Who am I? Differential effects of three contemplative mental trainings on emotional word use in self-descriptions

In a large-scale longitudinal mental training study, we examined whether learning different contemplative practices can change the emotional content of people’s self-concept as assessed through emotional word use in the Twenty Statement Test. During three 3-month training modules, participants learned distinct practices targeting attentional, socio-affective, or socio-cognitive capacities, or were re-tested. Emotional word use specifically increased after socio-cognitive training including perspective-taking on self and others, compared to attentional and socio-affective compassion-based trainings, and retest-controls. Overall, our findings demonstrate training-induced behavioral plasticity of the emotional self-concept content in healthy adults and could indicate greater emotional granularity. These findings can inform future interventions in mental health, given that alterations in self-referential processing are a common contributing factor in psychopathology.     

How did I do it then? How will I do it later? A theoretical review of the impact of mental time travel on decision-making processes

Mentally traveling to one's personal past and future connects the current self with self at different points in time. When making decisions in the present, individuals benefit from their past and potential future decisions with the help of mental time travel. This review documents the theoretical and empirical studies concerning mental time travel to past and future decisions and their influence on current decision-making processes. Particularly, certain characteristics of past and future decisions directly or indirectly influence present life decisions. Synthesizing the existing literature, we developed a theoretical model suggests that temporally close decisions tend to include different type of details and diverge from distant decisions in terms of personal meaningfulness. Further, past and future decisions that are elaborated and meaningful, have a great impact on present decisions. Future empirical work testing this model has the potential to generate findings that will inform intervention strategies towards improved decision-making.     

How does the manipulation of time pressure during soccer tasks influence physical load and mental fatigue?

This study aimed to analyze whether having more or less time to solve soccer tasks influences physical load and mental fatigue. 48 semi-professional soccer players, from teams in national leagues participated (M_age = 22.4, SD_age = 2.25). They carried out 2 sessions with 4 tasks in each session. In one session, there was more time available; in the other, there was less time available. GPS technology was used to measure physical load, and an adaptation of NASA and Visual Analog Scale to measure mental load and mental fatigue. A related-samples T-test and magnitude based on inference were used to determine the possible effect. Soccer players reported that tasks with less available time were more mentally demanding. Moreover, less available time to solve the tasks significantly increased players’ RPE and decreased their Heart Rate and external physical load. Therefore, the available time significantly affects mental and physical load and mental fatigue.     

Who am I?: The influence of affect on the working self-concept

Two experiments investigated the impact of affect on the working self-concept. Following an affect induction, participants completed the Twenty Statements Test (TST) to assess their working self-concepts. Participants in predominantly happy and angry states used more abstract statements to describe themselves than did participants in predominantly sad and fearful states. Evaluations of the statements that participants generated (Experiment 2) demonstrate that these effects are not the result of (1) participants describing positively and negatively valenced information at different levels of abstraction, or (2) valence-based affective priming. Further, half of the participants in Experiment 2 were led to attribute their affect to the manipulation prior to completing the TST. This manipulation eliminated the influence of affect on the working self-concept. Taken together, these results are consistent with theory and research on the informative functions of affect.     

How do we judge our confidence? Differential effects of meta-memory feedback on eyewitness accuracy and confidence

According to the cue–belief model, we assess confidence in our memories using self-credibility cues that reflect beliefs about our memory faculties. We tested the influence of meta-memory feedback on self-credibility cues in the context of eyewitness testimony, when feedback was provided prior to “testifying” via a memory questionnaire (Experiment 1) and after an initial memory questionnaire but before participants had to retake it (Experiment 2). Participants received feedback (good score, bad score, or none) on a fictitious scale purported to predict eyewitness memory ability. Those given good score feedback before testifying were more confident (but no more accurate) than those given bad score feedback. Feedback also affected confidence (good increased and bad decreased) and accuracy (good increased) after testifying but only on leading questions. These differential effects of meta-memory feedback on confidence for normal and leading questions are not explained by the cue–belief model. Implications for our confidence judgments are discussed.     

