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621.
Claire M. Hart Constantine SedikidesTim Wildschut Jamie ArndtClay Routledge Ad J.J.M. Vingerhoets 《Journal of research in personality》2011,45(2):238-242
Two functions of nostalgia are consistently documented in the literature: self-positivity and social connectedness. These reflect agency and communion, respectively. Such dimensions are polarized no more than in narcissists, who are high in agency and low in communion. In three studies we tested whether high and low narcissists differ in the content of nostalgic recollections, whether they become nostalgic about different objects, and whether nostalgia serves different functions for them. High (versus low) narcissists made more agentic references in their narratives and manifested nostalgic proclivity toward agentic objects. Furthermore, nostalgia served a self-positivity function, but not a social connectedness function, for high (versus low) narcissists. Findings highlight the relevance of personality—narcissism, in particular—for the experience of nostalgia. 相似文献
622.
The processing-speedtheory and the prefrontal-executivetheory are competing theories of cognitive aging. Here we used a theoretically and methodologically-driven framework to investigate the relationships among measures classically used to assess these two theoretical constructs. Twenty-eight young adults (18-32 years) and 39 healthy older adults (65-80 years) performed a battery of nine neuropsychological and experimental tasks assessing three executive function (EF) components: Inhibition, Updating, and Shifting. Rate of information processing was evaluated via three different experimental and psychometric tests. Partial correlations analyses suggested that 2-Choice Reaction Time (CRT) performance is a more pure measure of processing speed than Digit Symbol Substitution Test (DSST) performance in the elderly. Hierarchical regression analyses showed that, although measures of processing speed and EF components share mutual variance, each measure was independently affected by chronological age. The unique adverse effect of age was more important for processing speed than for EF. The processing-speed theory and the prefrontal-executive theory of cognitive aging were shown not to be mutually exclusive but share mutual variance. This implies the need to control for their mutual relationship before examining their unique potential role in the explanation of age-related cognitive declines. Caution has still to be taken concerning the tasks used to evaluate these theoretical constructs. 相似文献
623.
Schizophrenia is characterized by heterogeneous brain abnormalities involving cerebral regions implied in the executive functioning. The dysexecutive syndrome is one of the most prominent and functionally cognitive features of schizophrenia. Nevertheless, it is not clear to what extend executive deficits are heterogeneous in schizophrenia patients. Furthermore, it is still unknown if the executive impairments observed in schizophrenia are better characterized as specific or as reflecting generalized cognitive factors. The four executive processes (i.e. updating, inhibition, shifting and divided attention) described in Miyake et al.'s (2000) theoretical model were examined in 62 individuals with schizophrenia and 49 healthy controls. At group level, impairments in all four executive processes confirmed the marked impairment in executive functioning in patients with schizophrenia. Statistical analysis indicated that executive performances in schizophrenia patients were more heterogeneous than in healthy controls. Compared with standardized norms, 94% of patients exhibited impairment in at least one of the executive tasks. Twenty-one percent of patients exhibited impairment in one executive task, 27% in two tasks, 23% in three executive tasks and 23% exhibited impairments in the four executive tasks. Six percent of patients had normal executive profile. Regression analysis indicated that only premorbid intellectual quotient and a general slowing in processing speed predicted the executive dysfunction severity. Executive functioning was not affected by age, duration of illness, psychotic status, or by antipsychotic dosage. Our results emphasize the heterogeneity of the dysexecutive syndrome in schizophrenia when individual profile analysis is considered, and extend the view that individual cognitive differences in schizophrenia are largely underlined by general cognitive factors such as intellectual level and general processing speed. 相似文献
624.
Kelly L. Haws Rebecca Walker Naylor Robin A. Coulter William O. Bearden 《Journal of Consumer Psychology》2012,22(2):224-236
This research introduces product retention tendency, a consumer lifestyle trait characterized by an individual's propensity to retain consumption-related possessions. We develop a parsimonious measure of product retention tendency. Next, we report on the results of two studies designed to contrast product retention tendency with clinical compulsive hoarding, examining the relationships between these different types of keeping behavior as related to waste avoidance and product attachment tendencies. Three experimental studies examine the relationship between product retention tendency and the decision to retain versus relinquish different types of possessions, including used and in- need-of-repair durables, as well as perishable possessions. 相似文献
625.
