Are imaging and lesioning convergent methods for assessing functional specialisation?: investigations using an artificial neural network

This article presents an investigation of the relationship between lesioning and neuroimaging methods of assessing functional specialisation, using synthetic brain imaging (SBI) and lesioning of a connectionist network of past-tense formation. The model comprised two processing ‘routes’: one was a direct route between layers of input and output units, while the other, indirect, route featured an intermediate layer of processing units. Emergent specialisation within the network was assessed (1) by lesioning either the direct or indirect route and measuring past-tense performance for regular and irregular verbs, and (2) by measuring functional activation in each route when processing each verb type (SBI). SBI and lesioning approaches failed to converge when network activation was summed over each route in our SBI approach. Examination of individual network solutions suggested that the verb types might be using the indirect route differently in terms of the pattern of activation across the route, rather than in terms of gross activation. A subsequent SBI analysis compared patterns of activation in the indirect route and confirmed that these patterns were more similar between regular-type verbs than between regular and irregular verbs. As the spatial and temporal resolution of neuroimaging techniques improves, the results of this investigation suggest that the key to finding functional specialisation will be to distinguish local coding differences across behaviours that are the results of developmental processes. Other analyses suggest that lesioning data may be limited because, with increasing damage, they reveal the resting activations of a computational system rather than a computational specialisation per se.     

Counseling in Brazil: Past,Present, and Future

This article describes counseling in Brazil, which is rooted in career and vocational guidance. Although considered a distinct discipline, counseling falls under the umbrella of psychology. The multicultural movement is gaining momentum in Brazil, and counselors are pioneers working with socioracial minority college students. This is an emerging dimension to the professional identity. Some Brazilian universities are interested in international partnerships that could lead to the establishment of counseling as an independent profession.     

Using eye movement measures to investigate effects of age on memory for objects in a scene

We examined whether there were age-related differences in eye movements during intentional encoding of a photographed scene that might account for age-related differences in memory of objects in the scene. Younger and older adults exhibited similar scan path patterns, and visited each region of interest in the scene with similar frequency and duration. Despite the similarity in viewing, there were fundamental differences in the viewing-memory relationship. Although overall recognition was poorer in the older than younger adults, there was no age effect on recognition probability for objects visited only once. More importantly, re-visits to objects brought gain in recognition probability for the younger adults, but not for the older adults. These results suggest that the age-related differences in object recognition performance are in part due to inefficient integration of information from working memory to longer-term memory.     

Offline consolidation of memory varies with time in slow wave sleep and can be accelerated by cuing memory reactivations

Memory representations are reactivated during slow-wave sleep (SWS) after learning, and these reactivations cause a beneficial effect of sleep for memory consolidation. Memory reactivations can also be externally triggered during sleep by associated cues which enhance the sleep-dependent memory consolidation process. Here, we compared in humans the influence of sleep periods (i) of 40min and (ii) of 90min without externally triggered reactivations and (iii) of externally triggered reactivations by an associated odor cue during a 40-min sleep period on the consolidation of previously learned hippocampus-dependent visuo-spatial memories. We show that external reactivation by an odor cue during the 40-min sleep period enhanced memory stability to the same extent as 90min of sleep without odor reactivation. In contrast, 40min of sleep without external reactivations were not sufficient to benefit memory. In the 90-min sleep condition, memory enhancements were associated with time spent in SWS and were independent of the presence or absence of REM sleep. These results suggest that the efficacy of hippocampus-dependent memory consolidation depends on the duration of sleep and particularly SWS. External reactivation cues can accelerate the consolidation process even during shorter sleep episodes.     

The relationship between external job mobility and salary attainment across career stages

The current study examines the relationship between external job mobility and salary for employees in different career stages. Based on career stage and career timetable theories, we predict that external job mobility would generate the greatest salary benefits for early-career employees whereas external job mobility would generate fewer salary benefits for employees in mid- and late career stages. Data collected from multiple industries in Hong Kong and the United States consistently show that, as expected, highly mobile early-career employees earn significantly greater salaries than their less mobile peers do. The positive effects of external job mobility on salary were stronger for early-career workers than for mid-and late-career workers.     

