Undermined

A popular strategy for understanding the probabilities that arise in physics is to interpret them via reductionist accounts of chance—indeed, it is sometimes claimed that such accounts are uniquely well-suited to make sense of the probabilities in classical statistical mechanics. Here it is argued that reductionist accounts of chance carry a steep but unappreciated cost: when applied to physical theories of the relevant type, they inevitably distort the relations of probability that they take as input.     

Is statistical learning a mechanism?

Philosophers of science have offered several definitions of mechanism, most of which have biological or neuroscientific roots. In this paper, I consider whether these definitions apply equally well to cognitive science. I examine this question by looking at the case of statistical learning, which has been called a domain-general learning mechanism in the cognitive scientific literature. I argue that statistical learning does not constitute a mechanism in the philosophical sense of the term. This conclusion points to significant limitations in the scope of the mechanist philosophy when it comes to accounting for explanation in cognitive science.     

Role of Hindsight Bias,Ethics, and Self-Other Judgments in Students’ Evaluation of an Animal Experiment

Does hindsight knowledge make research seem more ethical and predictable? In line with the notion of hindsight bias, students in 3 experiments knowing the outcome of an animal experiment judged the results as more foreseeable and ethical relative to students who did not know the outcome. Via self to other comparisons, students evaluate themselves more favorably compared to a peer but exhibited hindsight bias in doing so. Uniquely, the findings reveal the possibility that students deem themselves to be more skeptical and objective than their peers. Implications for teaching animal ethics and for Institutional Review Boards are discussed.     

Temporal focus,temporal distance,and mind-wandering valence: Results from an experience sampling and an experimental study

When mind-wandering, people may think about events that happened in the past, or events that may happen in the future. Using experience sampling, we first aimed to replicate the finding that future-oriented thoughts show a greater positivity bias than past-oriented thoughts. Furthermore, we investigated whether there is a relation between the temporal distance of past- and future-oriented thoughts and the frequency of positive thoughts, a factor that has received little attention in previous work. Second, we experimentally investigated the relation between temporal focus, temporal distance, and thought valence. Both studies showed that future-oriented thoughts were more positive compared to past-oriented thoughts. Regarding temporal distance, thoughts about the distant past and future were more positive than thoughts about the near past and future in the experiment. However, the experience sampling study did not provide clear insight into this relation. Potential theoretical and methodological explanations for these findings are discussed.     

Cognitive bias modification as a strategy to reduce children's fears and concerns about the secondary school transition

Background and objectives: Cognitive Bias Modification of Interpretations (CBM-I) has emerged as an anxiety-reducing tool for children and adolescents, targeting maladaptive interpretations of everyday situations. This literature falls short of addressing whether the effects of CBM-I extend to worries about a real-life stressor, such as a school transition. Design: The study comprised a between-groups design comparing the effects of CBM-I to an active control (AC) intervention in children. Method: We recruited 38 children within two months of their primary–secondary school transition and investigated the capacity for multi-session, parent-administered CBM-I, compared to an AC condition, to modify cognitive style and reduce anxiety symptoms and school concerns. Results: While benign interpretations increased significantly and negative interpretations tended to decrease following CBM-I, both interventions significantly reduced anxiety symptoms and school concerns. Conclusions: These findings indicate that anxiety-reducing effects of CBM-I in children extend to a real life stressful event, but that equivalent anxiety reduction may be achieved through exposure to potentially worrying situations and parent–child interaction in the absence of bias modification.     

Learning What to Remember: Vocabulary Knowledge and Children's Memory for Object Names and Features

Although young children can map a novel name to a novel object, it remains unclear what they actually remember about objects when they initially make such a name–object association. In the current study we investigated (1) what children remembered after they were initially introduced to name–object associations and (2) how their vocabulary size and vocabulary structure influenced what they remembered. As a group, children had difficulty remembering each of the features of the original novel objects. Further analyses revealed that differences in vocabulary structure predicted children's ability to remember object features. Specifically, children who produced many names for categories organized by similarity in shape (e.g. ball, cup) had the best memory for newly‐learned objects' features—especially their shapes. In addition, the more features children remembered, the more likely they were to retain the newly learned name–object associations. Vocabulary size, however, was not predictive of children's feature memory or retention. Taken together, these findings demonstrate that children's existing vocabulary structure, rather than simply vocabulary size, influences what they attend to when encountering a new object and subsequently their ability to remember new name–object associations. Copyright © 2015 John Wiley & Sons, Ltd.     

Biased Facial Expression Interpretation in Shy Children

The relationship between shyness and the interpretations of the facial expressions of others was examined in a sample of 123 children aged 12 to 14 years. Participants viewed faces displaying happiness, fear, anger, disgust, sadness, surprise, as well as a neutral expression, presented on a computer screen. The children identified each expression by pressing a button on an external keyboard. For each expression, children also rated (a) the degree to which they felt the child displaying the expression would like them, (b) the probability that someone at school would look at them with that expression, and (c) their own emotional reaction to interacting with a child displaying the expression. Participants also completed the Children's Shyness Questionnaire and the Children's Rejection Sensitivity Questionnaire. We hypothesized that shyness in children would be related to negatively biased interpretations of facial expressions. Although the accuracy with which the children could identify the facial expressions was not related to their degree of shyness, negative biases were found in their interpretations of the meanings of the expressions. Furthermore, rejection sensitivity significantly mediated many of these biased interpretations. These findings may have implications for interventions for children experiencing shyness and social anxiety, especially social‐skills training approaches. Copyright © 2015 John Wiley & Sons, Ltd.