Relationships between physical exercise and cognitive abilities in older adults

We investigated relationships between physical exercise and the cognitive abilities of older adults. We hypothesized that the performance of vigorous exercisers would be superior to that of sedentary individuals on measures of reasoning, working memory, and reaction time. We gave a series of cognitive tasks to 62 older men and women who exercised vigorously and 62 sedentary men and women. Multivariate and univariate analyses of variance, with age and education as covariates, indicated that the performance of the exercisers was significantly better on measures of reasoning, working memory, and reaction time. Between-group differences persisted when vocabulary, on which the performance of exercisers was superior, was used as a third covariate. Subsequent analyses showed that neither self-rated health, medical conditions, nor medications contributed to the differences between exercise groups. Results suggest that the possible contribution of physical exercise to individual differences in cognition among older adults should be further investigated.     

Exercise type relates to inhibitory and error processing functions in older adults

ABSTRACT

This study investigated the association between exercise type and inhibition of prepotent responses and error detection. Totally, 75 adults (M = 68.88 years) were classified into one of three exercise groups: those who were regular participants in open- or closed-skill forms of exercise, and those who exercised only irregularly. The participants completed a Stroop and task-switching tasks with event-related brain potentials (ERPs) recorded. The results revealed that regular exercisers displayed faster reaction times (RTs) in the Stroop task compared with irregular exercisers. The open-skill exercisers exhibited smaller N200 and larger P300a amplitudes in the Stroop task compared with irregular exercisers. Furthermore, the open-skill exercisers showed a tendency of shorter error-related negativity latencies at the task-witching test. The findings suggest that older adults may gain extra cognitive benefits in areas such as inhibition functioning and error processing from participating in open-skill forms of physical exercises.     

Perceived self-regulation of exercise goals and interfering goals among regular and irregular exercisers: a life space analysis

ObjectivesTo investigate whether adults self-classified as regular and irregular exercisers tend to differentially perceive the self-regulation of their exercise goals (a between groups comparison) and whether the groups’ differ in their self-regulatory perceptions of an exercise goal versus a goal that strongly interferes with exercise (a within groups comparison).DesignsCross-Sectional Survey.MethodsCollege students (N=399, 66% female), who were either regular or irregular exercisers, completed the Goal Systems Assessment Battery [GSAB; Karoly, P., & Ruehlman, L. S. (1995). Goal cognition and its clinical implications: Development and preliminary validation of four motivational assessment instruments. Assessment, 2, 113–129] for the goal of exercise and for a self-selected interfering goal. The GSAB gauges how individuals evaluate multiple functional components of self-regulation.ResultsA doubly multivariate MANOVA revealed a significant interaction between exercise regularity and goal type. Irregular exercisers manifested a pattern of goal regulatory thinking favoring their interfering goal relative to their exercise goal with respect to its value and the extent of their monitoring, planning, social comparison, and self-rewarding their progress toward that goal. Regular exercisers tended not to make such regulatory distinctions.ConclusionsAlthough life pursuits identified as interfering with exercise (e.g. academic goals) generally require more of a psychological investment than engaging in exercise, regular exercisers tend to construe their physical activity goals in a manner that closely matches their ratings of competing life aspirations. A dual focus on exercise goals and their aspirational rivals may inform motivational theory and intervention.     

Just Think About It: Mindfulness, Sexism, and Prejudice Toward Feminists

This study examined the relation between mindfulness, sexist motivations and beliefs, and prejudice toward women who violate traditional gender roles—namely feminists. In a preliminary study, 672 (251 men, 421 women) undergraduates from a United States Midwestern university completed a measure of mindfulness and warmth toward feminists and consistent with hypotheses, more mindfulness was associated with more warmth toward feminists. Extending this initial finding to the main study, 653 (273 men, 380 women) undergraduates from a U.S. Midwestern university completed measures of mindfulness, motivation to respond without sexism, ambivalent sexism, and warmth toward feminists. Consistent with hypotheses, compared to women participants, men participants were lower on internal motivation to respond without sexism, higher on hostile and benevolent sexism and less warm toward feminists. Also consistent with hypotheses, for men participants, more mindfulness was associated with higher internal motivation to respond without sexism, less benevolent sexism, and more warmth toward feminists. In contrast, for women participants, more mindfulness was only associated with less hostile sexism. Finally, a path analysis revealed that the positive relation between mindfulness and warmth toward feminists for men participants was partially mediated by more internal motivation to respond without sexism (i.e., a significant indirect effect), but not by less sexist beliefs. Implications for mindfulness, sexism, and prejudice more generally are discussed.     

