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1.
The OPTIMAL theory proposes that enhancing expectancies and autonomy facilitate motor performance and learning (Wulf & Lewthwaite). Present study with two experiments aimed to examine this proposition by using a modified dart throwing as motor task. In both experiments, motor learning (i.e., retention test) was enhanced by practice conditions, which enhance expectancies for future performance and support learners’ autonomy. Moreover, they led to significantly superior self-efficacy scores during all acquisition phase, retention, and transfer tests. Findings of the present study provided support for propositions of the OPTIMAL theory. Results are discussed in terms of motivational aspects of enhancing expectancies and autonomy and their role on facilitating motor learning.  相似文献   

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A recent theory of emotional intensity (Brehm, 1999) argues that emotions are functionally identical to motivational states. Like motivational states, the intensity of an emotion should be a joint function of the importance of instigating events and the magnitude of deterrence to the emotion. “Deterrence” is definable as impediments or forces that interfere with the experience or expression of the emotion?reasons for not feeling what one is feeling. When experiencing an emotion, a person will feel it more intensely as the reasons for not feeling that emotion increase, up to a point. When great enough, the reasons for not feeling the emotion overwhelm it and reduce it to a low level. The deterrents investigated thus far have all involved events whose valence opposes the emotion's valence. Two experiments explore the breadth of events that have deterrent power. The first was designed to see if merely anticipating an event of opposite valence has a deterrent effect on an emotion. The second explored whether an affectively neutral stimulus (background noise) would also have deterrent effects. The results of the first experiment partially supported the theory, whereas the results of the second provided complete support.  相似文献   

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Women working in male-dominated environments may find themselves to be the only woman present, and that negative stereotypes about women persist in the environment. This experiment tested women’s performance in solo status (SS: being the only woman present) and under stereotype threat (ST: when women are stereotyped as poor performers). White male and female participants (157) learned information, then tested on it in an opposite-gender (SS) or same-gender group (nonsolo). In addition, the information was described as being traditional math material (ST) or a type of math information impervious to gender stereotypes (no threat). Women performed more poorly in SS than nonsolos, and under ST than no threat. Experiencing both factors was more detrimental to women’s performance than experiencing one or the other. Men’s performance was the same across all conditions. Performance expectancies partially mediated the effect of SS, but not ST, on performance.  相似文献   

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We propose that egotism about one's abilities may be related to good self‐regulation and a lack of self‐control may reduce estimations of aptitudes. Self‐control depletion should lead to more accurate and therefore less lofty predictions of future performances. In two experiments, self‐control depletion was manipulated by having participants either resist tempting cookies or by inhibiting thoughts about a white bear. In both cases, nondepleted participants made bolder predictions about their future performance on a video game than their depleted counterparts. Instead, depleted participants were more modest in their predictions and more accurate in their predictions than nondepleted participants. These findings suggest that depletion undermines self‐assurance in oneself, which may have implications for theories of depressive realism, accuracy, confidence, and goal setting.  相似文献   

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Szalma JL  Teo GW 《Acta psychologica》2012,139(3):471-485
The goal for this study was to test assertions of the dynamic adaptability theory of stress, which proposes two fundamental task dimensions, information rate (temporal properties of a task) and information structure (spatial properties of a task). The theory predicts adaptive stability across stress magnitudes, with progressive and precipitous changes in adaptive response manifesting first as increases in perceived workload and stress and then as performance failure. Information structure was manipulated by varying the number of displays to be monitored (1, 2, 4 or 8 displays). Information rate was manipulated by varying stimulus presentation rate (8, 12, 16, or 20 events/min). A signal detection task was used in which critical signals were pairs of digits that differed by 0 or 1. Performance accuracy declined and workload and stress increased as a function of increased task demand, with a precipitous decline in accuracy at the highest demand levels. However, the form of performance change as well as the pattern of relationships between speed and accuracy and between performance and workload/stress indicates that some aspects of the theory need revision. Implications of the results for the theory and for future research are discussed.  相似文献   

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Many people believe that drinking alcohol reduces cognitive performance, and prior research has shown such expectancy‐related impairment even when people merely thought that the (non‐alcoholic) drink they consumed contained alcohol. This study tested whether subliminal priming with alcohol‐related cues would similarly result in expectancy‐consistent cognitive performance decrements. Additionally, the moderating role of alcohol use was examined. After assessing participants' baseline math performance, participants were primed with alcohol‐related or neutral words and then completed a post‐treatment math task. Whereas impairment expectancies had no influence on math performance in control participants, expectancies predicted math performance for participants primed with alcohol‐related words. As hypothesized, expectancy‐consistent impairment in performance was only observed among high alcohol users. The current findings suggest that, in the presence of alcohol‐related cues in the environment, some people may perform less on cognitive tasks even in the absence of actual or assumed alcohol consumption and without being aware of it. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   

