Processing speed and executive functions in cognitive aging: How to disentangle their mutual relationship?

The processing-speedtheory and the prefrontal-executivetheory are competing theories of cognitive aging. Here we used a theoretically and methodologically-driven framework to investigate the relationships among measures classically used to assess these two theoretical constructs. Twenty-eight young adults (18-32 years) and 39 healthy older adults (65-80 years) performed a battery of nine neuropsychological and experimental tasks assessing three executive function (EF) components: Inhibition, Updating, and Shifting. Rate of information processing was evaluated via three different experimental and psychometric tests. Partial correlations analyses suggested that 2-Choice Reaction Time (CRT) performance is a more pure measure of processing speed than Digit Symbol Substitution Test (DSST) performance in the elderly. Hierarchical regression analyses showed that, although measures of processing speed and EF components share mutual variance, each measure was independently affected by chronological age. The unique adverse effect of age was more important for processing speed than for EF. The processing-speed theory and the prefrontal-executive theory of cognitive aging were shown not to be mutually exclusive but share mutual variance. This implies the need to control for their mutual relationship before examining their unique potential role in the explanation of age-related cognitive declines. Caution has still to be taken concerning the tasks used to evaluate these theoretical constructs.     

Visual tracking in young infants: Evidence for object identity or object permanence?

Previous research has shown that 5-month-old infants visually anticipate a moving object's appearance after it disappears behind a screen. This experiment assesses the underlying basis for such anticipatory tracking. Three tracking tasks were presented to 5- and 9-month-old infants. In the Permanence task, the object's continuous existence was apparently violated while it was behind a screen. In the Feature and Trajectory tasks, the object's features or trajectory changed while behind the screen. Disruptions in the infant's smooth visual pursuit of the object were recorded. Five-mont-olds showed disruptions of visual tracking in the Feature and Trajectory tasks, but not in the Permanence task. The tracking of the 9-month-olds was disrupted in all three tasks. We conclude that both 5- and 9-month-olds possess rules specifying the identity of a moving object which is occluded. For 5-month-olds these rules are based upon the object's features and trajectory, but not upon a concept of object permanence. For 9-month-olds all three rules—feature, trajectory, and permanence—are utilized in visual tracking.     

Executive functions in elite athletes – Comparing open-skill and closed-skill sports and considering the role of athletes' past involvement in both sport categories

Previous research documented differences in executive functions between elite athletes in different sports. It was argued that athletes in sport disciplines with higher cognitive demands (i.e., open-skill) show better executive functions than athletes in less cognitively challenging sport disciplines (i.e., closed-skill). In the current study, we aimed at detecting differences in executive functions between elite athletes in open-skill versus closed-skill sports and questioned the role of their total involvement in these sports until the age of 18 on executive functions.Seventy-five elite athletes (45 males and 30 females; M_age = 23.03 ± 4.41 years) from various sports were classified as open- or closed-skill athletes based on the sport they currently competed in. The athletes conducted a series of neuro-psychological tests measuring working memory, inhibition, and cognitive flexibility (Design Fluency test, Trail Making test, Flanker task, and a 2-back task). Retrospective interviews assessed athletes' sport involvement in open-skill and closed-skill sports until the age of 18.MANCOVAs revealed that athletes in open-skill sports performed better on measures of working memory and cognitive flexibility. Generalized Linear Models displayed that elite athletes in closed-skill sports, with greater involvement in open-skill sports until the age of 18, performed better during working memory and cognitive flexibility tasks.The results indicate that extensive time spent in open- and closed-skill sports can affect executive functions in elite athletes. A high involvement in open-skill sports proved to be beneficial for executive functions, in particular for elite athletes in closed-skill sports. These findings suggest that experiences in cognitively demanding sports may cause benefits for the development of executive functions.     

The role of team and sport social contexts: Are three-level models needed in studies of sport conduct?

In this work, I examined how variation in sport conduct is allocated across the three different levels (i.e., athlete, team, and sport) in order to consider how the team and sport environment might contribute to athletes' sport conduct. Specifically, three-level models were utilized for sportspersonship, technical and mental gamesmanship, and instrumental aggression to examine whether there is unique variance due to sport and team clustering with athletes (N = 1412) nested within teams (J = 92) that are in turn nested within sports (K = 17). Results showed that clustering due to sport accounted for unique variance above and beyond team clustering. However, sex and invasion team sport explained most of the sport-level variance. The implication is that it is important to account for the sport clustering. However, when accounting for the sport-level clustering is not feasible, controlling for sex is necessary at the very least.     

The impact of identity leadership on team functioning and well-being in team sport: Is psychological safety the missing link?

