Resisting change: The influence of luminance changes on visual marking and the preview benefit

Visual search can benefit when one set of distractors is presented as a preview, prior to the appearance the second set of distractors plus the target (Watson & Humphreys, 1997). It has been shown that changing the shape of the old, previewed stimuli when the new items appear causes the old stimuli to recompete for selection with the new ones. In contrast, changing the luminance or color of the old stimuli has no detrimental effects. Here, we present five experiments that reassessed the effect of luminance changes in preview search. We show (1) that preview search is remarkably resistant to large changes in the absolute luminance of the old stimuli, even when those changes would ordinarily be sufficient to signal the appearance of a new object and draw attention (Experiments 1 and 2), and (2) that resistance to luminance changes can be bolstered by feature-based inhibitory processes (Experiments 3–5). These findings are discussed in terms of the possible ecological properties of time-based visual selection and possible mechanisms underlying the preview benefit.     

The influence of attention on value integration

People often have to make decisions based on many pieces of information. Previous work has found that people are able to integrate values presented in a rapid serial visual presentation (RSVP) stream to make informed judgements on the overall stream value (Tsetsos et al. Proceedings of the National Academy of Sciences of the United States of America, 109(24), 9659–9664, 2012). It is also well known that attentional mechanisms influence how people process information. However, it is unknown how attentional factors impact value judgements of integrated material. The current study is the first of its kind to investigate whether value judgements are influenced by attentional processes when assimilating information. Experiments 1–3 examined whether the attentional salience of an item within an RSVP stream affected judgements of overall stream value. The results showed that the presence of an irrelevant high or low value salient item biased people to judge the stream as having a higher or lower overall mean value, respectively. Experiments 4–7 directly tested Tsetsos et al.’s (Proceedings of the National Academy of Sciences of the United States of America, 109(24), 9659–9664, 2012) theory examining whether extreme values in an RSVP stream become over-weighted, thereby capturing attention more than other values in the stream. The results showed that the presence of both a high (Experiments 4, 6 and 7) and a low (Experiment 5) value outlier captures attention leading to less accurate report of subsequent items in the stream. Taken together, the results showed that valuations can be influenced by attentional processes, and can lead to less accurate subjective judgements.     

Stress and Risky Decision Making: Cognitive Reflection,Emotional Learning or Both.

Stressful situations hinder judgement. Effects of stress induced by anticipated public speaking on the Iowa Gambling Task (IGT) were examined. The Cognitive Reflection Test (CRT) was used to examine the relationship between reflective thinking and IGT performance. The stress manipulation increased blood pressure and was associated with poorer IGT and CRT performance. Stressed participants were slower to avoid the disadvantageous decks. Moreover, CRT scores correlated with optimal deck selections indicating the importance of reflective thinking for good performance on the IGT. These correlations were observed in relatively early trials, which challenges the view that analytic thinking is not important when card contingencies are being learned. Data revealed that IGT performance in healthy individuals is not always optimal; stress levels impair performance. A mediation analysis was consistent with the proposal that the stress manipulation reduced IGT performance by impeding reflective thinking. Thus, reflective processing is an important explanation of IGT performance in healthy populations. It was concluded that more reflective participants appear to learn from the outcomes of their decisions even when stressed. Copyright © 2016 John Wiley & Sons, Ltd.     

Every Child Still Matters: interdisciplinary approaches to the spirituality of the child

Abstract

Ten years ago, I was a researcher with the Evaluation of Children’s Trusts which examined a key aspect of U.K. government policy, Every Child Matters. Every Child Matters was partly a response to Lord Laming’s 2003 report into the murder of 8-year old Victoria Climbié, which concluded that children’s services needed to be better integrated to avoid such tragedies in the future. Children’s Trusts were regional hubs, set-up across England to facilitate integrated professional practice; but Every Child Matters was bigger than this because it set out a policy vision for rethinking the child as a whole person. At the time, I was struck by the absence of any reference to spirituality in this new holistic view of the child, and this led me to write an article which was published in 2006 entitled, ‘Every Child Matters and children’s spiritual rights: does the new holistic approach to children’s care address children’s spiritual well-being?’.

