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871.
It has been found that humans not only tend to avoid the middle routes and prefer the peripheral routes among multiple choices, but also rely on the ‘initial segment strategy’ to select the route. In this paper, we propose a new heuristic which humans apply during route selection: Participants prefer the route whose initial direction lies in the direction of their final destination, while avoiding the route whose initial direction does not. Four maps were designed. The pathways, on different maps, constituted a parallelogram, a rectangle and a square. Pedestrians were instructed to select a route from an origin to a destination on one of the maps. The results confirm the application of the newly proposed heuristic. Other possible factors, such as handedness, route angles and occurrence of turns were excluded. Moreover, the heuristics of deferring decision and relying on initial straightness are not supported. Copyright © 2010 John Wiley & Sons, Ltd.  相似文献   
872.
Depressive disorders in childhood are not easily identifiable as distinct nosologic entities because of high comorbidity and developmental specificities of their appearance. Psychopathologic developments show that early recognition and prevention of depressive disturbances have a high relevance in health care. In the following article the authors present the basic principles of the psychoanalytic short-term therapy (PaKT) for the treatment of affective disturbances and emotional symptoms in childhood which they worked out as therapy guidelines in form of a manual.  相似文献   
873.
In this study, 148 Portuguese adults (M = 45.4 years) rated themselves and their children on overall IQ and on H. Gardner (1999) 10 intelligence subtypes. Men's self-estimates were not significantly higher than women's on any of the 11 estimates. The results were in line with previous studies, in that both sexes rated the overall intelligence of their first male children higher than the first female children. Higher parental IQ self-estimates correspond with higher IQ estimates for children. Globally parents estimated that their sons had significantly higher IQs than their daughters. In particular, parents rated their son's spiritual intelligence higher than those of their daughters. Children's age and sex, and parents' age and sex were all non-significant predictors of the overall "g" score estimates of the first two children. Participants thought verbal, mathematical, and spatial intelligence were the best indicators of the overall intelligence for self and children. There were no sex differences in experience of, or attitudes towards, intelligence testing. Results are discussed in terms of the growing literature in the self-estimates of intelligence, as well as limitations of that approach.  相似文献   
874.
Much of humans’ success rests on foresight, the ability to predict what will happen or what is needed in the future. Surprisingly little is known about how this faculty develops. In three experiments (N = 170), 3‐ and 4‐year‐old children were presented with simple puzzles. Fifteen minutes later in a different room they were given the opportunity to secure a solution to take back to the puzzle. Only the older children performed above chance, whereas both age groups could solve the task in an instant condition. The same pattern of results emerged for another task involving selection of something to ‘feed ’ a puppet whose favorite food was initially unavailable. Control conditions suggest that temporal rather than spatial displacement influenced performance. Verbal reports substantiated the conclusion that by age 4 some children can remember a novel problem sufficiently enough to recognize a solution and select that solution in anticipation of applying it to the problem in the future.  相似文献   
875.
Either despite or because of their non-traditional approach, megachurches have grown significantly in the United States since 1980. This paper models religious participation as an imperfect public good which, absent intervention, yields suboptimal participation by members from the church’s perspective. Megachurches address this problem in part by employing secular-based group activities to subsidize religious participation that then translates into an increase in the attendees’ religious investment. This strategy not only allows megachurches to attract and retain new members when many traditional churches are losing members but also results in higher levels of an individual’s religious capital. As a result, the megachurch may raise expectations of members’ levels of commitment and faith practices. Data from the FACT2000 survey provide evidence that megachurches employ groups more extensively than other churches, and this approach is consistent with a strategy to use groups to help subsidize individuals’ religious investment. Religious capital rises among members of megachurches relative to members of non-megachurches as a result of this strategy.  相似文献   
876.
Movement variability and skill level of various throwing techniques   总被引:1,自引:0,他引:1  
In team-handball, skilled athletes are able to adapt to different game situations that may lead to differences in movement variability. Whether movement variability affects the performance of a team-handball throw and is affected by different skill levels or throwing techniques has not yet been demonstrated. Consequently, the aims of the study were to determine differences in performance and movement variability for several throwing techniques in different phases of the throwing movement, and of different skill levels. Twenty-four team-handball players of different skill levels (n=8) performed 30 throws using various throwing techniques. Upper body kinematics was measured via an 8 camera Vicon motion capture system and movement variability was calculated. Results indicated an increase in movement variability in the distal joint movements during the acceleration phase. In addition, there was a decrease in movement variability in highly skilled and skilled players in the standing throw with run-up, which indicated an increase in the ball release speed, which was highest when using this throwing technique. We assert that team-handball players had the ability to compensate an increase in movement variability in the acceleration phase to throw accurately, and skilled players were able to control the movement, although movement variability decreased in the standing throw with run-up.  相似文献   
877.

