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741.
Ana R. S. Martins Felipe Fregni Marcel Simis 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2017,24(2):158-185
Increases in life expectancy have been followed by an upsurge of age-associated cognitive decline. Transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS) have risen as promising approaches to prevent or delay such cognitive decline. However, consensus has not yet been reached about their efficacy in improving cognitive functioning in healthy older adults. Here we review the effects of TMS and tDCS on cognitive abilities in healthy older adults. Despite considerable variability in the targeted cognitive domains, design features and outcomes, the results generally show an enhancement or uniform benefit across studies. Most studies employed tDCS, suggesting that this technique is particularly well-suited for cognitive enhancement. Further work is required to determine the viability of these techniques as tools for long-term cognitive improvement. Importantly, the combination of TMS/tDCS with other cognitive enhancement strategies may be a promising strategy to alleviate the cognitive decline associated with the healthy aging process. 相似文献
742.
Analyzing the returns of the first transaction satisfaction on intention to purchase and willingness to pay: Evidence for new food products 下载免费PDF全文
The present study sheds light on the kind of relationships that link first transaction consumer satisfaction (CS), purchase intention, and willingness to pay for new food products. The article presents a comparative evaluation of linear and nonlinear quadratic and cubic specifications used to assess the relationships involved. The study uses empirical evidence from three product‐testing field experiments with consumers in different natural settings such as at‐home and out‐of‐home. Statistical tests with structural equation modeling reveal that, for new food products, the CS–purchase intention relationship is characterized by a nonlinear functional form with increasing marginal returns, while the CS–willingness to pay relationship is defined by a linear functional form with constant marginal returns. The study contributes to the existing body of knowledge that so far has mainly described the relationship between cumulative CS and profit chain outcomes in the context of established products (brands). We discuss the implications for managers responsible for launching new food products and give hints on allocating resources to the most probable customers. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
743.
Amy Weisman de Mamani Marc J. Weintraub Kayla Gurak Jessica Maura Ana Martinez de Andino Caitlin A. Brown 《Journal of Religion, Spirituality & Aging》2017,29(4):226-247
Caring for a person with dementia often results in depression, anxiety, and reduced quality of life (QoL). Pinpointing beliefs and practices that reduce this distress is imperative. The current study tested the hypotheses that greater free will perceptions and religious coping would be associated with greater QoL and other mental health indicators in a sample of 107 dementia caregivers. The results of regression and content analyses supported the expectation that free will and religious coping would be associated with greater QoL. Relationships also emerged among free will perceptions, religious coping, anxiety, and depression. Clinical implications are discussed. 相似文献
744.
Olivia Morgan Lapenta Ana Paula Xavier Sônia Cavalcanti Côrrea Paulo Sérgio Boggio 《Behavior research methods》2017,49(6):2083-2092
Human action perception is so powerful that people can identify movement efficiently in the absence of pictorial information, such as in point-light displays. Interest is growing in this type of stimulus for research in neuroscience. This interest stems from the advantage of separating the component of pure human action kinematics from other pictorial information, such as facial expression and muscle contraction. Although several groups have previously developed datasets of human point-light actions, due to the lack of datasets composed of daily actions with short durations, we developed 20 biological and 40 control (scrambled) point-light movements by using the technique of recording people wearing reflector patches. The videos are about 1 s long. Subsequently, we performed a judgment task in which 100 participants (50 male and 50 female) evaluated each video according to three categories: human action resemblance, performed action, and gender of actor. We present the mean scores of each evaluation for each video, and further propose a selection of the most suitable videos to be used as human point-light action displays and scrambled point-light displays for control. Finally, we discuss our findings on the gender attributions of the point-light displays. 相似文献
745.
Three fear-conditioning experiments with rat subjects examined the effects of extinction in multiple contexts on a final relapse (renewal) effect that occurred when the extinguished fear cue was tested in a new context (Experiments 1 and 3) or in the context in which fear conditioning had first occurred (Experiment 2). Rats that received extinction in three contexts demonstrated more fear during extinction than rats that received the same number and temporal distribution of extinction trials in one context; extinction was partially lost with each context switch. Although extinction in multiple contexts thus had an impact on extinction behavior, it did not reduce the size of the final renewal effect. Fear during extinction was occasionally positively correlated with fear during final testing, but the two were never negatively correlated. The results suggest that extinction in multiple contexts does not necessarily weaken fear renewal, and that extinction procedures that generate high levels of responding in extinction do not necessarily make extinction learning less context-specific. 相似文献
746.
