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211.
Transcranial Direct Current Stimulation (tDCS) is a neuromodulatory technique that has been used as an ergogenic aid in exercise/sports performance. However, little is known about its effects on highly-trained subjects, as athletes. The present study aimed to verify the effects of bi-hemispheric anodal tDCS (a-tDCS) on the performance of taekwondo athletes. Additionally, we investigated the persistence of the effects of the a-tDCS one hour after it. Nineteen Taekwondo athletes received active or sham bi-hemispheric a-tDCS over the primary motor cortex (M1). a-tDCS was delivered at 1.5 mA for 15 min. Athletes performed Countermovement Jumps (CMJ) and the Frequency Speed of Kick Test (FSKT) immediately (Mo1) and one hour after stimulation (Mo2). The athletes also reported their session-rating of perceived exertion (session-RPE). The total number of kicks (TK) was higher in sham than in the active a-tDCS condition (p < 0.01). In addition, TK was higher at Mo2 than at Mo1 (p < 0.05). Similarly, the session-RPE was higher in the a-tDCS condition (p < 0.05) and was greater one-hour post-stimulation (p < 0.01). No differences were found for CMJ performance (p > 0.05). Thus, bi-hemispheric a-tDCS worsens performance of taekwondo athletes, and the effect remains present even 1 h after the stimulation. 相似文献
212.
Feelings and cognitions influence judgment through attribution. For instance, the attribution of positive feelings and cognitions to a stimulus leads to a positive judgment of that stimulus. We examined whether misattribution is moderated by the applicability of a distractor to the judgment question. For instance, when are people more likely to attribute to a target person the affective and cognitive experiences triggered by a kitten – when trying to judge the person’s cuteness or trustworthiness? The kitten triggers experiences specifically relevant to cuteness, but people might more easily suspect the kitten’s potential influence when judging cuteness rather than trustworthiness. Using the Affect Misattribution Procedure, we found that applicability increases the effect of misattribution on valenced judgments. The results emphasise the importance of specific information (rather than only general valence) in attribution and suggest that high applicability of distractors to the judgment question does not elicit effective correction. 相似文献
213.
This study aimed to assess the stability of the performance, pace and turn parameters of elite long-distance male swimmers during an 800 m freestyle race. The sample was composed by 38 male swimmers, participating in the 800 m event at the 2016 LEN European Aquatic Championships (long course meter). The performance, and a set of pace and turn parameters were analyzed. A customized software was used to perform each race analysis. Swimmers spent 64.05 ± 0.50% and 35.95 ± 0.49% of the final race time in the clean swim and turns, respectively. In the pace parameters, the clean swim was the only one that did not differ between the first and second half of the race (1.63 ± 0.05 vs 1.62 ± 0.05 m·s−1), and in the turn parameters, the water break distance was also similar (5.13 ± 1.17 vs 5.06 ± 0.98 m). A significant and moderate-strong variation was verified for the performance (total race lap effect: p < 0.001, η2 = 0.62), and a significant and moderate variation for the pace parameters (total race: p < 0.001, 0.15 ≤ η2 ≤ 0.33), and for the turn parameters (total race: p < 0.01, 0.15 ≤ η2 ≤ 0.33). Present data (pace and turn variation) shows that elite long-distance male swimmers do not maintain a similar pattern during an 800 m freestyle race. Future research is need to understand if this lack of pace and turn stability is the best way to enhance the performance, or if swimmers should be advised to control their pace and turn. Nevertheless, coaches are advised to help swimmers with feedback about their pace (i.e., controlling the intermediate 30 m) and turn performances (i.e., controlling the 5 m in and 15 m out), leading to a positive effect in their final race time. 相似文献
214.