Background

Increased sensitivity to proactive (PI) and retroactive (RI) interference has been observed in amnestic mild cognitive impairment (aMCI). PI and RI are often explained as being the result of a response competition mechanism. However, patients with aMCI are supposed to suffer mostly from encoding deficits. We hypothesized that in aMCI interference may occur at encoding and not only at the retrieval stage.

Material and methods

We developed an original paradigm enabling PI and RI to be tested with and without response competitors. Eighteen young controls (YC), 16 elderly controls (EC) and 15 aMCI participated in the study.

Results

The YC and EC groups presented interference effects only in conditions that included a direct response competitor. In contrast, aMCI had interference effects in all conditions including the one without response competitor.

Conclusion

Increased sensitivity to interference in aMCI appears to occur at the encoding/consolidation stage and not only at the retrieval stage, as is the case in healthy subjects. This result is discussed in the context of the associative encoding deficits characterizing aMCI.  相似文献   
878.
This paper examined the moderating role of positive and negative affect in the relationship between distributive justice expectations and applicants' intentions to recommend the organization or to litigate. Specifically, it was suggested and supported in two samples of, respectively, 1,409 and 486 applicants, that the positive relationship between distributive justice expectations and recommendation intentions was stronger for applicants high in positive affect. In the second sample, it was further found that the negative relationship between distributive justice expectations and litigation intentions was stronger among applicants high in negative affect. This research is the first to identify the distinct roles of positive and negative affect in shaping responses to expectations of (un)fairness in the personnel selection literature. Theoretical and practical implications are discussed.  相似文献   
879.
Psychosocial stress precipitates a wide spectrum of diseases with major public-health significance. The fight-or-flight response is generally regarded as the prototypic human stress response, both physiologically and behaviorally. Given that having positive social interactions before being exposed to acute stress plays a preeminent role in helping individuals control their stress response, engaging in prosocial behavior in response to stress (tend-and-befriend) might also be a protective pattern. Little is known, however, about the immediate social responses following stress in humans. Here we show that participants who experienced acute social stress, induced by a standardized laboratory stressor, engaged in substantially more prosocial behavior (trust, trustworthiness, and sharing) compared with participants in a control condition, who did not experience socioevaluative threat. These effects were highly specific: Stress did not affect the readiness to exhibit antisocial behavior or to bear nonsocial risks. These results show that stress triggers social approach behavior, which operates as a potent stress-buffering strategy in humans, thereby providing evidence for the tend-and-befriend hypothesis.  相似文献   
880.
Abstract The present study examined the relations between temperamental traits distinguished in regulative theory of temperament, state anxiety, and metacognition as postulated in self-regulatory executive function (S-REF) theory of emotional disorder. Data analysis (n=315) consisted of independent and mediated effect analyses. Of the six traits, briskness, emotional reactivity and perseveration correlated significantly with both state anxiety and metacognitions (emotional reactivity and perseveration correlated positively, and briskness - negatively). These traits were predictors of state anxiety. Metacognition predicted state anxiety and relationships were independent of temperament. A mediating effect of metacognition was confirmed for the general index as well as negative and positive belief subscales. The findings support the metacognitive model of psychopathology and suggest that temperament is associated with metacognitions implicated in psychopathology and may have both direct and metacognitively mediated effects on anxiety.  相似文献   
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