The purpose of this study was to investigate the role of psychological safety in explaining the impact of identity leadership on team performance and athlete well-being. Adopting a cross-sectional survey design, 289 handball players rated the identity leadership skills of their coach, their captain, and the informal leaders in the team, as well as various performance- and well-being-related measures. Structural equation modelling (controlling for the nested structure of our data) revealed that by demonstrating identity leadership, coaches, captains, and in particular informal athlete leaders, all had a unique contribution in strengthening their team members’ identification with their team. By this shared sense of ‘us’, athletes felt psychologically safe in their team to speak up, provide input, and take risks. In line with our hypotheses, this sense of psychological safety acted as a mediator between identity leadership and two subsequent pathways: (1) a team-oriented pathway in which psychological safety inspired good teamwork, which fostered team resilience and, in turn, enhanced athletes’ satisfaction with their team’s performance; and (2) an individual-oriented pathway wherein psychological safety buffered against athletes’ burnout, thereby enhancing their health. In addition to these pathways mediated by psychological safety, the informal leaders directly influenced the performance pathway (with total effect sizes being 10 times larger than those of coaches and team captains), whereas coaches had a direct influence on the health pathway (with total effect sizes being three times larger than those of informal leaders and captains). Given the often-underestimated importance of the informal leaders, sport teams can be recommended to adopt a structure of shared leadership in which team members are encouraged to engage in identity leadership. In conclusion, we found that by nurturing a shared sense of ‘we’ and ‘us’ within the team, leaders are able to foster a psychologically safe environment, which in turn paves the way for an optimal team functioning and a healthier team.     

Resilience in elite sport and at work – A comparative analysis among German elite athletes and employees

ObjectiveThe first purpose was to examine and compare the different levels of resilience for elite athletes and employees. Second, we investigated the relationship between resilience and personality traits for both groups. Finally, we explored how resilience is linked to sporting success.DesignCross-sectional, self-report survey.MethodA total of 720 participants (mean age = 28.59, SD = 22.02, males = 51.7%, 256 elite athletes, 132 dual students, and 332 employees) were surveyed and completed scales about resilience, personality traits, and sporting success. Analysis of variance to identify mean level differences between groups and regression analysis to examine the effect of resilience on sporting success.Results and conclusionsThe group of athletes shows significantly higher levels of resilience than the groups of dual students and employees. We find positive relationships between resilience and all considered personality traits but find that the level of correlations varies. Resilience is rather a prerequisite for top-level sports participation than a predictor for sporting success.     

The influence of perceived parental responsiveness on athletes’ goal accomplishment,trait cognitive sport anxiety,and thriving: A semi-longitudinal study

The purpose of this study was to examine temporally distal influence at a three-month interval of perceived parental responsiveness on athletes’ goal accomplishment, trait cognitive sport anxiety, and thriving. Young players (154 males, 51 females, M = 12.50 years, SD = 0.65) involved in rugby, basketball, and handball participated in the study. Initially, participants set three goals to accomplish over the next three months and completed questionnaires assessing their perceptions of their parents’ responsiveness, perceived self-efficacy, and self-esteem. Three months later, participants completed questionnaires assessing their goal accomplishment, worry about sport performance, and thriving. The results showed that athletes’ perceptions of their mother’s/father’s responsiveness, mediated by perceived athletes’ self-efficacy to accomplish their goals, influenced their goal accomplishment and trait cognitive sport anxiety three months later. The results also showed that athletes’ perceptions of their mother’s/father’s responsiveness, mediated by athletes’ self-esteem, influenced athletes’ thriving and trait cognitive sport anxiety three months later. Overall, the present study uniquely contributes to the understanding of parent-athlete relationships by showing that athletes’ perceptions of their mother’s and father’s responsiveness influence certain distal outcomes three months later (i.e., goal accomplishment, sports anxiety, and thriving) while mediated by self-efficacy and self-esteem.     

Are expert athletes ‘expert’ in the cognitive laboratory? A meta‐analytic review of cognition and sport expertise

Recent literature has demonstrated the usefulness of fitness and computer‐based cognitive training as a means to enhance cognition and brain function. However, it is unclear whether the combination of fitness and cognitive training that results from years of extensive sport training also results in superior performance on tests of cognitive processes. In this study we examine, in a quantitative meta‐analysis (k = 20), the relationship between expertise in sports and laboratory‐based measures of cognition. We found that athletes performed better on measures of processing speed and a category of varied attentional paradigms, and athletes from interceptive sport types and males showed the largest effects. Based on our results, more research should be done with higher‐level cognitive tasks, such as tasks of executive function and more varied sub‐domains of visual attention. Furthermore, future studies should incorporate more female athletes and use a diverse range of sport types and levels of expertise. Copyright © 2009 John Wiley & Sons, Ltd.     