Theodor J. Stewart 《Journal of Multi-Criteria Decision Analysis》1996,5(4):301-309
A simulation model is constructed of choice between a discrete number of non-dominated alternatives. The long-run goals of the decision maker are assumed to be consistent with a hypothetical preference structure which satisfies assumptions of completeness, transitivity and additive independence for an ideal set of criteria. The use of additive value functions to aid the decision maker in this choice is simulated for a variety of contexts and under a number of non-idealities such as the omission of criteria, confounding of criteria and inconsistent responses. It is found that ideal preference orderings are well identified by additive value functions provided that the non-idealities are moderate and that sufficient effort is put into modelling changing marginal values for different levels of performance. One of the potentially most sensitive areas is that of shifts in the decision maker's reference points as a result of the types of preference information asked. 相似文献
626.
Sébastien Monette Marc Bigras Marie‐Claude Guay 《The British journal of developmental psychology》2015,33(4):446-463
Executive function (EF) deficits have yet to be demonstrated convincingly in children with disruptive behaviour disorders (DBD), as only a few studies have reported these. The presence of EF weaknesses in children with DBD has often been contested on account of the high comorbidity between DBD and attention‐deficit/hyperactivity disorder (ADHD) and of methodological shortcomings regarding EF measures. Against this background, the link between EF and disruptive behaviours in kindergarteners was investigated using a carefully selected battery of EF measures. Three groups of kindergarteners were compared: (1) a group combining high levels of disruptive behaviours and ADHD symptoms (COMB); (2) a group presenting high levels of disruptive/aggressive behaviours and low levels of ADHD symptoms (AGG); and (3) a normative group (NOR). Children in the COMB and AGG groups presented weaker inhibition capacities compared with normative peers. Also, only the COMB group showed weaker working memory capacities compared with the NOR group. Results support the idea that preschool children with DBD have weaker inhibition capacities and that this weakness could be common to both ADHD and DBD. 相似文献
627.
ABSTRACTMilitary spouses face numerous challenges in obtaining employment as a result of their connection to the military. Previous research has linked military spouses underemployment to reduced well-being and satisfaction with military life, which in turn impacts on retention of the service person. In response to this the UK Ministry of Defence (MOD) trialed a 2 year programme of employment support for spouses in 2015. This paper reports the findings of a qualitative evaluation of this programme and its impact on spouses. Interviews were carried out with 30 spouses and 23 of their serving partners to examine the benefits and impact of the support provided. The majority of spouses and their serving partners perceived the employment support as providing a positive contribution from the military to help spouses get back into employment or improve their employability. Additionally, spouses felt invested in by the military and valued as constituents in their own right. No impact of employment support for spouses on the intention to remain or leave the Armed Forces was identified. Longitudinal follow up will be required to determine any long-term impact of employment support on employment outcomes and retention. 相似文献
628.
629.
David G Loughrey Ernest Mihelj Brian A Lawlor 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2021,28(1):1-25
ABSTRACT This study investigated the association between age-related hearing loss (ARHL) and differences in response efficiency and variability on a sustained attention task. The study population comprised 32 participants in a hearing loss group (HLG) and 34 controls without hearing loss (CG). Mean reaction time (RT) and accuracy were recorded to assess response efficiency. RT variability was decomposed to examine temporal aspects of variability associated with neural arousal and top-down executive control of vigilant attention. The HLG had a significantly longer mean RT, possibly reflecting a strategic approach to maintain accuracy. The HLG also demonstrated altered variability (indicative of greater decline in neural arousal) but maintained executive control that was significantly predictive of poorer response efficiency. Adults with ARHL may rely on higher-order attention networks to compensate for decline in both peripheral sensory function and in subcortical arousal systems which mediate lower-order automatic neurocognitive processes. 相似文献
630.
AbstractThe ability to recall the temporal order of events develops much more slowly than the ability to recall facts about events. To explore what processes facilitate memory for temporal information, we tested 3- to 6-year-old children (N?=?40) for immediate memory of the temporal order of events from a storybook, using a visual timeline task and a yes/no recognition task. In addition, children completed tasks assessing their understanding of before and after and the executive functions of inhibition using the Day/Night Stroop task and cognitive shifting using the Dimensional Change Card Sort (DCCS) task. Older children (Mage?=?69.25?months) outperformed younger children (Mage?=?52.35?months) on all measures; however, the only significant predictor of memory for the temporal ordering of events was cognitive shifting. The findings suggest that the difficulty in memory for temporal information is related to development of a general cognitive ability, as indexed by the DCCS, rather than specific temporal abilities. 相似文献