This article was originally a keynote talk at the 2016 International Conference on Children’s Spirituality with the theme Spirituality and the whole child: interdisciplinary approaches, and this provided the opportunity both to see where we are now with integrated working for children and young people more generally, and to focus our attention on interdisciplinary approaches to children’s spirituality and the whole child in particular. The article begins by summarising some of the current thinking spirituality, the whole child and interdisciplinary working. The article then goes on to consider a long-standing concern of mine, and one which was highlighted in my 2006 article, which is what we intend to mean – collectively, as academics and professional practitioners concerned with children’s (and adults’) spirituality – when we use the term ‘spirituality’ in the professional context. In my view, it is time to stop stating that spirituality is hard to define, and come to an agreement about what we mean when we use it. Interdisciplinary approaches to children’s (and adults’) spirituality, and holistic approaches to the child (and adult), will not be successful unless there is a clear, shared agreement about what we mean, and the article ends with suggestions for ways forward.     

Negotiating multiple perspectives: a discussion of instructors’ practice within an English-language service course

At the University of the West Indies, large courses often require the involvement of multiple persons in their delivery. Within the English Language Foundation Unit, several of the courses offered cater to over 500 students in any given semester. The large number of students necessitates multiple practitioners providing instructions as part of the same course offering. While stylistics may vary, there is the need for course instruction and content to depict uniformity. Practitioners’ conceptualization of a specific topic will inform the instruction received by students. In instances where practitioners do not conceptualize content in a like manner, students within the same course may receive varied instruction, thus affecting student output and overall evaluation. The paper looks specifically at a service course offered at the University of the West Indies and the practices of the multiple persons involved in the teaching of the course. It provides an overview of practitioners’ discussion of their conceptualization of content areas within the courses and assesses the extent to which there are variations and/or similarities. It also discusses how these impact teaching and learning. The research seeks to derive an actionable direction for collaboration and further discussions within large service courses with the aim of improving teaching and learning.     

Personality differences in high risk sports amateurs and instructors

This study investigated the personality differences of 21 amateurs and 20 instructors who participated in the high risk sports of skydiving, hang-gliding, paragliding, scuba diving, microlighting, and rock climbing, versus those who did not. 38 men and 28 women (M age=32.6 yr., SD= 10.0) were assessed using the Eysenck Personality Questionnaire-Revised, the General Health Questionnaire, the Generalised Self-efficacy Scale, and a Type A/B personality measure. Instructors and Amateurs scored significantly higher on Extroversion and lower on Neuroticism than Nonparticipants; however, they differed from each other on the General Health Questionnaire and Type A/B personality scores. Amateurs scored significantly higher on Psychoticism and Self-efficacy than Instructors and Nonparticipants. In conclusion, these test scores suggest that people who are attracted to high risk sports tend to be at the extroverted and emotionally stable end of the scale, with a tendency to exhibit Type A characteristics; however, Instructors' scores on Psychoticism and Self-efficacy are more akin to those of Nonparticipants.     

Career decision-making self-efficacy of South African high school boys and girls

Social cognitive career theory suggests that males and females may not differ in career decision-making self-efficacy, but this statement requires extension of research to high school samples. The Career Decision-making Self-efficacy Scale-Short Form was administered to white South African high school students in Grades 9 to 11, of whom 368 were boys and 494 girls. No significant sex differences were found, suggesting that career interventions based on social cognitive career theory in high school need not be sex-specific in content.     

Match makers and deal breakers: analyses of assortative mating in newlywed couples

We conducted a comprehensive analysis of assortative mating (i.e., the similarity between wives and husbands on a given characteristic) in a newlywed sample. These newlyweds showed (a) strong similarity in age, religiousness, and political orientation; (b) moderate similarity in education and verbal intelligence; (c) modest similarity in values; and (d) little similarity in matrix reasoning, self- and spouse-rated personality, emotional experience and expression, and attachment. Further analyses established that similarity was not simply due to background variables such as age and education and reflected initial assortment (i.e., similarity at the time of marriage) rather than convergence (i.e., increasing similarity with time). Finally, marital satisfaction primarily was a function of the rater's own traits and showed little relation to spousal similarity.     

Experience, context, and the visual perception of human movement

Why are human observers particularly sensitive to human movement? Seven experiments examined the roles of visual experience and motor processes in human movement perception by comparing visual sensitivities to point-light displays of familiar, unusual, and impossible gaits across gait-speed and identity discrimination tasks. In both tasks, visual sensitivity to physically possible gaits was superior to visual sensitivity to physically impossible gaits, supporting perception-action coupling theories of human movement perception. Visual experience influenced walker-identity perception but not gait-speed discrimination. Thus, both motor experience and visual experience define visual sensitivity to human movement. An ecological perspective can be used to define the conditions necessary for experience-dependent sensitivity to human movement.