The unreachable object? Difficulties and paradoxes in the analytical relationship with borderline patients

The author investigates the main difficulties the analyst encounters in borderline patient analysis, focusing on the specific way in which such patients put the analyst's mental functioning to the test and highlighting the most salient elements of the transference-countertransference dynamic. The author picks out several of the paradoxes that characterize the analytical relationship with these patients, who are constantly seeking contact with the object, which is inevitably traumatic for them. On the basis of highly detailed clinical material, the author demonstrates how - no matter which theoretical-clinical model is adopted - a specific technical problem with these patients is how to manage their intense destructiveness. With these patients, countertransferential difficulties are inevitably predominant because of the looming threat of the destruction of the analytical relationship. Maintaining a balance between the recognition-legitimization of primary narcissistic mirroring needs and the recognition-control of narcissistic demands and attacks on the analytical link is as crucial as it is complex. The paper examines the most important therapeutic and anti-therapeutic factors, highlighting the importance of countertransference analysis and self-analysis as ways of accessing as yet unrepresented elements of the patient and analyst respectively. Particular attention is given to the role played by the analyst's subjectivity and to the enactment.     

The rebalancing act: Injured varsity women athletes’ experiences of global and sport psychological well-being

ObjectivesThe purpose of this study was to explore how seriously injured women athletes perceive and experience global and sport psychological well-being (PWB) during sport injury recovery.MethodAdopting an interpretivist constructionist approach, we conducted one semi-structured interview with twelve participants (12 interviews total), aged 18–23. All participants were currently seriously injured, with a range of six months out of sport. Through a reflexive thematic analysis (Braun & Clarke, 2019) we analyzed patterns within the data related to how injured athletes perceived and experienced global and sport specific PWB during sport injury recovery.ResultsFour overarching themes were developed: (1) my life is chaos and out of control, (2) pressures shaping response to sport injury, (3) maybe I can: adaptation from the disruption of sport injury, and (4) sport injury growth (SIG). Participants experienced an initial disruption of sport PWB and global PWB, however once they were able to adapt, they could rebalance their PWBs. Once rebalanced, participants reappraised the injury experience to be an opportunity for psychological growth and development, leading to the possibility of SIG. Findings suggest that sport injury can initially hinder one’s PWB, however once one can rebalance their PWB sport injury is perceived as a positive event that can lead to SIG.ConclusionThese findings reveal that it is important to consider the role of PWB during sport injury, as it has been identified that there are disruptions to one’s PWB. These findings help further our understanding of injured athletes’ experiences of PWB during sport injury and how athletes could be better supported to protect their PWB and mental health during recovery.     

What does visual agnosia tell us about perceptual organization and its relationship to object perception?

The authors studied 2 patients, S.M. and R.N., to examine perceptual organization and its relationship to object recognition. Both patients had normal, low-level vision and performed simple grouping operations normally but were unable to apprehend a multielement stimulus as a whole. R.N. failed to derive global structure even under optimal stimulus conditions, was less sensitive to grouping by closure, and was more impaired in object recognition than S.M. These findings suggest that perceptual organization involves a multiplicity of processes, some of which are simpler and are instantiated in lower order areas of visual cortex (e.g., collinearity). Other processes are more complex and rely on higher order visual areas (e.g., closure and shape formation). The failure to exploit these latter configural processes adversely affects object recognition.     

Is a pandemic as good as a rest? Comparing athlete burnout and stress before and after the suspension of organised team sport due to Covid-19 restrictions,and investigating the impact of athletes’ responses to this period

The COVID-19 pandemic resulted in social-distancing measures and the suspension of organised sport globally, and has been shown to have negatively impacted mental health. However, athletes may have experienced reprieve from sport demands, which have previously been linked with maladaptive responses such as burnout and stress. The aims of this study were (1) compare levels of burnout and stress reported by Gaelic games athletes pre- and post-COVID-19 suspension period, (2) explore how athletes utilised and perceived this period and the return to sport, and (3) examine the implications of this for burnout. Participants completed an online questionnaire, which included the athlete burnout questionnaire, perceived stress scale, sport emotion questionnaire, demographic questions, weekly training hours, and other hours for sport (e.g. travel) before Covid-19 (BC-19) and after the Covid-19-induced suspension (AC-19_S). Questions relating to how athletes utilised (e.g. training focus) and perceived (positive/negative impact) the period were included AC-19 S. Data was compared across time-points and we explored predictors of burnout AC-19_S. Ninety-two athletes completed the questionnaire at both time-points. No significant differences in burnout or stress were identified, suggesting the suspension period did not significantly impact these variables. Burnout BC-19, stress AC-19_S, unpleasant emotions about returning to sport and using the period to rest/recover positively predicted burnout AC-19_S. Reduction in other hours across time-points and pleasant emotions about returning predicted lower burnout. Results suggest an athletes’ response to a suspension period and subsequent return to sport can impact feelings of burnout, and may have implications for future unanticipated change events.     

