The question of how children learn the meanings of words has long puzzled philosophers and psychologists. As Quine famously pointed out, simply hearing a word in context reveals next to nothing about its meaning. How then do children learn to understand and use words correctly? Here, we show how learning theory can offer an elegant solution to this seemingly intractable puzzle in language acqui...

This study assessed the physical activity (PA) levels and its variability across days, months and seasons of two groups of high school pupils: those who did and those who did not participate in regular organized after-school physical activity (ASPA). Thirteen pupils wore pedometers continuously for one school-year, logged their step counts into record sheets and were then interviewed for inform...

In an ideal elastic bounce of the body, the time during which mechanical energy is released during the push equals the time during which mechanical energy is absorbed during the brake, and the maximal upward velocity attained by the center of mass equals the maximal downward velocity. Deviations from this ideal model, prolonged push duration and lower upward velocity, have found to be greater i...

Teachers were asked to identify and rank 10 preferred stimuli for 9 toddlers, and a hierarchy of preference for these items was determined via a direct preference assessment. The reinforcing efficacy of the most highly preferred items identified by each method was evaluated concurrently in a reinforcer assessment. The reinforcer assessment showed that all stimuli identified as highly preferred ...

Sudden events and sharp discontinuities in the external world act as powerful attention attractors in adult humans. Does this reflex-like orienting towards targets deviating from their surround occur in early infancy? Here, we present evidence that, during the first months of life, infants orient preferentially towards repetitive visual patterns, rather than towards uniquely deviating targets. ...

and Belief-Based Language Differentiate Joking, Pretending, and Literal Toddler-Directed Speech Elena Hoicka ([email protected]) Psychology Department, University of Stirling, Stirling, FK9 4LA, UK Ruth Campbell ([email protected]) Psychology Department, University of Stirling, Stirling, FK9 4LA, UK

Studies are needed to better understand the broad autism phenotype in young siblings of children with autism. Cognitive, adaptive, social, imitation, play, and language abilities were examined in 42 non-autistic siblings and 20 toddlers with no family history of autism, ages 18-27 months. Siblings, as a group, were below average in expressive language and composite IQ, had lower mean receptive ...

The Children's Depression Rating Scale-Revised (CDRS-R) is a widely used instrument for research on depression in minors. A raw score of ≥40 has often been used as indicator of depressive symptomatology. As a validated German version of the CDRS-R has recently became available, we assessed CDRS-R raw summary scores of a video taped interview session in two different rater groups and compared th...

Recent research has shown that by 30 months of age, children can successfully update their representation of an absent object's location on the basis of new verbal information, whereas 23-month-olds often return to the object's prior location. The current results show that this updating failure persisted even when (a) toddlers received visual and verbal information about the prior location but ...

Familism is a core value promoted by many individuals of Hispanic or Latino descent that emphasizes the primacy of the family over the individual. This study illuminates some aspects of the relationship between familism and adolescent suicidal behavior. Qualitative data from 24 female Hispanic teens with and without a history of suicidal behaviors and their parents were analyzed to understand t...