The effects of a mental skills package on ‘repeatable good performance’ in cricketers

Objectives: To examine the efficacy of a mental skills package to both improve consistency and level of performance in cricketers, and to investigate the influence of different performance measures on cricketing performance.Method: Semi-professional cricketers (n=16) were matched into experimental and control groups. Cricketing performance was monitored subjectively and objectively across two seasons. Prior to the second season, the experimental group were provided with an intervention package consisting of goal-setting, activation regulation, self-talk, mental imagery and concentration.Results: Data from two, two-way multivariate analyses of variance (MANOVAs) indicated that cricketers in the experimental group experienced improved performance consistency and improved performance when using subjective scoring procedures, but only a performance improvement was recorded using objective measures. Subsequent single-case analysis applied to the data of four of the experimental participants also revealed support for the efficacy of the intervention.Conclusions: A mental skill package was seen to be beneficial to enhance performance consistency and actual levels of performance. In view of these findings, practitioners and coaches may wish to consider both objective and subjective scoring measures to improve the sensitivity of performance indicators.     

How does motor imagery speed affect motor performance times? Evaluating the effects of task specificity

The present experiment investigated whether motor imagery (MI) performed at a faster speed might influence the actual motor performance duration by comparing real‐time vs. fast MI of different finger movement sequences. Forty‐eight participants were either asked to do real‐time or fast MI practice of simple 8‐digit (unimanual), complex 8‐digit (bimanual), and long (16‐digit) finger movement sequences. The main findings revealed that both fast and real‐time MI resulted in actual speed gains in all experimental conditions, hence suggesting that performing fast MI did not systematically provide additional benefits as compared to real‐time MI. Interestingly, the results suggested that the speed at which movements were performed following an increase in MI speed was selectively influenced by the complexity of the task. MI training at higher speed seemed to be more effective in changing complex motor sequences compared with real‐time MI. Practical implications in motor learning and rehabilitation are also discussed. Copyright © 2010 John Wiley & Sons, Ltd.     

Emotional and motivational mechanisms mediating the influence of goal setting on endurance athletes’ performance

ObjectivesTo examine several psychological mechanisms mediating the efficacy of goal setting in endurance sports.DesignThe athletes were randomly assigned to four experimental conditions in a 2×2×3 mixed design.MethodsParticipants were 35 male endurance athletes ranging in age from 15 to 34 years who competed at different athletic clubs of the Catalonian Track and Field Federation. They were assigned to a goal (attainable or unattainable) and pattern of social comparison (win or lose) conditions, which were the between subject variables, and phase of assessment (three repetitions) served as the repeated-measure variable.ResultsTo analyze the role of mediator mechanisms, a structural equation modeling analysis was conducted. The results indicated that both motivational and emotional mechanisms were important mediators in improving the efficacy of goal setting in endurance sports. In particular the addition of the concept of suffering (including perceptions of threat and feelings of helplessness) was shown to be related to performance outcomes.ConclusionsWhen setting goals, the possibility of not reaching those goals can be threatening to individuals and lead to feelings of helplessness, especially if goals are perceived as too difficult. Having strong self-efficacy to meet the goals set is important to maintain motivation.     

How might the discrepancy in the effects of perceptual variables on numerosity judgment be reconciled?

It has been claimed that a genuinely abstract numerical representation would be capable of representing the numerosity of any set of discrete elements independently of the attributes of the individual elements. In practice, however, perceptual variables, such as element size, density, and others, affect numerosity judgment. In this study, we examined how perceptual variables affect the performance of numerosity judgments under the control of factors such as amount of practice and set size. In Experiment 1, we introduced the numerosity comparison task to less experienced observers in order to examine the effect of element size and array area. In Experiment 2, we examined whether and how practice would influence precision and accuracy in numerosity comparison and demonstrated that the effects of perceptual variables mostly disappeared. In Experiment 3, we examined whether the effect of practice could transfer to the performance in different stimulus conditions. Taking the results together, we demonstrate that differences in practice might be the source of inconsistent results for perceptual variables.     

How general are the effects of trait anxiety and depressive symptoms on cognitive functioning?