Decomposing the relationship between cognitive functioning and self-referent memory beliefs in older adulthood: what’s memory got to do with it?

With advancing age, episodic memory performance shows marked declines along with concurrent reports of lower subjective memory beliefs. Given that normative age-related declines in episodic memory co-occur with declines in other cognitive domains, we examined the relationship between memory beliefs and multiple domains of cognitive functioning. Confirmatory bi-factor structural equation models were used to parse the shared and independent variance among factors representing episodic memory, psychomotor speed, and executive reasoning in one large cohort study (Senior Odyssey, N = 462), and replicated using another large cohort of healthy older adults (ACTIVE, N = 2802). Accounting for a general fluid cognitive functioning factor (comprised of the shared variance among measures of episodic memory, speed, and reasoning) attenuated the relationship between objective memory performance and subjective memory beliefs in both samples. Moreover, the general cognitive functioning factor was the strongest predictor of memory beliefs in both samples. These findings are consistent with the notion that dispositional memory beliefs may reflect perceptions of cognition more broadly. This may be one reason why memory beliefs have broad predictive validity for interventions that target fluid cognitive ability.     

How do humans group non-rigid objects in multiple object tracking?: Evidence from grouping by self-rotation

Previous studies on perceptual grouping found that people can use spatiotemporal and featural information to group spatially separated rigid objects into a unit while tracking moving objects. However, few studies have tested the role of objects’ self-motion information in perceptual grouping, although it is of great significance to the motion perception in the three-dimensional space. In natural environments, objects always move in translation and rotation at the same time. The self-rotation of the objects seriously destroys objects’ rigidity and topology, creates conflicting movement signals and results in crowding effects. Thus, this study sought to examine the specific role played by self-rotation information on grouping spatially separated non-rigid objects through a modified multiple object tracking (MOT) paradigm with self-rotating objects. Experiment 1 found that people could use self-rotation information to group spatially separated non-rigid objects, even though this information was deleterious for attentive tracking and irrelevant to the task requirements, and people seemed to use it strategically rather than automatically. Experiment 2 provided stronger evidence that this grouping advantage did come from the self-rotation per se rather than surface-level cues arising from self-rotation (e.g. similar 2D motion signals and common shapes). Experiment 3 changed the stimuli to more natural 3D cubes to strengthen the impression of self-rotation and again found that self-rotation improved grouping. Finally, Experiment 4 demonstrated that grouping by self-rotation and grouping by changing shape were statistically comparable but additive, suggesting that they were two different sources of the object information. Thus, grouping by self-rotation mainly benefited from the perceptual differences in motion flow fields rather than in deformation. Overall, this study is the first attempt to identify self-motion as a new feature that people can use to group objects in dynamic scenes and shed light on debates about what entities/units we group and what kinds of information about a target we process while tracking objects.     

Different roles of shared and vertical leadership in promoting team creativity: Cultivating and synthesizing team members’ individual creativity

Drawing on the componential model of creativity (Amabile), we examined how shared leadership and a formally appointed leader's transformational leadership jointly cultivate team creativity in two studies. We conducted an experiment with a sample of 109 undergraduate students (32 teams) enrolled in a business plan competition (Study 1) and a field survey based on multisource, time-lagged data collected from 251 full-time employees working on 64 research and development teams (Study 2). The results from both studies revealed that shared leadership enhanced team members’ individual creative self-efficacy and individual creativity, which in turn improved team creativity. Moreover, the results from Study 2 showed that a formally appointed leader's use of different transformational leadership behaviors had different impacts on individual and team creativity. Individual-focused transformational leadership strengthened the positive effect of shared leadership on team members’ average individual creativity, whereas group-focused transformational leadership facilitated the translation of teams with high average individual creativity into teams with high levels of team creativity. The theoretical and practical implications of the findings are discussed.     

Prisoners’ competence to die: hunger strike and cognitive competence

Several bioethicists have recently advocated the force-feeding of prisoners, based on the assumption that prisoners have reduced or no autonomy. This assumed lack of autonomy follows from a decrease in cognitive competence, which, in turn, supposedly derives from imprisonment and/or being on hunger strike. In brief, causal links are made between imprisonment or voluntary total fasting (VTF) and mental disorders and between mental disorders and lack of cognitive competence. I engage the bioethicists that support force-feeding by severing both of these causal links. Specifically, I refute the claims that VTF automatically and necessarily causes mental disorders such as depression, and that these mental disorders necessarily or commonly entail cognitive impairment. Instead, I critically review more nuanced approaches to assessing mental competence in hunger strikes, urging that a diagnosis of incompetence be made on a case-by-case basis—a position that is widely shared by the medical community.