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The present research is based on the notion of confluence—that associated mental elements have a tendency to become more consistent with each other over time, even if some of them are logically irrelevant to the issue at hand. This idea was applied to a voting paradigm where participants were exposed to varying numbers of valenced beliefs about a candidate. Two experiments tested the idea that although valenced beliefs influence attributions and voting intentions, there is an additional process whereby evaluations of irrelevant beliefs also are influenced. Not surprisingly, as more positive or negative beliefs were presented, voting intentions became more positive or more negative, respectively. More dramatically, however, positive or negative evaluations of irrelevant beliefs became more extreme in the direction of the presented items as more of them were presented. An additional experiment tested alternative mechanisms. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   

10.
The importance of performance expectancies for predicting behavior has long been highlighted in research on expectancy-value models. These models do not take into account that expectancies may vary in terms of their certainty. The study tested the following predictions: task experience leads to a higher certainty of expectancies; certainty and mean expectancies are empirically distinguishable; and expectancies held with high certainty are more accurate for predicting performance. 273 Grade 8 students reported their performance expectancy and the certainty of expectation with regard to a mathematics examination immediately before and after the examination. Actual grades on the examination were also assessed. The results supported the predictions: there was an increase in certainty between the two times of measurement; expectancies and certainty were unrelated at both times of measurement; and for students initially reporting higher certainty, the accuracy of the performance expectancy (i.e., the relation between expectancy and performance) was higher than for students reporting lower certainty. Given lower certainty, the accuracy increased after the students had experience with the examination. The data indicate that it may be useful to include certainty as an additional variable in expectancy-value models.  相似文献   

11.
Previous research has focused on influences of coping on emotional and behavioural outcomes. Less is known about why people cope in the way they do. Drawing on an appraisal theory of emotion, it was expected that secondary appraisal components would be related to coping. Information on appraisal components, emotions, and coping in relation to a recent work stressor was provided by 107 female nurses. Appraisals were associated with coping in theoretically interpretable ways (e.g. active coping and behavioural disengagement with optimistic and pessimistic appraisals of problem‐focused coping potential, respectively). The study highlighted emotion theory as useful for exploring possible coping antecedents in a conceptually integrated way.  相似文献   

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The present study was conducted in order to assess the effect of distraction on the proof-reading performance of obese restrained and unrestrained eaters. Chronically obese subjects were categorized as restrained or unrestrained and assigned to conditions of distraction and no distraction. Results support the notion that restrained vs unrestrained eaters in the obese class differentially respond to external cues in their non-eating behavior. The pattern of the interaction suggested that distraction facilitates the performance of unrestrained eaters and inhibits the performance of restrained eaters. These results support previous research findings that some characteristics of the obese may be due to the over-representation of restrained eaters in that class. Also, neuroticism was found to be correlated with restraint. Additional analyses indicated that neuroticism moderated the restraint x distraction interaction. The relationship between neuroticism and restraint as well as the therapeutic implications of the study are discussed.  相似文献   

14.
Two experiments demonstrate how individual differences in working memory (WM) impact the strategies used to solve complex math problems and how consequential testing situations alter strategy use. In Experiment 1, individuals performed multistep math problems under low- or high-pressure conditions and reported their problem-solving strategies. Under low-pressure conditions, the higher individuals' WM, the more likely they were to use computationally demanding algorithms (vs. simpler shortcuts) to solve the problems, and the more accurate their math performance. Under high-pressure conditions, higher WM individuals used simpler (and less efficacious) problem-solving strategies, and their performance accuracy suffered. Experiment 2 turned the tables by using a math task for which a simpler strategy was optimal (produced accurate performance in few problem steps). Now, under low-pressure conditions, the lower individuals' WM, the better their performance (the more likely they relied on a simple, but accurate, problem strategy). And, under pressure, higher WM individuals performed optimally by using the simpler strategies lower WM individuals employed. WM availability influences how individuals approach math problems, with the nature of the task performed and the performance environment dictating skill success or failure.  相似文献   