Mindfulness and emotional distress: The role of negatively biased cognition

Mindfulness is a receptive attention to and awareness of events and experiences as they occur. A substantial body of literature supports the usefulness of mindfulness-based approaches for preventing or reducing emotional distress (e.g., depression and anxiety). However, mechanisms by which mindfulness produces these benefits are still being explored. Cognitive theories of emotional disorder implicate negatively biased cognition as a primary source of distress, and the theoretical literature on mindfulness suggests that it may reduce biased thoughts and judgments. Thus, the present research tested a mediation model in which less negatively biased cognition explains the inverse relation between mindfulness and emotional distress. Participants completed multiple standardized measures of trait mindfulness, negatively biased cognition, and emotional distress. The proposed relations between these constructs then were examined using structural equation modeling. Support was found for a partial mediation model, and possible alternative models were ruled out. These findings highlight a previously unidentified cognitive mechanism to explain the relation between mindfulness and reduced emotional distress. Specifically, mindfulness may reduce negative, maladaptive cognitive styles, which in turn may reduce predisposition to emotional disorders.     

Mood state changes of women as a function of regular aerobic exercise

The present study examined mood states of aerobic exercisers before and after completing a 15-wk. program. The subjects (ages 18 to 36 yr.) were 86 women enrolled in activity classes at a large state school in the southeast. Subjects were initially classified according to previous exercise habits. Analysis indicated both groups of frequent and infrequent exercisers were similar in mood states. Participation in regular exercise did not significantly change or enhance the mood states from pretreatment measures. Pretest measures of mood states provided poor prediction of posttest measures, indicating extreme variability in subjects' scores.     

Delineating the contributions of sustained attention and working memory to individual differences in mindfulness

Mindfulness can be deconstructed into two constituent components: present-moment awareness and acceptance. Attention and working memory are theorized to contribute to individual differences in trait mindfulness, although the precise relationship among these constructs remains unclear. The purpose of the present study was to evaluate the association of neurocognitive indices of attention and working memory with a bidimensional trait measure of mindfulness. Fifty-five psychiatrically and neurologically healthy adults completed the Conners Continuous Performance Test, Penn Letter N-back Test, and Philadelphia Mindfulness Scale. Results indicated that present-moment awareness was associated with a response speed variability measure of sustained attention, whereas acceptance was more strongly linked to working memory efficiency, even after accounting for general intellectual ability. These findings suggest that sustained attention and working memory capacities may differentially subserve individual differences in present-moment awareness and acceptance, thereby illuminating our understanding of the cognitive mechanisms which may underlie trait mindfulness.     

Mindfulness-based Mind Fitness Training: A Case Study of a High-Stress Predeployment Military Cohort

Current military deployments have resulted in many psychological and physical health issues and created interest in protective measures to mitigate effects of prolonged and repetitive stress. Mindfulness training has been successfully used for stress reduction in other contexts. The following case report presents a detachment of U.S. Marines who received Mindfulness-Based Mind Fitness Training (MMFT) prior to deployment. Self-report measures of mindfulness, perceptions of stress, predictors of compliance with mindfulness practice, and time spent engaging in practice were indexed. More time spent engaging in practice corresponded with greater self-reported mindfulness; increases in mindfulness were associated with decreases in perceived stress.     

Intensive mindfulness training-related changes in cognitive and emotional experience

This study examined the role of intensive mindfulness training on changes in day-to-day experiential processing, psychological symptoms, resilience, and well-being in two groups of community adults (N = 69). Using both quasi-experimental and longitudinal methods, the study found that intensive training, operationalized as 10–12 hours of formal mindfulness practice per day for 1 month, was significantly related to increases in training-specific experiential processing capacities, namely trait mindfulness and decentering (reperceiving), in comparison to pre–post-training wait-list controls. In both training groups combined, mindfulness, decentering, and acceptance increased over the pre-training to 1-month follow-up period. Intensive mindfulness training was also related to declines in anxiety and enhanced both subjective well-being and self-compassion from pre-training to follow-up in the two training groups. Finally, increases in trait mindfulness and acceptance were related to improvements in psychological symptoms, well-being, and resilience. Future directions for this novel area of mindfulness research are discussed.     

