Recall cues interfere with retrieval from visuospatial working memory

Visuospatial working memory allows us to hold multiple visual objects over short delays. It is typically tested by presenting an array of objects, then after a delay showing a ‘probe’ indicating which memory item to recall or reproduce by adjusting a target feature. However, recent studies demonstrate that information at the time of probe can disrupt recall. Here, in three experiments we test whether traditional memory probes, which contain features that compete with the feature to be recalled, may themselves interfere with performance. We asked participants to report the direction of one of the several coloured arrows in memory, based on its colour. First, we demonstrate that recall is better when the probe is initially just a coloured dot, rather than a coloured arrow which has to be adjusted to match orientation memory, consistent with interference from features of the probe itself. Second, this interference is present even when a mask follows the memory array, suggesting that the interference does not work by degrading immediate or iconic memory. Finally, when items are shown sequentially, the first and last items are invulnerable to probe interference. Our findings support recent theories of associative recall, in which probes reactivate features in WM, retrieving information by pattern completion.     

Happiness at Work Scale: Construction and Psychometric Validation of a Measure Using Mixed Method Approach

Using a mixed method approach we conducted three studies to construct a multidimensional measure of happiness at work. In Study 1, a qualitative content analysis using Atlas.ti 7 offered support for the proposed, a priori deductive model which also discriminated between the construct of happiness at work and happiness in personal life. Further, a principal axis factoring of the responses consisting of 539 working people (Study 2) yielded four factors reflecting the equal role of organizational and human aspects of the workplace happiness, i.e. supportive work experiences, unsupportive work experiences, flow and intrinsic motivation and work repulsive feelings. In Study 3, a Confirmatory Factor Analysis testing the reflective versus formative structure of the proposed scale supported a four-factor reflective model over a series of 13 competing models. Moreover, the scale showed statistically significant convergent and discriminant validity. Possible applications of the scale in predicting happiness styles and enhancing the experience of happiness at work has been presented at the end.     

The role of idiosyncratic attribute evaluation in mass customization

The growing use of mass customization necessitates an understanding of consumers' evaluations of mass customization platforms. We hypothesize that consumers' objective and subjective knowledge of the customized product moderate the influence of idiosyncratically evaluated (i.e., personalizable) attributes on satisfaction with a customization platform. Consistent with our theoretical framework, results from three experiments show that offering greater variety in idiosyncratically evaluated attribute options increases consumers' satisfaction to a greater extent for: (1) novices than experts (2) consumers with more subjective knowledge, and (3) miscalibrated consumers whose subjective knowledge does not match their objective knowledge, than calibrated consumers whose subjective and objective knowledge match.     

Should the NHS be privatized? Annual varsity medical debate - London, 22 January 2010

The Varsity Medical Debate, between Oxford and Cambridge Universities, brings together practitioners and the public, professors, pupils and members of the polis, to facilitate discussion about ethics and policy within healthcare. The motion on privatizing the National Health Service (NHS) was specifically chosen to reflect the growing sentiment in the UK where further discourse upon models of healthcare was required. Time and again, the outcome of British elections pivots upon the topic of financial sustainability of the NHS. Having recently celebrated its sixtieth anniversary, the NHS has become heavily politicized in recent months, especially in the aftermath of the devastating global recession.     

Should we trust web-based studies? A comparative analysis of six preconceptions about internet questionnaires

The rapid growth of the Internet provides a wealth of new research opportunities for psychologists. Internet data collection methods, with a focus on self-report questionnaires from self-selected samples, are evaluated and compared with traditional paper-and-pencil methods. Six preconceptions about Internet samples and data quality are evaluated by comparing a new large Internet sample (N = 361,703) with a set of 510 published traditional samples. Internet samples are shown to be relatively diverse with respect to gender, socioeconomic status, geographic region, and age. Moreover, Internet findings generalize across presentation formats, are not adversely affected by nonserious or repeat responders, and are consistent with findings from traditional methods. It is concluded that Internet methods can contribute to many areas of psychology.     

Building to discover: a common coding model

I present a case study of scientific discovery, where building two functional and behavioral approximations of neurons, one physical and the other computational, led to conceptual and implementation breakthroughs in a neural engineering laboratory. Such building of external systems that mimic target phenomena, and the use of these external systems to generate novel concepts and control structures, is a standard strategy in the new engineering sciences. I develop a model of the cognitive mechanism that connects such built external systems with internal models, and I examine how new discoveries, and consensus on discoveries, could arise from this external-internal coupling and the building process. The model is based on the emerging framework of common coding, which proposes a shared representation in the brain between the execution, perception, and imagination of movement.     

Optimism in close relationships: How seeing things in a positive light makes them so

Does expecting positive outcomes--especially in important life domains such as relationships--make these positive outcomes more likely? In a longitudinal study of dating couples, the authors tested whether optimists (who have a cognitive disposition to expect positive outcomes) and their romantic partners are more satisfied in their relationships, and if so, whether this is due to optimists perceiving greater support from their partners. In cross-sectional analyses, both optimists and their partners indicated greater relationship satisfaction, an effect that was mediated by optimists' greater perceived support. When the couples engaged in a conflict conversation, optimists and their partners saw each other as engaging more constructively during the conflict, which in turn led both partners to feel that the conflict was better resolved 1 week later. In a 1-year follow-up, men's optimism predicted relationship status. Effects of optimism were mediated by the optimists' perceived support, which appears to promote a variety of beneficial processes in romantic relationships.