How activation, entanglement, and searching a semantic network contribute to event memory

Free-association norms indicate that words are organized into semantic/associative neighborhoods within a larger network of words and links that bind the net together. We present evidence indicating that memory for a recent word event can depend on implicitly and simultaneously activating related words in its neighborhood. Processing a word during encoding primes its network representation as a function of the density of the links in its neighborhood. Such priming increases recall and recognition and can have long-lasting effects when the word is processed in working memory. Evidence for this phenomenon is reviewed in extralist-cuing, primed free-association, intralist-cuing, and single-item recognition tasks. The findings also show that when a related word is presented in order to cue the recall of a studied word, the cue activates the target in an array of related words that distract and reduce the probability of the target’s selection. The activation of the semantic network produces priming benefits during encoding, and search costs during retrieval. In extralist cuing, recall is a negative function of cue-to-distractor strength, and a positive function of neighborhood density, cue-to-target strength, and target-to-cue strength. We show how these four measures derived from the network can be combined and used to predict memory performance. These measures play different roles in different tasks, indicating that the contribution of the semantic network varies with the context provided by the task. Finally, we evaluate spreading-activation and quantum-like entanglement explanations for the priming effects produced by neighborhood density.     

The impact of career websites: what's the evidence?

ABSTRACT

Careers provision for young people in the UK is being re-formulated on the basis of a central role for career websites but this policy is based on unproven assumptions about their value. In this article we consider the use and impact of the two main career websites in Scotland on pupils' career management skills. We found that pupils at risk of not achieving positive post-school destinations were less likely to use the websites, as were minority ethnic pupils. Although similar in functions, the two websites differed in their effect: one had no impact while the other impacted on only one aspect of pupils' career management skills. Careers policy needs to be informed by more extensive research on career websites.     

Executive function outcomes of children with traumatic brain injury sustained before three years

Traumatic brain injury (TBI) is a common cause of disability in childhood. While the outcomes of TBI sustained in school years has been heavily researched, very little is known about the impact of TBI in infants and young children. The aim of this study was to investigate the impact of TBI on executive function (EF) in children who sustained a TBI before 3 years of age. A group of 55 children, 19 with a mild TBI, 16 children with a moderate-severe TBI, and 20 uninjured comparison children participated. The EF of children aged 3 to 6 years were compared using child-based measures of attentional control and information processing. Parents completed questionnaires rating their child's EF. Severity groups differed on the child-based EF measure of attentional control with children with TBI performing below the control group. There were no significant group differences for information processing or parent-rated EF. It appears that children who sustain a TBI before the age of 3 years display impairments in some areas of attentional control 3–4 years postinjury. The findings fit with the existing EF literature for older children.     

Finding faults: analogical comparison supports spatial concept learning in geoscience

A central issue in education is how to support the spatial thinking involved in learning science, technology, engineering, and mathematics (STEM). We investigated whether and how the cognitive process of analogical comparison supports learning of a basic spatial concept in geoscience, fault. Because of the high variability in the appearance of faults, it may be difficult for students to learn the category-relevant spatial structure. There is abundant evidence that comparing analogous examples can help students gain insight into important category-defining features (Gentner in Cogn Sci 34(5):752–775, 2010). Further, comparing high-similarity pairs can be especially effective at revealing key differences (Sagi et al. 2012). Across three experiments, we tested whether comparison of visually similar contrasting examples would help students learn the fault concept. Our main findings were that participants performed better at identifying faults when they (1) compared contrasting (fault/no fault) cases versus viewing each case separately (Experiment 1), (2) compared similar as opposed to dissimilar contrasting cases early in learning (Experiment 2), and (3) viewed a contrasting pair of schematic block diagrams as opposed to a single block diagram of a fault as part of an instructional text (Experiment 3). These results suggest that comparison of visually similar contrasting cases helped distinguish category-relevant from category-irrelevant features for participants. When such comparisons occurred early in learning, participants were more likely to form an accurate conceptual representation. Thus, analogical comparison of images may provide one powerful way to enhance spatial learning in geoscience and other STEM disciplines.     

THE THEOLOGICAL ETHICS OF HERBERT McCABE, OP: A REVIEW ESSAY

Herbert Mc Cabe, OP (d. 2001), was a significant theological figure in England in the last century. A scholar of Aquinas, he was also influenced by Wittgenstein and Marx, his reading of whom helped him articulate a distinctive Thomistic account of human embodiment that serves as a critique of other dominant approaches in ethics. This article shows McCabe's contribution to moral theology by placing his work in conversation with other important approaches, namely, situation ethics, proportionalism, and the New Natural Law Theory.     

The structure of effortful control in preschoolers and its relation to externalizing problems

The first aim of the present study was to examine the structure of effortful control. The second aim was to determine whether components of effortful control relate to conduct problems and hyperactivity. Effortful control was measured in 3‐year‐old children (N= 89) with an observational measure, the effortful control battery (ECB), and a parent report, the Children's Behaviour Questionnaire (CBQ). Principal component analysis showed that the ECB measures five components, assessing two higher‐order constructs, which can be labelled as Self‐Control and Attention/Motor Control. The five scales of the CBQ appeared to measure one construct – a more general measure of effortful control. The components and constructs of the ECB as well as the scales of the CBQ were differently related to conduct problems and hyperactivity. Conduct problems were most strongly predicted by observed Delay of Gratification and parent‐reported Inhibitory Control, whereas Hyperactivity was most strongly predicted by observed Delay of Gratification, and the higher‐order construct Attention/Motor Control, as well as parent‐reported Attentional Focusing and Inhibitory Control. It is important to keep in mind that effortful control is composed of heterogeneous components, all having their own unique values.