Flexibility in conceptual projection constitutes one of the most challenging issues in the embodiment and conceptual metaphor literatures. We sketch a theoretical proposal that places the burden of the explanation on attentional dynamics in interaction with mental models in working memory that are constrained to be maximally coherent. A test of this theory is provided in the context of the conceptual projection of time onto the domain of space. Participants categorized words presented at different spatial locations (back–front, left–right) as referring to the past or to the future. Responses were faster when the irrelevant word location was congruent with the back–past, front–future metaphoric mapping. Moreover, when a new highly task-relevant spatial frame of reference was introduced, it changed the projection of past and future onto space in a way that was congruent with the new frame (past was now projected to left space and future to right space), as predicted by the theory. This study shows that there is substantial flexibility in conceptual projection and opens a venue to study metaphoric variation across tasks, individuals, and cultures as the result of attentional dynamics. 相似文献
747.
Differential age effects on attention-based inhibition: inhibitory tagging and inhibition of return 总被引:1,自引:0,他引:1
The purpose of this study was to determine whether 2 forms of attentional inhibition, inhibition of return (IOR) and inhibitory tagging, are differentially affected by the aging process. The authors tested 24 younger adults (mean age = 22 years) and 24 older adults (mean age = 69 years) on a combined IOR and Stroop task (Vivas & Fuentes, 2001). As predicted, younger adults' performance was consistent with inhibitory tagging of objects at inhibited locations. Although older adults demonstrated intact IOR, there was no evidence of inhibitory tagging. The results suggest that age deficits in inhibition are selective. 相似文献
748.
Calvete E Estévez A Landín C Martínez Y Cardeñoso O Villardón L Villa A 《The Spanish journal of psychology》2005,8(1):56-67
The aim of this study was to develop a Self-Talk Inventory for young adults. This inventory consisted of two scales. The Negative Self-Talk Scale included three categories of self-talk (depressive, anxious, and angry thoughts) and the Positive Self-Talk Scale, three categories (minimization, positive orientation, and coping self-instructions). Participants were 982 undergraduate students (Mean age = 20.35 years, SD = 2.16). They completed the self-talk scales together with the following scales to measure symptoms of affective disorders: the Center for Epidemiological Studies Depression Scale (CES-D), the State-Trait Anxiety Inventory (STAI), and the State-Trait Anger Expression Inventory (STAXI-T). Factor analyses confirmed the hypothesized structure for the Self-Talk Inventory. The relations between self-talk and symptoms of affective disorders (depression, anxiety, and anger) were also evaluated. In general, states-of-mind -SOM- ratios and negative cognitions showed a greater association with psychological symptoms than did positive cognitions. Results concerning the cognitive characteristics of depression, anxiety, and anger were mixed and partially supported the cognitive content specificity theory. 相似文献
749.
Gustavo Carlo Maria Vicenta Mestre Paula Samper Ana Tur Brian E. Armenta 《Personality and individual differences》2010,48(8):872-877
There is debate regarding the roles of sociomoral cognitions and emotions in understanding moral development. The short-term longitudinal relations among perspective taking, sympathy, prosocial moral reasoning, prosocial behaviors and aggression in adolescents were examined. Participants were 489 students (M age = 12.28 years, SD = .48; 232 boys) in public and private schools from predominantly middle class families in Valencia, Spain. Students completed measures of perspective taking, sympathy, prosocial moral reasoning, prosocial behaviors, and aggressive behaviors. Overall, structural equation modeling analyses showed that moral reasoning and emotions were interrelated and predicted both prosocial behaviors and aggression. Discussion focuses on the relevance of both social cognitions and emotions in moral development. 相似文献
750.
Ana B. Vivas Ioanna Liaromati Elvira Masoura Katerina Chatzikallia 《Psychological research》2010,74(6):524-531
Castel and colleagues (Percept Psychophys 65(6):970–981, 2003) proposed that visuospatial working memory is needed to retain and update the irrelevant but attended location in an inhibition
of return (IOR) procedure. In a series of three experiments, we re-examined this hypothesis by loading visuospatial working
memory and manipulating the timing of encoding. When the visuospatial memory items were presented right after the cue, as
in Castel et al. (Percept Psychophys 65(6):970–981, 2003), we replicated the lack of IOR in the dual-task condition (Experiment 1). However, when we presented the visuospatial memory
items before the spatial cue, to control for retroactive interference in encoding, we found robust IOR effects (Experiment
2); the effect remained strong even when participants were prevented from using verbal labels to rehearse the memory material
(Experiment 3). We conclude that IOR does not seem to depend on retaining the position of the irrelevant cue in visuospatial
working memory. 相似文献