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141.
The present research examined the relationship between endogenous glucocorticoids, navigational strategies in a virtual navigation task, and performance on standard neuropsychological assessments of memory. Healthy young adult participants (N = 66, mean age: 21.7) were tested on the 4 on 8 virtual maze (4/8 VM) and standard neuropsychological tests such as the Rey-Osterrieth Complex Figure (RO) and the Rey Auditory Verbal Learning Task (RAVLT), which measure episodic memory. The 4/8 VM differentiates between navigational strategies, where participants either use a hippocampal-dependent spatial strategy by building relationships between landmarks, or a caudate nucleus-dependent stimulus–response strategy by automatizing a pattern of open and closed arms to learn the location of objects within the maze. Degree of stress was assessed by administering the Perceived Stress Scale (PSS) questionnaire. Cortisol samples were taken on two consecutive days upon waking, 30 min after waking, at 11 am, 4 pm, and 9 pm. There was a significant difference in basal levels of cortisol between spatial and response learners. Interestingly, response learners had significantly lower cortisol levels throughout the day. The two groups did not differ in terms of perceived stress as measured with the PSS questionnaire. Moreover, there was no significant correlation between PSS scores and salivary cortisol levels, indicating that the higher cortisol levels in the spatial group were not associated with greater perceived stress. In addition, participants who spontaneously used a spatial strategy performed significantly better on the RAVLT and RO. These data indicate that the cortisol levels in the spatial group may be optimal in terms of episodic memory performance whereas the cortisol levels in the response group may be associated with poorer memory. These results are suggestive of an inverted U-shaped curve describing the effects of basal levels of circulating cortisol on memory in young adults. 相似文献
142.
Tiana Ciccarelli Molly Soberman Taylor Leshuk Hannah Cole Farhana Afreen Laurie A. Manwell 《International journal of psychology》2021,56(2):322-330
Can exposure to a cleanliness prime affect moral judgements towards harm reduction strategies (HRS) for individuals with substance use disorders? Our research examined (a) the effect of a cleanliness prime on attitudes towards HRS and (b) whether this effect would be attenuated by a brief educational presentation. Participants were randomly assigned to a priming condition and an educational presentation condition. Results demonstrated that (a) the cleanliness prime did not shift attitudes towards HRS, however, (b) the educational presentations significantly shifted attitudes to be more positive after the Harm Reduction presentation and more negative after the Healthy Living presentation. The literature on priming is mixed and our results support a growing body of research challenging the robustness of cleanliness priming and also demonstrates that brief presentations can change attitudes. Our research has implications for education on the benefits of HRS in reducing disease transmission, refuse in the community, and overdose deaths. 相似文献
143.
Céline Poletti Jean-François Perez Jean-Charles Houillon Jérôme Prado Catherine Thevenot 《The British journal of developmental psychology》2021,39(3):380-392
In this research, 10- to 12- and 13- to 15-year-old children were presented with very simple addition and multiplication problems involving operands from 1 to 4. Critically, the arithmetic sign was presented before the operands in half of the trials, whereas it was presented at the same time as the operands in the other half. Our results indicate that presenting the ‘x’ sign before the operands of a multiplication problem does not speed up the solving process, irrespective of the age of children. In contrast, presenting the ‘+’ sign before the operands of an addition problem facilitates the solving process, but only in 13 to 15-year-old children. Such priming effects of the arithmetic sign have been previously interpreted as the result of a pre-activation of an automated counting procedure, which can be applied as soon as the operands are presented. Therefore, our results echo previous conclusions of the literature that simple additions but not multiplications can be solved by fast counting procedures. More importantly, we show here that these procedures are possibly convoked automatically by children after the age of 13 years. At a more theoretical level, our results do not support the theory that simple additions are solved through retrieval of the answers from long-term memory by experts. Rather, the development of expertise for mental addition would consist in an acceleration of procedures until automatization. 相似文献
144.
145.
Gerald Matthews Kieran Coyle Angus Craig 《Journal of psychopathology and behavioral assessment》1990,12(1):49-65
Use of the Cognitive Failures Questionnaire (CFQ) in clinical research assumes that the questionnaire measures a single factor. A factor analysis of the CFQ was performed, on a sample of 475 students, using accurate procedures for determining the number of factors. These procedures gave mutually inconsistent results: at least two alternative factor structures can be extracted from the CFQ. An interpretable seven factor solution was found, but the CFQ probably has insufficient items to measure more than two strongly defined factors. The capacity of CFQ multiple factors to predict measures related to stress vulnerability was tested in a further study (N=57). Correlations between CFQ total score and neuroticism and use of coping strategies appeared to depend mainly on a single CFQ multiple factor, related to failures of concentration. Some of the other CFQ factors predicted other criteria. Further research on multiple factors of cognitive failure might improve the validity of the CFQ as a predictor of stress vulnerability and of cognitive performance. 相似文献
146.
如何开展员工情绪劳动管理,避免负面行为结果,是服务行业面对的重要问题。以788名呼叫中心员工为研究对象,本文获得的结果表明:1)表层动作显著促进主动破坏行为,而深层动作的影响不显著。2)政策强度感知显著调节表层动作与主动破坏行为间关系;当政策强度感知较低时,表层动作对主动破坏行为的正向影响更为显著。3)情感社会分享显著调节深层动作与主动破坏行为间关系;当情感社会分享水平较高时,深层动作对主动破坏行为的负向影响更为显著。本研究从资源保存视角提出工作场所开展情绪劳动管理的有效策略。 相似文献
147.
我国正处于人口老龄化、脑血管病患者迅速增加的时期,针对各地千差万别的医疗水平,系统梳理和总结国内外脑血管病有关指南及规范的基础上,强调了脑血管病的预防的重要性,并提出我国数种常见脑血管病的治疗策略选择的意见及建议。 相似文献
148.
149.
Representation and Reasoning about Evolutions of the World in the Context of Reasoning about Actions
The first step in reasoning about actions and change involves reasoning about how the world would evolve if a certain action
is executed in a certain state. Most research on this assumes the evolution to be only a single step and focus on formulating
the transition function that defines changes between states due to actions. In this paper we consider cases where the evolution
is more than just a single change between one state and another. This is manifested when the execution of an action may trigger
execution of other actions, or when multiple agents act on the environment following certain strategies. 相似文献
150.
Abstract The purpose of this study was to test a mediational model of risk and protective factors associated with the psychological adjustment of caregivers of head-injured patients. Forty-three caregivers of patients who had suffered a head injury participated in the study. Findings strongly supported hypotheses. Caregiver burden was associated with poorer psychological adjustment. Social support and a higher percentage of approach coping strategies relative to overall coping strategies were associated with better psychological adjustment. As predicted, caregiver burden showed a direct relationship to psychological adjustment, while social support showed an indirect relationship to adjustment mediated by percentage approach coping. 相似文献