Brain training is a large and expanding industry, and yet there is a recurrent and ongoing debate concerning its scientific basis or evidence for efficacy. Much of evidence for the efficacy of brain ...training within this debate is from small-scale studies that do not assess the type of "brain training," the specificity of transfer effects, or the length of training required to achieve a generalized effect. To explore these factors, we analyze cross-sectional data from two large Internet-cohort studies (total
= 60,222) to determine whether cognition differs at the population level for individuals who report that they brain train on different devices, and across different timeframes, with programs in common use circa 2010-2013. Examining scores for an assessment of working-memory, reasoning and verbal abilities shows no cognitive advantages for individuals who brain train. This contrasts unfavorably with significant advantages for individuals who regularly undertake other cognitive pursuits such as computer, board and card games. However, finer grained analyses reveal a more complex relationship between brain training and cognitive performance. Specifically, individuals who have just begun to brain train start from a low cognitive baseline compared to individuals who have never engaged in brain training, whereas those who have trained for a year or more have higher working-memory and verbal scores compared to those who have just started, thus suggesting an efficacy for brain training over an
period of time. The advantages in global function, working memory, and verbal memory after several months of training are plausible and of clinically relevant scale. However, this relationship is not evident for reasoning performance or self-report measures of everyday function (e.g., employment status and problems with attention). These results accord with the view that although brain training programs can produce benefits, these might extend to tasks that are operationally similar to the training regime. Furthermore, the duration of training regime required for effective enhancement of cognitive performance is longer than that applied in most previous studies.
Placebo effects in cognitive training Foroughi, Cyrus K.; Monfort, Samuel S.; Paczynski, Martin ...
Proceedings of the National Academy of Sciences - PNAS,
07/2016, Letnik:
113, Številka:
27
Journal Article
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Although a large body of research shows that general cognitive ability is heritable and stable in young adults, there is recent evidence that fluid intelligence can be heightened with cognitive ...training. Many researchers, however, have questioned the methodology of the cognitive-training studies reporting improvements in fluid intelligence: specifically, the role of placebo effects. We designed a procedure to intentionally induce a placebo effect via overt recruitment in an effort to evaluate the role of placebo effects in fluid intelligence gains from cognitive training. Individuals who self-selected into the placebo group by responding to a suggestive flyer showed improvements after a single, 1-h session of cognitive training that equates to a 5- to 10-point increase on a standard IQ test. Controls responding to a nonsuggestive flyer showed no improvement. These findings provide an alternative explanation for effects observed in the cognitive-training literature and the brain-training industry, revealing the need to account for confounds in future research.
•Useful Field of View training improves neural outcomes, speed of processing, and attention.•Useful Field of View training improves older adults’ everyday function.•Improvements from Useful Field of ...View training endure across ten years.
Systematic review and meta-analyses were conducted of Useful Field of View (UFOV) training, which was evaluated by Institute of Medicine criteria. Forty-four studies of UFOV training from 17 randomized trials conducted among adults were identified in systematic review. Results addressing the Institute of Medicine criteria indicated that: (a) UFOV training enhanced neural outcomes, speed of processing, and attention. (b) UFOV training effects were equivalent when compared to active- or no-contact control conditions. (c) UFOV training showed far transfer to everyday function. (d) Improvements on the trained skills endured across ten years. (e) Half of the clinical trials identified were conducted by researchers without financial interests in UFOV training. Results indicated that UFOV training effects were larger for adaptive- than non-adaptive training techniques, and in community-based as compared to clinical samples. UFOV training did not transfer to other neuropsychological outcomes, but positively enhanced well-being, health, and quality of life longitudinally. Criticisms of cognitive training are addressed. UFOV training should be implemented among older adults to improve real-world functional outcomes and well-being.
Do "Brain-Training" Programs Work? Simons, Daniel J.; Boot, Walter R.; Charness, Neil ...
