Survey of system of attacks by judoka in regional and interregional matches

In judo, making the opponent uncertain requires the mastery of several throws in 3 or 4 different directions and a firm grasp to secure the throw. The system of attacks for 28 judoka (18 men, 10 women) during their 185 respective matches over the competition season of 2001-2002 was analyzed. Practice was regional or interregional. The mean number of matches was 3.3+/-1.1. The mean number of successful directions of attack was 2.5+/-1.3. The mean number of grasps was 1.4 +/-0.5, and the mean time for matches was 08:04+/-03:12. Analysis showed mean number of directions of attack was about 3 and was lower for higher competition although the mean time of matches did not vary significantly. Numbers of directions of attacks were constant for the higher classified judoka. The number of grasps used remained constant. Progress at this level of skill occurs by methodical learning of throws in a coordinated system of attacks. Throws must be complementary to other throws and initiated with one or several grasps.     

Mixed-handedness advantages in episodic memory obtained under conditions of intentional learning extend to incidental learning

The existence of handedness differences in the retrieval of episodic memories is well-documented, but virtually all have been obtained under conditions of intentional learning. Two experiments are reported that extend the presence of such handedness differences to memory retrieval under conditions of incidental learning. Experiment 1 used Craik and Tulving’s (1975) classic levels-of-processing paradigm and obtained handedness differences under incidental and intentional conditions of deep processing, but not under conditions of shallow incidental processing. Experiment 2 looked at incidental memory for distracter items from a recognition memory task and again found a mixed-handed advantage. Results are discussed in terms of the relation between interhemispheric interaction, levels of processing, and episodic memory retrieval.     

Memory and metacognition for piano melodies: Illusory advantages of fixed- over random-order practice

Some learning schedules can foster an illusion of competence, whereby the learner feels that the skill will be retained better than it actually will be. Consider fixed-order practice, in which a person practices a task repeatedly before switching to the next task (e.g., task order A, A, B, B); in contrast, in random-order practice, a person randomly alternates among two or more tasks (e.g., task order C, D, D, C). In the present experiment, participants (n = 25) who had formal training in piano practiced melodies under fixed- or random-order conditions (within-subjects), and then returned for a retention test 2 days later. Initially, the participants performed faster on melodies practiced in a fixed-order. However, on a retention test 2 days later, participants were faster with melodies from the random-order condition. Despite the within-subjects design, which facilitated the comparison of practice conditions, participants’ metacognitive judgments indicated an illusion of competence, whereby they erroneously believed that fixed-order practice would result in faster retention performance. Our results suggest that even some trained musicians may use ease of acquisition as a heuristic for predicting future performance.     

Power difference between players and level of matrix as determinants of competition in a MDG

At first, it was demonstrated that social comparison theory (Festinger, 1954) predicting a need for moderate (instead of maximal) superiority, could reconcile a number of disparate results of earlier Maximizing Difference Game (MDG) experiments. Using the same theory, it was then further predicted that high power players in an asymmetrical MDG would compete less than their inferior opponents or than equal power players in a symmetrical MDG and that the inferior and equal power players would not differ in competition. The data of an experiment, involving an asymmetrical (8/6) MDG matrix and two symmetrical MDG matrices (8/8 and 6/6), generally confirmed these predictions, but it was observed serendipitously that the high 8/8 symmetrical matrix yielded more competition than the lower 6/6 symmetrical matrix. An extended replication of this variable with five linearly related MDG matrices (4/4, 5/5, 6/6, 8/8 and 12/12) showed a similar result, namely most competition in the highest matrices and least in the lowest ones. The finding was interpreted in terms of the competitive motivation of the players and the low cost of competition in the highest matrices.     

The effects of smart phone video analysis on focus of attention and performance in practice and competition

ObjectivesResearch has consistently found that focus of attention (FOA) affects motor learning and performance. However, much of the previous work has used artificially manipulated FOA of novice participants performing laboratory tasks. There is a paucity of work that has tested transfer to more complex competition environments. We aimed to investigate the effects of smart phone video analysis, which commonly occurs in natural practice settings in golf, on skilled player’s FOA and performance in both practice and competition.DesignThis study employed a mixed experimental design. The between participants factor was the use of video analysis (practice with video vs practice only) and the repeated measures factor was time point (pre-intervention vs post-intervention).MethodAltogether, 19 skilled golfers (handicap: M = 5.79, SD = 5.80) took part in a four-week practice intervention with (n = 10) or without (n = 9) the use of smart phone video analysis. Driving range performance and competition performance were measured pre- and post-intervention. Practice diaries provided measures of FOA during the intervention period.ResultsThe practice with video group displayed a significantly more internal FOA throughout the intervention period than the practice only group. This resulted in a significant time by group interaction for driving range performance that showed an increase in performance for the practice only group and a decrease for the practice with video group. However, the performance effects did not transfer to competition scores.ConclusionsFindings enhance our understanding of the effects of video analysis on FOA and question whether FOA effects transfer from on range practice to on course performance.     

