Among contemporary theories of human mating, pluralistic approaches that hypothesize sex differences in the evolved design of short-term mating provide the most compelling account of these robust empirical findings.     

Get the picture? The effects of iconicity on toddlers' reenactment from picture books

What do toddlers learn from everyday picture-book reading interactions? To date, there has been scant research exploring this question. In this study, the authors adapted a standard imitation procedure to examine 18- to 30-month-olds' ability to learn how to reenact a novel action sequence from a picture book. The results provide evidence that toddlers can imitate specific target actions on novel real-world objects on the basis of a picture-book interaction. Children's imitative performance after the reading interaction varied both as a function of age and the level of iconicity of the pictures in the book. These findings are discussed in terms of children's emerging symbolic capacity and the flexibility of the cognitive representation.     

Breaking the barrier? Children fail to translate their preverbal memories into language

We examined children's ability to translate their preverbal memories into language following a period of substantial language development. Children participated in a unique event, and their memory was assessed 6 months or 1 year later. At the time of the event and at the time of the test, their language skills were also assessed. Children of all ages exhibited evidence of verbal and nonverbal memory. Their language skills also improved over the delay. By the time of the test, children of all ages had acquired most of the vocabulary necessary to describe the target event. Despite this, they did not translate preverbal aspects of their memory into language during the test. In no instance did a child verbally report information about the event that was not part of his or her productive vocabulary at the time of encoding. We conclude that language development plays a pivotal role in childhood amnesia.     

Planes, trains, automobiles--and tea sets: extremely intense interests in very young children

Some normally developing young children show an intense, passionate interest in a particular category of objects or activities. The present article documents the existence of extremely intense interests that emerge very early in life and establishes some of the basic parameters of the phenomenon. Surveys and interviews with 177 parents revealed that nearly one third of young children have extremely intense interests. The nature of these intense interests is described, with particular focus on their emergence, commonalities in the content of the interests, and the reactions of other people to them. One of the most striking findings is a large gender difference: Extremely intense interests are much more common for young boys than for girls.     

Transleadership for Transdisciplinary Initiatives

This article shares the genesis of a new idea we called transleadership, as it is informed by Nicolescuian transdisciplinarity. While aligned with several leading edge approaches to leadership, we propose that transleadership stands out because it emerges at the convergence of seven transconcepts: complexity (emergence), logic and reality, intersubjectivity, sensemaking, tensions, power and influence, leverage, and the creation of in vivo, hybrid knowledge. Transleadership accommodates the intricate and complex process of leading a diverse collection of (often contradictory) people, ideas, and consciousness to a new space and place where transdisciplinary knowledge can be created to address wicked problems facing humanity, using transdisciplinary thinking.     

Skillful action in peripersonal space

In this article, I link the empirical hypothesis that neural representations of sensory stimulation near the body involve a unique motor component to the idea that the perceptual field is structured by skillful bodily activity. The neurophenomenological view that emerges is illuminating in its own right, though it may also have practical consequences. I argue that recent experiments attempting to alter the scope of these near space sensorimotor representations are actually equivocal in what they show. I propose resolving this ambiguity by treating these representations as responsive to the development or degeneration of know-how—which can be isolated as an appropriate object for scientific investigation.     

The transmission of attachment across generations: The state of art and new theoretical perspectives

The paper reviews the body of research testing the intergenerational transmission of attachment and the theoretical shift from the linear or mediation model (van IJzendoorn, 1995), according to which parental sensitivity is the main factor responsible for the correspondence between maternal and infant's attachment, to the ecological model of the transmission of attachment (van IJzendoorn & Bakermans‐Kranenburg, 1997). This latter model has prompted researchers, over time, to identify potential mediators, other than caregiver's sensitivity, of the established association between parental representations regarding attachment and infant's attachment, as well as the potential moderators of the transmission process. Each of these two research domains will be carefully explored; lastly new perspectives on the intergenerational transmission of attachment and relevant areas of research needing more investigation are highlighted.