Psychological science in the public interest,
10/2016, Letnik:
17, Številka:
3
Journal Article
In 2014, two groups of scientists published open letters on the efficacy of brain-training interventions, or "brain games," for improving cognition. The first letter, a consensus statement from an ...international group of more than 70 scientists, claimed that brain games do not provide a scientifically grounded way to improve cognitive functioning or to stave off cognitive decline. Several months later, an international group of 133 scientists and practitioners countered that the literature is replete with demonstrations of the benefits of brain training for a wide variety of cognitive and everyday activities. How could two teams of scientists examine the same literature and come to conflicting "consensus" views about the effectiveness of brain training? In part, the disagreement might result from different standards used when evaluating the evidence. To date, the field has lacked a comprehensive review of the brain-training literature, one that examines both the quantity and the quality of the evidence according to a well-defined set of best practices. This article provides such a review, focusing exclusively on the use of cognitive tasks or games as a means to enhance performance on other tasks. We specify and justify a set of best practices for such brain-training interventions and then use those standards to evaluate all of the published peer-reviewed intervention studies cited on the websites of leading brain-training companies listed on Cognitive Training Data (www.cognitivetrainingdata.org), the site hosting the open letter from brain-training proponents. These citations presumably represent the evidence that best supports the claims of effectiveness. Based on this examination, we find extensive evidence that brain-training interventions improve performance on the trained tasks, less evidence that such interventions improve performance on closely related tasks, and little evidence that training enhances performance on distantly related tasks or that training improves everyday cognitive performance. We also find that many of the published intervention studies had major shortcomings in design or analysis that preclude definitive conclusions about the efficacy of training, and that none of the cited studies conformed to all of the best practices we identify as essential to drawing clear conclusions about the benefits of brain training for everyday activities. We conclude with detailed recommendations for scientists, funding agencies, and policymakers that, if adopted, would lead to better evidence regarding the efficacy of brain-training interventions.
Mindfulness meditation interventions-which train skills in monitoring present-moment experiences with a lens of acceptance-have shown promise for increasing positive emotions. Using a theory-based ...approach, we hypothesized that learning acceptance skills in mindfulness interventions helps people notice more positive experiences in daily life, and tested whether removing acceptance training from mindfulness interventions would eliminate intervention-related boosts in positive affect. In 2 randomized controlled trials (RCTs) of stressed community adults, mindfulness skills were dismantled into 2 structurally equivalent interventions: (a) training in both monitoring and acceptance (Monitor + Accept) and (b) training in monitoring only (Monitor Only) without acceptance training. Study 1 tested 8-week group-based Monitor + Accept and Monitor Only interventions compared with a no treatment control group. Study 2 tested 2-week smartphone-based Monitor + Accept and Monitor Only interventions compared with an active control training. In both studies, end-of-day and momentary positive affect and negative affect were measured in daily life for 3 days pre- and post-intervention using ambulatory assessments. As predicted, across 2 RCTs, Monitor + Accept training increased positive affect compared with both Monitor Only and control groups. In Study 1, this effect was observed in end-of-day positive affect. In Study 2, this effect was found in both end-of-day and momentary positive affect outcomes. In contrast, all active interventions in Studies 1 and 2 decreased negative affect. These studies provide the first experimental evidence that developing an orientation of acceptance toward present-moment experiences is a central mechanism of mindfulness interventions for boosting positive emotions in daily life.
The metacognitive ability to introspect about self-performance varies substantially across individuals. Given that effective monitoring of performance is deemed important for effective behavioral ...control, intervening to improve metacognition may have widespread benefits, for example in educational and clinical settings. However, it is unknown whether and how metacognition can be systematically improved through training independently of task performance, or whether metacognitive improvements generalize across different task domains. Across 8 sessions, here we provided feedback to two groups of participants in a perceptual discrimination task: an experimental group (n = 29) received feedback on their metacognitive judgments, while an active control group (n = 32) received feedback on their decision performance only. Relative to the control group, adaptive training led to increases in metacognitive calibration (as assessed by Brier scores), which generalized both to untrained stimuli and an untrained task (recognition memory). Leveraging signal detection modeling we found that metacognitive improvements were driven both by changes in metacognitive efficiency (meta-d′/d′) and confidence level, and that later increases in metacognitive efficiency were positively mediated by earlier shifts in confidence. Our results reveal a striking malleability of introspection and indicate the potential for a domain-general enhancement of metacognitive abilities.
