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131.
Zhangfan Shen Vencislav Popov Anita B. Delahay Lynne M. Reder 《Memory & cognition》2018,46(2):204-215
Do the processing and online manipulation of stimuli that are less familiar require more working memory (WM) resources? Is it more difficult to solve demanding problems when the symbols involved are less rather than more familiar? We explored these questions with a dual-task paradigm in which subjects had to solve algebra problems of different complexities while simultaneously holding novel symbol–digit associations in WM. The symbols were previously unknown Chinese characters, whose familiarity was manipulated by differential training frequency with a visual search task for nine hour-long sessions over 3 weeks. Subsequently, subjects solved equations that required one or two transformations. Before each trial, two different integers were assigned to two different Chinese characters of the same training frequency. Half of the time, those characters were present as variables in the equation and had to be substituted for the corresponding digits. After attempting to solve the equation, subjects had to recognize which two characters were shown immediately before that trial and to recall the integer associated with each. Solution accuracy and response times were better when the problems required one transformation only; variable substitution was not required; or the Chinese characters were high frequency. The effects of stimulus familiarity increased as the WM demands of the equation increased. Character–digit associations were also recalled less well with low-frequency characters. These results provide strong support that WM capacity depends not only on the number of chunks of information one is attempting to process but also on their strength or familiarity. 相似文献
132.
Cognitive models propose that self‐focused attention (SFA) interacts with fear of negative evaluation to maintain social anxiety. Thus, the effect of SFA on anxiety would be expected to be specific to those with existing social concerns. However, much research suggests that the effect of SFA on anxiety occurs across anxiety levels. Manipulations of attention focus have been criticised for (1) lack of ecological validity and (2) eliciting fear of negative evaluation directly. The present study examined the role of SFA in social anxiety using an ecologically valid procedure that did not elicit fear of negative evaluation directly. Self‐reported anxiety was assessed among high and low socially anxious individuals under conditions of SFA or external‐focused attention. The manipulation successfully altered focus of attention but did not directly affect fear of negative evaluation or self‐reported anxiety. Taken together with the findings of previous studies, the results suggest that focusing on internal physiological states per se does not increase self‐reported social anxiety, and that self‐focus that does not have an explicitly evaluative dimension does not elicit social anxiety. The findings have implications for approaches to reducing social anxiety through reducing SFA. 相似文献
133.
Despite the existence of effective psychological and pharmacological interventions for obsessive-compulsive disorder (OCD), there are a large proportion of individuals for whom intervention is not effective. The study reports on the results of a community treatment service for individuals with treatment-refractory OCD who have not benefitted from previous cognitive behavioural or pharmacological treatment by community mental health services. A total of 205 individuals accepted for treatment by a specialist community OCD treatment service in London were provided with a combination of behavioural, cognitive, and pharmacological treatment within a specialist OCD service, with 158 completing treatment. Treatment was associated with significant reduction in clinician-rated and self-reported OCD symptoms after 12 weeks, with further reductions in OCD symptoms over a subsequent 12-week period. A significant reduction in symptoms of depression was also observed after 12 and 24 weeks. Approximately 40% of individuals treated experienced clinically significant improvement in their symptoms, with approximately 10% deemed to have recovered by the end of treatment. Our results add to previous research into refractory OCD, and provide support for the existence of specialist community treatment services which may provide assistance to individuals who have not responded to previous treatment. 相似文献
134.
Insufficient data on the nature and extent of children's vulnerability in Uganda has challenged government and donors in priority setting, resource allocation and developing effective approaches to improve well-being. We conducted a population-based survey among a nationally representative sample of 2551 households, covering a total of 7946 children. We engaged national stakeholders in a priority-setting exercise to develop a scoring system to assess dimensions of children's vulnerability. The exercise identified individual and household characteristics to assess vulnerability--many of which had not been measured previously--to which numerical weights representing vulnerability level were assigned. Highly weighted characteristics included maternal death, disability, child labour and pregnancy before age 17. Psychosocial elements included living apart from siblings, having nobody to talk to and never visiting a living parent. According to this approach, an estimated 51.1% of children in Uganda (weighted for national population distribution) are considered critically or moderately vulnerable. It is to these children, equivalent to a national total of 8.7 million, that support services should be prioritised. However, survey data suggest that the most critically vulnerable children are under-represented in several types of support services. This pioneering, participatory methodology provides a rudimentary, but valuable, first step towards quantifying the vulnerability of children in Uganda and assessing their resource needs. It has been used by the Government of Uganda to determine subcategories of vulnerability for resource allocation. A major advantage is that it uses local contextual knowledge of child vulnerability rather than generic criteria applied in international surveys. Further analytical work is required to validate the methodology, link it to child well-being outcomes and devise a practical tool for service providers to refine programme targeting. The approach may be useful to national, regional or local service providers seeking an overview of their client base to monitor and improve programme-targeting efforts. 相似文献
135.