The neural substrate of schadenfreude: The effects of competition level changes on the processing of pain in others

Schadenfreude is defined as the joy individuals feel as a result of the pain felt by opposing group members. In order to experience schadenfreude, it is not enough for the individual who is suffering to be a member of the opposing group, but also the perceived competitiveness level of the opposing group must be high. Although this basic assumption of Schadenfreude's competitiveness is confirmed by self-report-based techniques, there is no study in the literature addressing the subject's neural bases. The aim of this study is to test the competitiveness assumptions of schadenfreude using the electroencephalography-based ERP method. For this purpose, EEG recordings were taken of 40 individuals who expressed themselves as belonging to a political party while watching the outgroup and ingroup party members in pain. Perception of competition levels of outgroup and ingroup members were manipulated during the study. The results show that pain empathy for the suffering individuals changes in relation to the competition level. Particularly related changes have been observed in late ERP components known to be related to consciousness. In this context, our study contributes to the literature as the first confirmation of the assumptions of schadenfreude competitiveness level by neuroscientific methodology.     

The modulation of lexical competition by segment duration

In an eye-tracking study, we examined how fine-grained phonetic detail, such as segment duration, influences the lexical competition process during spoken word recognition. Dutch listeners’ eye movements to pictures of four objects were monitored as they heard sentences in which a stop-initial target word (e.g.,pijp “pipe”) was preceded by an [s]. The participants made more fixations to pictures of cluster-initial words (e.g.,spijker “nail”) when they heard a long [s] (mean duration, 103 msec) than when they heard a short [s] (mean duration, 73 msec). Conversely, the participants made more fixations to pictures of the stop-initial words when they heard a short [s] than when they heard a long [s]. Lexical competition between stop- and cluster-initial words, therefore, is modulated by segment duration differences of only 30 msec.     

Enhancement of perceptual representations by endogenous attention biases competition in response selection

Perception and response selection are core processes in the generation of overt behavior. Selective attention is known to facilitate behavioral performance by altering perceptual processes. It remains unclear, however, whether selective attention can aid the resolution of response conflict, and if so, at what stage of processing this takes place. In two experiments, an endogenous cuing task was combined with a flanker task to assess the interaction of selective attention with response selection. The results of Experiment 1 show that cuing reduces the flanker-congruency effect when the cue and flanker are presented in close temporal proximity to each other. The results of Experiment 2 demonstrate that pre- but not post-cuing the target reduced the congruency effect, showing that selective attention can affect performance, but is ineffective once stimulus processing has proceeded to response selection. Our results provide evidence that selective attention can aid the resolution of response conflict by altering early perceptual processing stages.     

Anger and perceived legitimacy of aggression in male Hong Kong Chinese athletes: Effects of type of sport and level of competition

ProblemThe vast majority of research examining the interplay between aggressive emotions, beliefs, behaviors, cognitions, and situational contingencies in competitive athletes has focused on Western populations and only select sports (e.g., ice hockey). Research involving Eastern, particularly Chinese, athletes is surprisingly sparse given the sheer size of these populations. Thus, this study examines the aggressive emotions, beliefs, behaviors, and cognitions, of competitive Chinese athletes.MethodSeveral measures related to aggression were distributed to a large sample (N = 471) of male athletes, representing four sports (basketball, rugby union, association football/soccer, and squash).ResultsHigher levels of anger and aggression tended to be associated with higher levels of play for rugby and low levels of play for contact (e.g., football, basketball) and individual sports (e.g., squash).ConclusionsThe results suggest that the experience of angry emotions and aggressive behaviors of Chinese athletes are similar to Western populations, but that sport psychology practitioners should be aware of some potentially important differences, such as the general tendency of Chinese athletes to disapprove of aggressive behavior.     