Assessing the use of multiple sources in student essays

The present study explored different approaches for automatically scoring student essays that were written on the basis of multiple texts. Specifically, these approaches were developed to classify whether or not important elements of the texts were present in the essays. The first was a simple pattern-matching approach called "multi-word" that allowed for flexible matching of words and phrases in the sentences. The second technique was latent semantic analysis (LSA), which was used to compare student sentences to original source sentences using its high-dimensional vector-based representation. Finally, the third was a machine-learning technique, support vector machines, which learned a classification scheme from the corpus. The results of the study suggested that the LSA-based system was superior for detecting the presence of explicit content from the texts, but the multi-word pattern-matching approach was better for detecting inferences outside or across texts. These results suggest that the best approach for analyzing essays of this nature should draw upon multiple natural language processing approaches.     

Dietary restraint in college women: Fear of an imperfect fat self is stronger than hope of a perfect thin self

We predicted that the perceived likelihood of acquiring a hoped-for thin self would mediate perfectionistic strivings on dietary restraint, and that the perceived likelihood of acquiring a feared fat self would mediate perfectionistic concerns on dietary restraint. We also predicted that the mediation pathway from perfectionistic concerns to dietary restraint would have a greater impact than that from perfectionistic strivings. Participants were 222 female college students who reported their height and weight and completed measures of perfectionism, the likelihood of acquiring the feared fat and hoped-for thin selves, and dietary restraint. Statistical analyses revealed that the perceived likelihood of acquiring the feared fat self mediated both perfectionistic concerns and perfectionistic strivings on dietary restraint, and that the mediating pathway from perfectionistic concerns to dietary restraint was greater than that from perfectionistic strivings. Implications for future research and eating pathology interventions are discussed.     

Celtic marketing: Assessing the authenticity of a never ending story

Many consumers around the world are familiar with Celtic‐related themes having been exposed to them in their consumption practices. Identifying who the Celts were is relatively straightforward as, despite having no language, they have left their impression on the landscape and in artefacts. In this paper, we ask whether there is such a thing as a Celtic Feeling that consumers identify with and marketers can utilize. The authenticity of Celtic Marketing Practice is assessed using indexical and iconic cues, and the pursuit of personal goals as a framework applied to three case studies—Guinness, the Irish Pub Company and the Orkadian jewellery industry. Findings suggest an authenticity to Celtic Marketing in terms of brand positioning and, to a lesser extent, marketing management philosophy. Links are made to place marketing, storytelling and experiential marketing. Copyright © 2013 John Wiley & Sons, Ltd.     

“My Family Would Crucify Me!”: The Perceived Influence of Social Pressure on Cross-Cultural and Interfaith Dating and Marriage

The present study examined the perceived influence of parental and social pressure on individuals’ perceptions regarding cross-cultural and interfaith dating and marriage. The questions of interest were: (1) What is the influence of parental attitudes towards interfaith and cross-cultural relationships? (2) How do the participants feel it impacts upon them? And lastly, (3) How do the participants predict they will respond to their children’s choice of such relationships? Fifty-five university students with diverse backgrounds participated in this study. The findings indicate that the majority of the participants were influenced by the social pressure put upon them. Moreover, the participants perceived the previous generation as “racist”. However, interestingly there are signs of a generational attitude shift. Finally, the findings show that over 80 % of the participants did not want to interfere in their children’s partner selection. The remaining 20 % were against interfaith and cross-cultural dating and marriages.     

The temporal dimension of national identification: An empirical investigation in South Korea and Australia

We argue that national identification can be framed temporally, such that people may differently identify with their nation's past or present. Further, we argue that temporal national identification has important consequences for attitudes towards social changes. Within this new theoretical framing, we tested the empirical separability and predictive utility of past national identification and present national identification in South Korea and Australia. Results showed that, in both countries, past and present national identifications are correlated but empirically distinct constructs, which independently contribute to general national identification. Past and present national identifications were also shown to be grounded in distinct notions of national continuity. Most importantly, in both countries, present national identification positively predicted favourable attitudes towards social changes and globalization, whereas past national identification negatively predicted these attitudes. These findings suggest that temporally framed national identification is an important construct in the domain of social identification and in research on social changes and globalization.