A total of 3,781 healthy adults between 18 and 97 years of age completed trait anxiety and depressive symptoms inventories and also performed a battery of cognitive tests. Consistent with recent research on cognitive abilities, the cognitive variables could be organized into a hierarchical structure, with 5 first-order abilities and a single g-factor representing the variance common to the first-order abilities at the top of the hierarchy. Analyses were conducted to determine where in this hierarchy effects associated with trait anxiety and depressive symptoms were operating. The results indicated that trait anxiety and depressive symptoms had significant relations at the highest level in the hierarchy of cognitive abilities, but few relations of either characteristic were evident on the cognitive abilities, or on measures of working memory, after controlling influences at the g-factor level. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

How do I love thee? Let me count the words: the social effects of expressive writing

Writing about emotional experiences is associated with a host of positive outcomes. This study extended the expressive-writing paradigm to the realm of romantic relationships to examine the social effects of writing. For 3 consecutive days, one person from each of 86 dating couples either wrote about his or her deepest thoughts and feelings about the relationship or wrote about his or her daily activities. In the days before and after writing, instant messages were collected from the couples. Participants who wrote about their relationship were significantly more likely to still be dating their romantic partners 3 months later. Linguistic analyses of the instant messages revealed that participants and their partners used significantly more positive and negative emotion words in the days following the expressive-writing manipulation if the participants had written about their relationship than if they had written about their daily activities. Increases in positive emotion words partially mediated the relation between expressive writing and relationship stability.     

How many fingers am I holding up? The answer depends on children's language background

Monolingual English‐speaking preschool children tend to process number gestures as unanalyzed wholes rather than use the one‐to‐one (finger‐to‐quantity) correspondence. By school age, however, children can use the one‐to‐one correspondence. The purpose of the present studies was to test whether children learn one‐to‐one correspondence through exposure to a variety of finger configurations to convey a single quantity. In Study 1, we compared children with exposure to multiple one‐to‐one configurations, that is, French‐English and German‐English bilingual children, to English monolingual children who see consistent representations. As predicted, the bilingual children performed better in interpreting unconventional number gestures. In Study 2, we compared Chinese‐English bilingual children who knew arbitrary one‐handed Chinese numbers gestures for quantities 6–10 to Chinese‐English bilingual children who did not know these gestures, as well as to monolingual English speakers. Chinese‐English bilinguals who knew the arbitrary gestures were more likely to interpret unconventional gestures arbitrarily (i.e., influenced by the written and/or Chinese gesture forms). These children did not differ from English monolinguals in the interpretation of unconventional gestures. These results are consistent with the argument that children can become sensitive to the one‐to‐one correspondence in number gestures with exposure to multiple configurations for the same quantity.     

Larger,smaller, odd or even? Task-specific effects of optokinetic stimulation on the mental number space

Previous studies have shown that number processing can induce spatial biases in perception and action and can trigger the orienting of visuospatial attention. Few studies, however, have investigated how spatial processing and visuospatial attention influences number processing. In the present study, we used the optokinetic stimulation (OKS) technique to trigger eye movements and thus overt orienting of visuospatial attention. Participants were asked to stare at OKS, while performing parity judgements (Experiment 1) or number comparison (Experiment 2), two numerical tasks that differ in terms of demands on magnitude processing. Numerical stimuli were acoustically presented, and participants responded orally. We examined the effects of OKS direction (leftward or rightward) on number processing. The results showed that rightward OKS abolished the classic number size effect (i.e., faster reaction times for small than large numbers) in the comparison task, whereas the parity task was unaffected by OKS direction. The effect of OKS highlights a link between visuospatial orienting and processing of number magnitude that is complementary to the more established link between numerical and visuospatial processing. We suggest that the bidirectional link between numbers and space is embodied in the mechanisms subserving sensorimotor transformations for the control of eye movements and spatial attention.     

Who cares about organizational justice? How personality moderates the effects of perceived fairness on organizational attachment

The present article tests whether two theoretically relevant individual differences moderate the impact of perceived fairness on organizational attachment among young professionals in a large Dutch multinational firm. Drawing on the relational and control perspectives on organizational justice, we predict that any relationship between perceived fairness and organizational attachment will differ between individuals with varying beliefs in personal control and will be stronger for individuals with high interdependent self-construal (ISC). The findings revealed that almost all positive main effects of perceived fairness on organizational attachment were indeed moderated by either type of personality. As a result, we found support for both the relational as well as the control perspective, depending on the type of attachment considered. “Hard” reciprocation through extrarole behaviour seems to be inspired by the empowering impact of control through fairness. “Soft” reciprocation by affection and staying intentions (cognitions) on the other hand, results from the relational bond that is strengthened by fair treatment.     