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High‐ and low‐prejudiced participants were presented with a lecture segment in which the race of the professor (White or Black) and lecture quality (high or low) were manipulated. Consistent with predictions, low‐prejudiced participants were more extreme in their evaluations (more negative) and performed more poorly on test items when presented with an expectancy‐violating low‐quality Black lecturer. High‐prejudiced participants were more extreme in their evaluations (more positive) and performed more poorly when presented with an expectancy‐violating high‐quality Black lecturer. Copyright © 1999 John Wiley & Sons, Ltd.  相似文献   

16.
Age-related deficits in selective attention have often been demonstrated in the visual modality and, to a lesser extent, in the auditory modality. In contrast, a mounting body of evidence has suggested that cross-modal selective attention is intact in aging, especially in visual tasks that require ignoring the auditory modality. Our goal in this study was to investigate age-related differences in the ability to ignore cross-modal auditory and visual distraction and to assess the role of cognitive control demands thereby. In a set of two experiments, 30 young (mean age = 23.3 years) and 30 older adults (mean age = 67.7 years) performed a visual and an auditory n-back task (0 ≤ n ≤ 2), with and without cross-modal distraction. The results show an asymmetry in cross-modal distraction as a function of sensory modality and age: Whereas auditory distraction did not disrupt performance on the visual task in either age group, visual distraction disrupted performance on the auditory task in both age groups. Most important, however, visual distraction was disproportionately larger in older adults. These results suggest that age-related distraction is modality dependent, such that suppression of cross-modal auditory distraction is preserved and suppression of cross-modal visual distraction is impaired in aging.  相似文献   

17.
Previous research has shown that performance on problem solving improves over a period of sleep, as compared with wakefulness. However, these studies have not determined whether sleep is beneficial for problem solving or whether sleep merely mitigates against interference due to an interruption to solution attempts. Sleep-dependent improvements have been described in terms of spreading activation, which raises the prediction that an effect of sleep should be greater for problems requiring a broader solution search. We presented participants with a set of remote-associate tasks that varied in difficulty as a function of the strength of the stimuli–answer associations. After a period of sleep, wake, or no delay, participants reattempted previously unsolved problems. The sleep group solved a greater number of difficult problems than did the other groups, but no difference was found for easy problems. We conclude that sleep facilitates problem solving, most likely via spreading activation, but this has its primary effect for harder problems.  相似文献   

18.
Positive versus negative affective states are associated with the use of broad versus specific knowledge structures. We predicted that specific self-concepts and task difficulty would affect performance expectancies only for individuals in a negative mood; for individuals in a positive mood, only the general self-concept, but not task difficulty, would affect performance expectancies. In an experiment, we manipulated task difficulty and mood, and we assessed self-concepts, performance expectancies, and task performance. The expected interactions for the formation of performance expectancies (mood × general self-concept, mood × specific self-concept, mood × difficulty) were found. Concerning the consequences of performance expectancies, we predicted that expectancies would affect actual performance only if the task was difficult and if task difficulty was taken into account when the expectancy is generated. This hypothesis was supported: The relationship between performance expectancies and actual performance was significant only for difficult tasks and given negative mood.  相似文献   

19.
The current study examined whether and when young infants are sensitive to distressed others, using two experiments with a forced-choice paradigm. Experiment 1 showed that 5- to 9-month-old infants demonstrate a clear pro-victim preference: Infants preferred a distressed character that had been physically harmed over a matched neutral character. Experiment 2 showed that infants’ preference for a distressed other is not invariable, but rather depends on the context: Infants no longer preferred the distressed character when it expressed the exact same distress but for no apparent reason. These findings have implications for the early ontogeny of human compassion and morality, addressed in the discussion.  相似文献   

20.
Interactive effects of two environmental stressors when simultaneous ly present, i.e., noise and crowding, were analyzed. Four experimental conditions with two intensities of stress for each stressor (high versus low) were created. The stressors were concurrently introduced in laboratory conditions and their effects analyzed using several methodological approaches. More intense and negative effects were expected when the two highest intensities of noise and crowding concurred. 40 people (20 men and 20 women) participated in a study with a 2 x 2 factorial design. Analysis showed an increase in the measures of hemodynamic, endocrine, and neuroendocrine values of participants after being exposed simultaneously to noise and crowding. Similarly, their performance on complex tasks decreased, and they reported a subjective increase in stress. Capacity to cope was indicated by a statistically significant lower mean on the Dimension of Stress scale, tolerance of frustration during the multiple stress condition.  相似文献   

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