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In this paper, we present a new approach to studying the perception- action linkage in sport. The approach and the sport-specific paradigms associated with it are aimed at exploring the 'covert' processes underlying decision-making and decision alterations before and during the course of action execution. The approach introduced here is based on Coles' (1989) work applying the chronometric approach in various paradigms using warning and imperative stimuli (i.e. valid and invalid cueing). Coles also demonstrated the efficacy of the 'lateralized readiness potential' as a measure which reflects the correct and incorrect activation of motor responses (i.e. the covert processes underlying error elicitation). The chronometric approach, which takes into account the warning and imperative stimuli as well as action initiation, execution and alteration, is recommended for the study of expertise behaviour in sport. It is predicted that lateralized readiness potential patterns will differ between experts and novice performers. Several hypotheses are derived, and paradigms suggested, to explore the 'covert processes' underlying expertise in the motor domain. 相似文献
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This study explored how the proximity of threatening health news affects cognition and emotion through a 2 (Proximity: High/Low) × 4 (Topic) fractional experiment. Fifty-one participants read four news stories about either local or distant health threats, with their heart rate, skin conductance, and corrugator electromyography recorded. Results showed that high-proximity health threats elicited greater heart rate deceleration than did low-proximity health threats, indicating greater allocation of automatic resources to encoding high-proximity threats. Recognition data demonstrated that details from high-proximity health threats were recognized more accurately than details from low-proximity health threats. There were no significant effects of proximity on either skin conductance levels or corrugator activation. These results are discussed in terms of Shoemaker's (1996) hardwired for news hypothesis and A. Lang's (2000, 2006) limited capacity model. 相似文献
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《Communication monographs》2012,79(3):359-378
Research has used the cardiac orienting response (OR) to show that structural changes in the auditory environment cause people to briefly but automatically pay attention to messages such as radio broadcasts, podcasts, and web streaming. The voice change—an example of an auditory structural feature—elicits orienting across multiple repetitions. This article reports two experiments designed to investigate whether automatic attention allocation to repeated instances of other auditory structural features—namely production effects, jingles, and silence—is a robust phenomenon or if repetition leads to habituation. In Study 1 we show that listeners of a simulated radio broadcast exhibit ORs following the onset of auditory structural features that differ in semantic content. The prediction that listeners would not habituate to feature repetition was not supported. Instead, both jingles and synthesized production effects result in more iconic ORs to the second repetition compared with the first. However, orienting significantly diminished following the third repetition of both. Study 2 replicates this result using multiple repetitions of structural features containing identical semantic content. 相似文献
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Justin Robert Keene Russell B. Clayton Collin K. Berke Travis Loof Paul D. Bolls 《Communication Research Reports》2017,34(3):265-274
The measurement of an individual’s heart rate has many relevant theoretical implications for communication research. However, there are reasons to believe that the most common way of reporting cardiac response—beats per minute (BPM)—might not be appropriate for all methodological situations. This article presents an overview of the historical use of cardiac activity within communication research, and provides a summary of the current conceptualizations of attention and resource allocation. To fully understand the difference between BPM and interbeat interval (IBI)—an alternate method for reporting cardiac response—a comparative analysis was performed on a data set from a previously published study. This article concludes with a set of suggestions that researchers may want to consider when utilizing BPM or IBI within communication research. 相似文献
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《European Journal of Sport Science》2013,13(6):419-429
Abstract During prolonged exercise, ratings of perceived exertion (RPE) and affect (pleasure; activation) play an important role in performance, especially in hot conditions. Although various mechanisms have been tried to manage the effects of heat (e.g. cooling jackets), the purpose of the current research was to assess the effect of a cooling collar on RPE, affect, thermal sensation, and running performance in the heat. Participants (n =8) wore a cold collar, uncooled collar or no collar as they completed three 90-min preloaded treadmill time-trials in the heat (30.5±0.1°C), which included 75 min at ～60% [Vdot]O2max followed by a 15-min time-trial. Affect, RPE, and thermal sensation were measured throughout. Performance during the time-trial was significantly improved in the cold collar compared with the uncooled collar and no-collar trials; however, pleasure and activation ratings were highest for the no-collar trial. Findings suggest that a cooling collar may improve performance, but not necessarily “feel good”. Practically, it seems necessary to ensure sufficient education about the benefits, on balance, of the cold collar, while the performance improvements outweighed the reported discomfort of athletes in this study. In addition, the cold collar may prove quite beneficial for individuals who work in hot climates and or conditions, as it may be effective in minimizing discomfort associated with heat for other groups as well. 相似文献
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