When competition breeds equality: Effects of appetitive versus aversive competition in negotiation

Competitive motivation is prevalent in negotiation but systematic insight into its effects is missing. We introduce the distinction between appetitive competition, in which negotiators seek relative gain, and aversive competition, in which negotiators seek to prevent relative loss. Two experiments tested the predictions that (i) appetitive competitors are less vigilant and more confident than aversive competitors, and are (ii) therefore more likely to reach an agreement. However, we further hypothesized that (iii) information about one's opponent undermines appetitive competitors' confidence, yet enables trust in aversive competitors. Results supported these predictions. Appetitive competitors more often reached an impasse than aversive competitors when information was provided about the opponent, whereas aversive competitors more often reached an impasse without this information.     

Sequence initiation performance by stutterers under conditions of response competition

Male stutterers and nonstutterers were compared on their performance of a task that required tapping keys as rapidly and accurately as possible to reproduce different sequences of finger movements as soon as they had been demonstrated on a visual display panel. Testing using the right hand alone confirmed previous findings that stutterers are significantly slower than nonstutterers in initiating new movement sequences and make significantly more errors on initial sequences. Subjects were also tested on this sequence reproduction task while they performed concurrently a manual task with the left hand that required turning a knob in response to signal tones. The hypothesis underlying the study was that associated with stuttering is a dysfunction in the mechanisms regulating interhemispheric communication, and it was predicted that the concurrent task would interfere more with the sequence reproduction task performance of stutterers than with that of nonstutterers. A joint analysis of the speed and accuracy aspects of performance of the two tasks confirmed the prediction. Additional research required to clarify whether the effects are in fact due to the hypothesized interhemispheric mechanisms or to a generally greater susceptibility of stutterers to interference from any concurrent motor or cognitive activity is discussed.     

Aided speech-identification performance in single-talker competition by older adults with impaired hearing

This study examined the effects of increased processing load on the closed-set speech-identification performance of young and older adults in a one-talker background. Since the older adults had impaired hearing, speech-identification performance was measured for spectrally shaped stimuli comparable to those experienced when wearing well-fit hearing aids. There were three groups of listeners: (1) 19 older adults with high-frequency sensorineural hearing loss; (2) 10 young adults with normal hearing who were assessed with the same spectrally shaped stimuli as the older adults; (3) 9 young adults with normal hearing who were assessed without spectral shaping and at a poorer target-to-competition ratio in an effort to equate overall performance to that of the older adults. In addition to this group factor, there were three within-participant repeated-measures independent variables designed to increase the demands on processing for the target and competing speech stimuli. These were: (1) competition meaningfulness (played in forward or reverse direction); (2) gender match between target and competing talkers (same or different gender); and (3) talker uncertainty (either the same target/competition talker pair or one of many such pairs on each trial). These three repeated-measures independent variables were examined in a 2 × 2 × 2 factorial design. They showed roughly independent and additive effects on speech-identification such that combinations of these variables decreased performance cumulatively. Older adults performed worse than young adults across the board, but also showed diminished relative improvement as the processing load was decreased. Individual differences in performance among the older adults were also examined.     

A rational origin obtained by the method of contingent paired comparisons

A new paired comparison method, based upon choices between lotteries, is developed for the measurement of utilities of objects with respect to the utility of receiving nothing, i.e., the status quo. The method is used to estimate the utilities of four birthday gifts. These objects had also been studied in an earlier experiment which used choices between single objects and pairs of objects to determine a rational origin. A comparison of the results of the two experiments indicates that both methods scale objects with respect to the same rational origin and unit of measurement.This research was supported under contract AF 49(638)-724 with the Air Force Office of Scientific Research and contract DA 19-129-QM-1045 with the Quartermaster Research and Engineering Command.     

Stability of individual loudness functions obtained by magnitude estimation and production

A correlational analysis of individual magnitude estimation and production exponents at the same frequency was perfor.med, as well as an analysis of individual exponents produced in different sessions by the same procedure across frequency(250, 1, 000, and 3, 000 Hz). Taken together, results show, first, that individual exponent differences do not decrease by counterbalancing magnitude estimation with magnitude production, and, second, that individual exponent differences remain stable over time despite changes in stimulus frequency. Further results disclose that although individual magnitude estimation and production exponents do not necessarily obey the .6 power law, it is possible to predict the slope (exponent) of an equal-sensation function averaged for a group of listeners from individual magnitude estimation and production data. Assuming that individual listeners with sensorineural hearing loss also produce stable and reliable magnitude functions, it is also shown that the slope of the loudness-recruitment function measured by magnitude estimation and production can be predicted for individuals with bilateral losses of long duration. Thus, results obtained in normal and in pathological ears suggest that individual listeners can produce loudness judgments that reveal, albeit indirectly, the input-output characteristic of the auditory system.