The recent upsurge in "brain training and perceptual-cognitive training," proposing to improve isolated processes, such as brain function, visual perception, and decision-making, has created ...significant interest in elite sports practitioners, seeking to create an "edge" for athletes. The claims of these related "performance-enhancing industries" can be considered together as part of a
proposing enhanced cognitive and perceptual skills and brain capacity to support performance in everyday life activities, including sport. For example, the "process training industry" promotes the idea that playing games not only makes you a better player but also makes you smarter, more alert, and a faster learner. In this position paper, we critically evaluate the effectiveness of both types of process training programmes in generalizing transfer to sport performance. These issues are addressed in three stages. First, we evaluate empirical evidence in support of perceptual-cognitive process training and its application to enhancing sport performance. Second, we critically review putative modularized mechanisms underpinning this kind of training, addressing limitations and subsequent problems. Specifically, we consider merits of this highly specific form of training, which focuses on training of isolated processes such as cognitive processes (attention, memory, thinking) and visual perception processes, separately from performance behaviors and actions. We conclude that these approaches may, at best, provide some "general transfer" of underlying processes to specific sport environments, but lack "specificity of transfer" to contextualize actual performance behaviors. A major weakness of process training methods is their focus on enhancing the performance in body "modules" (e.g., eye, brain, memory, anticipatory sub-systems). What is lacking is evidence on
these isolated components are modified and subsequently interact with other process "modules," which are considered to underlie sport performance. Finally, we propose how an ecological dynamics approach, aligned with an embodied framework of cognition undermines the rationale that modularized processes can enhance performance in competitive sport. An ecological dynamics perspective proposes that the body is a complex adaptive system, interacting with performance environments in a functionally integrated manner, emphasizing that the inter-relation between motor processes, cognitive and perceptual functions, and the constraints of a sport task is best understood at the performer-environment scale of analysis.
•Does playing computer games affect executive function in young adults?•Lack of evidence that off-the-shelf games promote executive function.•Lack of stable evidence that brain training games promote ...executive function.•Promising evidence that focused computer games promote executive function.•Shows role of cognitive principles in computer game design.
The goal of this focused review is to examine the potential of using computer games as vehicles for improving cognitive skills in young adults, particularly the cognitive development of executive function skills, such as being able to shift attention efficiently from one task to another (i.e., shifting). On the disappointing side, this review finds a lack of convincing evidence that off-the-shelf games (often designed for entertainment) promote executive function skills. In addition, there is a lack of consistent evidence that long-term exposure to brain training games, such as offered in Lumosity, improves performance on non-game measures of executive function such as shifting (Bainbridge & Mayer, 2018). However, on the encouraging side, this review finds promising evidence for the benefits of playing a focused computer game that is designed to provide repeated practice on a targeted executive function skill (e.g., shifting) in a variety of contexts, at progressively increasing levels of challenge, and with clear feedback (Parong et al., 2017). The most promising direction for games aimed at fostering the cognitive development of executive function skills is to create mini-games that target a specific skill and are grounded in cognitive theories of skill learning.
The purpose of this article is to clarify the relationship between Executive Functions (EF) training and giftedness. In this paper we provide a literature review of condemnatory literature. ...Executive Functions are a set of cognitive skills considered as necessary for the cognitive control of behavior and they are important for self- regulation and adaptation. The proper functioning of the executive functions is associated with high IQ. Moreover, executive function training can be achieved by brain training programs, that aim to improve basic brain functions. Through education, various tasks are improved. Techniques that improve cognitive skills can benefit individuals with superior mental abilities and can be used as intervention techniques to improve and develop giftedness. The training of executive functions can be achieved through brain training. Brain training is a scientific field that has highly progressed over the last years and has offered extremely interesting results that lead to new developments in the field of giftedness. After analyzing what brain training is, we refer to the executive functions that can improve through brain training. Afterwards, we refer to brain training programs, which have had positive effects on the training of executive functions.
Resumen: El propósito de este artículo es aclarar la relaciόn entre la formaciόn de funciones ejecutivas y la superdotación. En este artículo proporcionamos una revisión de la literatura condenatoria. Las funciones ejecutivas son un conjunto de habilidades cognitivas consideradas necesarias para el control cognitivo de la conducta y son importantes para la autorregulación y adaptación. El buen funcionamiento de las funciones ejecutivas está asociado a un alto coeficiente intelectual. Además, el entrenamiento de la función ejecutiva se puede lograr con programas de entrenamiento cerebral, que tienen como objetivo mejorar las funciones cerebrales básicas. A través de la educación, se mejoran varias tareas. Las técnicas que mejoran las habilidades cognitivas pueden beneficiar a las personas con capacidades mentales superiores y pueden utilizarse como técnicas de intervención para mejorar y desarrollar la superdotación. El entrenamiento de las funciones ejecutivas se puede lograr mediante el entrenamiento del cerebro. El Brain Training es un campo científico que ha avanzado mucho en los últimos años y ha ofrecido resultados sumamente interesantes que conducen a nuevos desarrollos en el campo de la superdotación. Tras analizar qué es el entrenamiento cerebral, nos referimos a las funciones ejecutivas que pueden mejorar mediante el entrenamiento cerebral. Posteriormente, nos referimos a los programas de entrenamiento cerebral, que han tenido efectos positivos en el entrenamiento de las funciones ejecutivas.
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