A meta-analytic study of the effects of goal setting on task performance: 1966–1984

A meta-analytic study was conducted involving primarily published research from 1966 to 1984 and focusing on the relationship between goal-setting variables and task performance. Two major sets of studies were analyzed, those contrasting hard goals (goal difficulty) versus easy goals, and those comparing specific hard goals (goal specificity/difficulty) versus general goals, “do best” instructions, or no goal. As expected, strong support was obtained for the goal difficulty and goal specificity/difficulty components of E. A. Locke's (1968a, Organizational Behavior and Human Performance, 3, 157–189) theory. A two-stage approach was employed to identify potential moderators of the goal difficulty and goal specificity/difficulty—performance relationships. Setting (laboratory versus field) was identified as a moderator of the relationship between goal specificity/difficulty and task performance. Two supplemental meta-analyses yielded support for the efficacy of combining specific hard goals with feedback versus specific hard goals without feedback and for participatively set goals versus assigned goal setting (when goal level is held constant), although this latter finding was interpreted as inconclusive based on the limited studies available. Implications for future research are addressed.     

How guilt leads to reparation? Exploring the processes underlying the effects of guilt

It is widely assumed that guilt leads people to engage into reparatory behaviors. However, the processes underlying this effect are in need for further specification. Four studies tested potential underlying cognitive mechanisms. Results suggest that guilt increases attention toward positive and reparation-oriented cues (Study 1) and makes attitudes toward reparation-oriented primes more positive (Study 3). No effect was found for accessibility of reparation words (Studies 2a, b). Taken together, these results suggest that guilt leads people to pay more attention to reparation means and to develop a more positive attitude toward reparation means, but does not render reparatory means more accessible. Implications for a better knowledge of guilt’s behavioral consequences are discussed.     

Efficacy of stimulants for fatigue management: the effects of Provigil® and Dexedrine® on sleep-deprived aviators

The present report details the results of a quasi-experimental comparison between the alerting effects of modafinil (Provigil^®) and those of dextroamphetamine (Dexedrine^®) in sleep-deprived pilots. Data from two separate placebo-controlled studies (one on Dexedrine^® and one on Provigil^®) were merged and analyzed to determine whether one compound produced greater effects than the other relative to placebo. The results indicated there were differences between the two stimulants on only two of the 14 dependent measures. In one case (a flight performance measure), modafinil was more effective than dextroamphetamine, and in the other case (subjective fatigue ratings), dextroamphetamine was better than modafinil. The remaining measures indicated no statistically-significant differences between the two stimulants. However, in the majority of cases, it was clear that performance, subjective mood ratings, and physiological indices of alertness were substantially better under both drugs than under placebo. Thus, with the exception that modafinil produced more spontaneous reports of side effects than dextroamphetamine, the overall results indicated equivalent efficacy with the two compounds. Limitations of this study were that the two compounds were tested on different samples at different points in time, and there was no systematic measurement of side effects (instead, spontaneous reports were recorded). Future work should validate the present results in a controlled side-by-side comparison of dextroamphetamine and modafinil under conditions similar to the ones reported here.     

How does the severity of a learning disability affect working memory performance?

Working memory performance was examined in children aged 11-12 years who had borderline, mild, and moderate learning disabilities. Comparisons with children of average abilities were used to determine whether those with more severe learning disabilities had greater impairments in working memory. Seven measures of working memory span were used to assess temporary phonological short-term storage (digit span, word span), temporary visuo-spatial short-term storage (pattern span, spatial span), and temporary short-term storage with additional processing, or central executive, demands (listening span, odd one out span, reverse digit span). Children with mild and moderate learning disabilities were impaired on all measures of working memory compared to children of average abilities. Children with borderline learning disabilities were just as good as children with average abilities on visuo-spatial and complex span tasks, but showed an impairment on phonological span tasks. Children with moderate learning disabilities were indistinguishable from children with mild learning disabilities on simple span tasks, but were significantly poorer than the mild group on the more demanding complex span tasks. For the group as a whole, working memory was strongly related to mental age.     

Are the effects of attention on speed judgments genuinely perceptual?

A number of studies in recent years have suggested that exogenous and endogenous attention might enhance the perceived magnitude of various perceptual attributes, such as contrast and motion speed. Those studies have generally used comparative judgments as a measure to assess the point of subjective equality; however, similarity judgments have been proposed as possibly less prone to decision biases (Schneider & Komlos, 2008). In three experiments, using a similarity judgment task, we did not find any evidence of motion speed enhancement by exogenous attention. We suggest that the effect revealed by comparative judgments arises at the decisional, rather than the perceptual, stage.