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251.
We investigated the extent to which parameters of environmental shape – namely the major and minor principal axes of space which pass through the centroid and approximate length and width of the entire space, respectively, were subject to similar psychophysical principles as those involved in distance discriminations. We developed an orientation task that allowed us to manipulate the ratio of the major to the minor principal axes of an enclosure during training and control for orientation by alternative cues other than principal axes such as wall lengths or corner angles during testing. Participants trained in an environment with a larger hypothetical discriminability ratio allocated more responses to locations specified by the principal axes of space across novel enclosure types compared to a group trained with a smaller hypothetical discriminability ratio. Results suggest that psychophysical principles may operate on the discrimination of environmental shape parameters and delineate a potential mechanism for experiential and developmental changes in orientation ability.  相似文献   
252.
This review aims to discuss the evidence supporting the link between chronic stress, cognitive function and mental health. Over the years, the associations between these concepts have been investigated in different populations. This review summarizes the findings that have emerged from older populations as well as from populations suffering from pathological aging, namely Mild Cognitive Impairment and Alzheimer's Disease. Although older adults are an interesting population to study in terms of chronic stress, other stress-related diseases can occur throughout the lifespan. The second section covers some of these stress-related diseases that have recently received a great deal of attention, namely burnout, depression, and post-traumatic stress disorder. Given that chronic stress contributes to the development of certain pathologies by accelerating and/or exacerbating pre-existing vulnerabilities that vary from one individual to the other, the final section summarizes data obtained on potential variables contributing to the association between chronic stress and cognition.  相似文献   
253.
Male-male competition can shape some behavioral or morphological traits of males. Here we investigate if this competition could play a role in the persistence of the polymorphism of handedness in human populations. A negative frequency-dependent selection mechanism has been hypothesized, based on the fact that left-handed men may benefit from a "surprise" advantage during fighting interactions because they are rare in human populations. This advantage may thereby enhance the probability of survival of left- handed men and/or their reproductive success through an increase in social status. In this study, we first explored the association between hand preference and lifetime fighting behavior in a population of 1,161 French men. No effect of hand preference on the probability of fighting was detected, suggesting that the innate propensity to fight does not differ between left- and right-handers. However, among men who had been involved in at least one fight during their lifetime, left-handers reported significantly more fights than right-handers. To explore the biological basis of this behavior, we also investigated the testosterone concentration in saliva samples from 64 French university students. Consistent with frequencies of fights, we found a significantly higher average testosterone concentration in left-handers than in right-handers. We suggest that these behavioral and hormonal differences may be acquired throughout life due to previous experiences in a social context and may favor the persistence of left-handers in humans.  相似文献   
254.
This article explores the interaction between global sentence context and local syntactic decision making. Specifically, four noun phrase (NP) structural priming experiments investigated whether the position of an NP within a sentence increased speakers' tendency to repeat primed structure. We crossed the position of the NP with the structure of the NP, such that NPs could be sentence initial or final in prime sentences. We further manipulated whether the to-be-modified target NP was sentence initial or final. Structural persistence effects were consistently observed, but there was no influence of parallel position. Rather, sentence-initial NP primes had a stronger influence on subsequent syntactic decisions than sentence-final primes, suggesting a primacy effect. Sentence-initial target NPs contributed to this primacy effect, while sentence-final target NPs did not. We argue that this primacy effect arises as the result of greater processing demands and resources for early than for late sentence constituents as well as deeper encoding and more focused attention when processing the beginnings of sentences.  相似文献   
255.
There remains a need for counselors well-prepared to work with ex-offenders. As counselors aim to meet ethical obligations toward advocacy, they often seek to address social determinants of health (SDOH) challenges. Those working with ex-offenders should be aware of unique employment challenges ex-offenders may face and possess a baseline knowledge of the justice system for pertinent collaboration. This paper provides an explanation of how the Systems Theory Framework may be used to address ex-offenders’ employment-related needs through addressing SDOH challenges and collaborating with the justice system. Implications for employment counselors, counselor educators, and supervisors and steps for future research conclude.  相似文献   
256.
Background and Objectives: Simultaneous exposure to time, cognitive, and emotional demands is a feature of the work environment for healthcare workers, yet effects of these common stressors in combination are not well established. Design: Survey data were collected from 125 hospital employees (Sample 1, Study 1), 93 ambulance service employees (Sample 2, Study 1), and 380 aged care/disability workers (Study 2). Methods: Hierarchical multiple regressions were conducted. Results: In Sample 1, high cognitive demand exacerbated high emotional demand on psychological strain and job burnout, whereas the negative effect of high emotional demand was not present at low cognitive demand. In Sample 2, a similar pattern between emotional demand and time demand on stress-remedial intentions was observed. In Study 2, emotional demand?×?time demand and time demand?×?cognitive demand interactions again revealed that high levels of two demands were stress-exacerbating and low levels of one demand neutralized the other. A three-way interaction on job satisfaction showed the negative impact of emotional demand was exacerbated when both time and cognitive demands were high, creating a “triple disadvantage” of job demands. Conclusions: The results demonstrate that reducing some job demands helps attenuate the stressful effects of other job demands on different employee outcomes.  相似文献   
257.