MOVE problems, like the Tower of London (TOL) or the Water Jug (WJ) task, are planning tasks that appear structurally similar and are assumed to involve similar cognitive processes. Carder et al. [Carder, H.P., Handley, S.J., & Perfect, T.J. ( 2004). Deconstructing the Tower of London: Alternative moves and conflict resolution as predictors of task performance. The Quarterly Journal of Experimental Psychology 57a, 8, 1459-1483] showed that one predictor of TOL performance was the number of alternative move choices there were at a given point in the solution. In two experiments an individual move experienced on the WJ task was manipulated (perceptually consistent/counterintuitive) along with the number of alternative moves there were to choose between. A verification paradigm was employed in which participants made speeded judgements about the correctness of a move. Results showed performance was consistent with the application of a perceptual strategy accompanied by a process involving the evaluation of non-redundant alternative moves. These are discussed in the context of recent research that has examined the impact of executive dysfunction on Water Jug performance [Colvin, M.K., Dunbar, K., & Grafman, J. (2001). The effects of frontal lobe lesions on goal achievement in the Water Jug task. Journal of Cognitive Neuroscience, 13, 1129-1147]. 相似文献
215.
216.
The present study examined how exposure to the performance of in-group and out-group members can both exacerbate and minimize
the negative effects of stereotype threat. Female participants learned that they would be taking a math test that was either
diagnostic or nondiagnostic of their math ability. Prior to taking the test, participants interacted with either an in-group
peer (a female college student) or an out-group peer (a male college student) who had just taken the test, and learned that
the student had either performed well or poorly on the test. Exposure to either an in-group or an out-group peer whose performance
was consistent with the negative stereotype (a poor-performing female or a strong-performing male) exacerbated stereotype
threat effects. In contrast, exposure to an in-group or an out-group peer whose performance challenged the negative stereotype
(a strong-performing female or a poor-performing male) eliminated stereotype threat effects. These findings demonstrate that
people can look to both in-group and out-group peers as sources of inspiration in the context of a negative stereotype.
相似文献
Keith D. MarkmanEmail: |
217.
Beate Seibt Roland Neumann Fritz Strack 《Journal of experimental social psychology》2008,44(3):713-720
Based on the conceptualization of approach as a decrease in distance and avoidance as an increase in distance, we predicted that stimuli with positive valence facilitate behavior for either approaching the stimulus (object as reference point) or for bringing the stimulus closer (self as reference point) and that stimuli with negative valence facilitate behavior for withdrawing from the stimulus or for pushing the stimulus away. In Study 1, we found that motions to and from a computer screen where positive and negative words were presented lead to compatibility effects indicative of an object-related frame of reference. In Study 2, we replicated this finding using social stimuli with different evaluative associations (young vs. old persons). Finally, we present evidence that self vs. object reference points can be induced through instruction and thus lead to opposite compatibility effects even when participants make the same objective motion (Study 3). 相似文献
218.
Sarah Teige-Mocigemba Karl Christoph Klauer 《Journal of experimental social psychology》2008,44(5):1414-1417
Two studies examined strategic effects on affective priming. Extending prior research by Klauer and Teige-Mocigemba [Klauer, K. C., & Teige-Mocigemba, S. (2007). Controllability and resource dependence in automatic evaluations. Journal of Experimental Social Psychology, 43, 648-655], the influence of different control strategies on a priming measure of prejudice was assessed. In both studies, a short stimulus onset asynchrony between prime and target (275 ms) was implemented along with considerable time pressure. In Study 1, participants could strategically eliminate priming effects with attitudinal prime categories (Arabs and liked celebrities) represented by several exemplars per category while priming effects for control categories remained intact. In Study 2, two strategies (payoff and faking) were induced to motivate participants to respond particularly fast and accurately to incongruent targets. Both strategies were successful in counteracting the usual priming effects, while leaving priming effects for non-targeted primes intact. We consider the role of so-called implementation intentions in accounting for the present findings. 相似文献
219.
This study examined the relationships among employees’ emotional intelligence, their manager’s emotional intelligence, employees’ job satisfaction, and performance for 187 food service employees from nine different locations of the same restaurant franchise. We predicted and found that employees’ emotional intelligence was positively associated with job satisfaction and performance. In addition, manager’s emotional intelligence had a more positive correlation with job satisfaction for employees with low emotional intelligence than for those with high emotional intelligence. These findings remain significant after controlling for personality factors. A similar pattern was found for job performance; however, the effect did not meet traditional standards of significance. Applied implications of the results are discussed. 相似文献
220.