Tore Kristensen Gorm Gabrielsen Judith Lynne Zaichkowsky 《Journal of Consumer Behaviour》2012,11(1):44-55
Preferences for similarly designed consumer products, evaluated blind and branded and also with and without prices, were tested in a consumer setting. The consumer's perceptual experience led to preference of the well‐crafted high‐priced option. This preference was enhanced by priming consumers with background information about the brand, perhaps causing the subjects to guess which choice was the well‐known brand before evaluation. Preferences for that choice increased again when brand names were visible during evaluation. When actual prices were added to the evaluations, preferences for the well‐known brand were very robust to high prices, indicating the strength of the brand name. Using the least preferred option and the lowest price as an anchor, the consumers' price threshold to pay for the preferred design and the brand name was computed. Attempts to explain and predict individual differences of choices using measures of inherent design acumen, prior experience, and purchasing behavior were largely unsuccessful. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
136.
Lynne D. Richardson John E. Swan Cecilia McInnis-Bowers 《Journal of Personal Selling & Sales Management》2013,33(4):31-39
Samples used in sales force research studies found in JM, JMR, JPSSM, and IMM over a seventeen year period were examined to discover the extent to which sales force sampling has met the issues of covering different industries and types of salespeople, of satisfying technical sampling requirements, and of clearly reporting on sampling methods. Recommendations for improving standards for conducting and reporting sales force sampling methodology in terms of the resources available are offered. 相似文献
137.
Mark Cropley Lynne Millward Purvis 《European Journal of Work and Organizational Psychology》2013,22(3):195-207
Previous research has suggested that high job strain (high demand, low control at work) is associated with an inability to “unwind” physiologically after work. It was speculated that one mechanism related to the “unwinding process” is an individual's ability to “cognitively switch-off” about work related issues after work. This hypothesis was tested in a diary study of primary and secondary school teachers who were asked to keep an hourly record of their work-related thoughts over a workday evening between 17.00 hrs and 21.00 hrs. As expected both groups demonstrated a degree of unwinding and disengagement from work issues over the evening. High strain (n = 34) teachers however took longer to unwind and ruminated more about work-related issues, relative to low job strain (n = 35) teachers. High job strain teachers also reported they had less personal control over what they were doing in the evening. Across the evening all individuals reported higher ruminative thoughts about work issues when alone than when with family and friends, but high strain teachers reported more ruminative cognitions when watching television and with family and friends than low strain teachers. The results could not be explained by work patterns as there was no difference in the number of hours worked in the evening between the two groups. It is argued that one reason why high job strain teachers failed to successfully unwind after work is that they ruminated more about work issues, than did low job strain teachers. 相似文献
138.
139.
Mary Lynne Dittmar 《The Journal of general psychology》2013,140(4):319-332
The prevalence of video display terminals (VDTs) in data processing settings has encouraged research into the factors affecting proofreading performance in electronic and hard copy formats. The present study undertook the initial investigation of the effect of side-to-side head movements on proofreading from hard copy to VDT. Subjects proofread by visually comparing two lines of alphanumeric code, which simulated original and keyed-in (processed) data, in two display configurations. Speed and accuracy were degraded in the successive (side-to-side) condition, relative to performance with a simultaneous (head-on) VDT display. Subjects' ratings of mental workload mirrored these findings, with workload rated higher in the successive condition. The results are congruent with a taxonomy of sustained attention tasks developed by Davies and Parasuraman (1982), which emphasizes a distinction between tasks requiring working memory and those that do not. Additional implications of the present results for a resource allocation model of proofreading are discussed. 相似文献
140.
Lynne Murray 《Journal of Child Psychotherapy》2013,39(3):362-372
This paper describes research conducted over the past twenty years that was informed by Winnicott's thinking on the importance for child development of the early mother-infant relationship. 相似文献