The current study investigated the use of selection, optimization, and compensation (SOC) in association with momentary goal conflict and facilitation in middle adulthood. In contrast to previous studies on SOC that focused on the habitual use of the SOC-strategies, the current study investigated the momentary SOC-use in the everyday lives of adults who face the developmental challenge of combining the demands of multiple life domains (e.g., work, family, leisure). In a sample of N = 89 employed middle-age adults, momentary SOC-use as well as momentary goal conflict and facilitation were assessed in a measurement burst design encompassing 20 days (M = 126 measurement points per person). Time-lagged analyses showed that momentary goal conflict was positively related to subsequent optimization and compensation, and momentary goal facilitation lead to lower subsequent loss-based selection and compensation. In contrast, SOC predicted neither subsequent goal conflict nor facilitation. Thus, the use of SOC-strategies seems to be a response to – rather than an antecedent of - currently experienced goal relations (conflict, facilitation), underscoring the importance of these strategies for managing multiple goals.  相似文献   
258.
The aim of this study was to investigate possible effects of antisocial behavior on reducing the association between subdimensions of ADHD symptoms (inattention, hyperactivity and impulsivity) and alcohol use. Boys and girls were analyzed separately using a population‐based Swedish adolescent sample. A randomly selected cross‐sectional survey was performed in secondary and upper secondary schools in Västmanland County during 2010. Participants were a population of 2,439 15–16 year‐olds and 1,425 17–18 year‐olds (1,947 girls and 1,917 boys). Psychosocial adversity, antisocial behaviors, symptoms of ADHD and alcohol use were assessed by questionnaires. Except for girls' inattention, subdimensions of ADHD symptoms were not associated with alcohol use when variance due to antisocial behavior was accounted for. Among boys, instead of an indirect effect of antisocial behavior on the association between impulsivity and alcohol use, a moderating effect was found. Among girls, the inattention component of ADHD was independently associated with alcohol use even when adjusted for antisocial behavior. The reduced associations between symptoms of hyperactivity, impulsivity, and alcohol use for boys and girls after adjusting for antisocial behavior suggest a considerable overlap between hyperactivity, impulsivity, and antisocial behavior. The direct pathway between inattention and alcohol use among girls suggests that girls with inattention symptoms are at risk of alcohol use regardless of antisocial behavior. Special attention should be given to these girls. Accounting for antisocial behavior reduced the relation between subdimensions of ADHD symptoms and alcohol use, and antisocial behaviors should therefore be screened for when symptoms of ADHD are present.  相似文献   
259.
Unconscious Emotion   总被引:1,自引:0,他引:1  
Abstract— Conscious feelings have traditionally been viewed as a central and necessary ingredient of emotion. Here we argue that emotion also can be genuinely unconscious. We describe evidence that positive and negative reactions can be elicited subliminally and remain inaccessible to introspection. Despite the absence of subjective feelings in such cases, subliminally induced affective reactions still influence people's preference judgments and even the amount of beverage they consume. This evidence is consistent with evolutionary considerations suggesting that systems underlying basic affective reactions originated prior to systems for conscious awareness. The idea of unconscious emotion is also supported by evidence from affective neuroscience indicating that subcortical brain systems underlie basic "liking" reactions. More research is needed to clarify the relations and differences between conscious and unconscious emotion, and their underlying mechanisms. However, even under the current state of knowledge, it appears that processes underlying conscious feelings can become decoupled from processes underlying emotional reactions, resulting in genuinely unconscious emotion.  相似文献   
260.
A number of experimental data have shown that naming latency increases with length for pseudo-words but not for frequent real words. Different interpretations have been proposed by current models of reading to account for such a length effect. The aim of the present study was to assess the impact of lexicality on length effect in both the reading and lexical decision tasks. For this purpose, skilled readers were asked to either name or make a lexical decision on words and pseudo-words differing in length from one to three syllables. Skilled readers' results show that length effect is modulated by lexicality in the reading task but no length effect was found in the lexical decision task. The tasks were further proposed to a well-compensated dyslexic participant who exhibited a visual attentional disorder in the absence of any associated phonological problems. A length effect on RTs was found for both words and pseudo-words in lexical decision but naming latencies were affected by length for the pseudo-words only. The present results largely conform to the predictions of the ACV98 model of reading. They are not compatible with the PDP models of reading and can only be partially accounted for by dual route models.  相似文献   
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