Acute Thoughts,Exercise Consistency,and Coping Self‐Efficacy1

One study purpose was to determine whether individuals classified with respect to consistency of exercise adherence and acute thinking tone differed on coping self‐efficacy, decisional struggle, exercise intention, and affect. A second study purpose was to examine whether coping self‐efficacy predicted struggle, intention, and affect. Participants were 160 healthy people (Mage = 25.6 years) exercising in fitness settings. Social cognitive, affect, and exercise consistency measures were obtained concurrently. A multivariate analysis indicated that positive thinkers experienced significantly lower decisional struggle and higher coping self‐efficacy compared to negative thinkers. Further, consistent exercisers experienced significantly lower decisional struggle and higher coping self‐efficacy, intention, and positive affect compared to inconsistent exercisers. Regression analyses indicated that coping self‐efficacy significantly predicted decisional struggle and intention.     

勿以善小而不为：正念与智慧——社会善念与观点采择的链式中介

基于正念的去自我中心机制,提出正念可通过观点采择与社会善念的链式中介对智慧产生正向效应的假设,运用问卷横断自评、正念干预和社会善念的操纵等多种方法从特质与状态层面进行验证(总样本量为909)。研究表明,特质层面的正念与社会善念、智慧两两正相关,可正向预测社会善念与智慧,并验证了社会善念的中介作用(研究1);从状态层面发现正念干预能在短期内有效提升个体的状态社会善念与智慧推理水平,再次验证社会善念的中介效应(研究2);受到操纵的社会善念也能够提升正念对智慧的正向预测效应,不仅验证了社会善念中介作用的稳健性,也验证了社会善念与智慧的因果关联,同时,观点采择与社会善念的链式中介作用也得到了研究结果的支持(研究3),即具备特质正念或进行正念练习时体验状态正念的个体,更易运用观点采择能力,在人际互动中表现出善意关注,由此作出考量他人的智慧决策。     

Acceptance in Cognitive Behavioral Psychotherapies: Different or the Same?

Acceptance is a key construct in both rational emotive behavior therapy (REBT) and acceptance and commitment therapy (ACT). The objectives of this study were to assess and compare the properties of ACT acceptance with those of REBT acceptance in predicting emotions. A sample of 112 subjects, comprising different educational and occupational status, completed three measures of acceptance (REBT and ACT), two of mindfulness, as well as completing depression and anxiety scales. Both ACT acceptance as process and REBT acceptance could predict significant ACT acceptance as outcome. Mindfulness as a trait also predicted the level of ACT outcome acceptance as well as the level of REBT acceptance, but mindfulness as process predicted only ACT outcome acceptance. The results show that REBT acceptance, ACT acceptance and mindfulness can explain anxiety and depression in different ways. The results show that the difference between ACT acceptance and REBT acceptance primary concern the process of acceptance, most likely due to the underlying cognitive processing. The outcome acceptance and emotional level are similar in the two conditions. Future research should employ multiple cognitive measurements.     

The role of dark‐side of motivation and intention to continue in exercise: A self‐determination theory approach

Motivation plays an important role when it comes to regular physical exercise. Hence, low levels of intentions to continue exercising in the future may ultimately lead to higher rates of exercise dropout. The first objective of the present research was to test a theoretical model considering the dark side of motivational determinants on intentions towards exercising in the future. The second objective consisted in comparing groups with different characteristics, as a way to identify individuals with weaker intention, which is believed to be an indicator of a higher dropout risk. In total, 544 (294 female; 250 male) gym exercisers aged between 18 and 58 years (M = 35.00; SD = 11.57) partook in the present research. Participants were engaged in fitness group classes (n = 273) or in cardio/resistance workouts (n = 271), and their exercise experience ranged from 3 to 120 months (M = 47.41; SD = 7.54). Results showed that the measurement and the structural model had an excellent fit. In addition, the structural model was invariant between gender, fitness activities, and exercise experience. Each group displayed different explained variance in intention to continue exercising. Overall, male, young adults and more experienced exercisers had stronger intentions towards exercising. Fitness instructors should be aware of their own thwarting behaviors, especially when interacting with female, young and less experienced exercisers, since they have weaker intentions to exercise in the future, possibly representing an increased risk of withdrawal.     

Prospective and Daily Measures of Acute Thoughts, Decisional Struggle, and Coping: Measurement Correspondence and the Prediction of Exercise in Young Adults

Information on the daily stability–variability of decision-making social cognitions has not been obtained. Two purposes were: (1) to examine the correspondence between 1-week prospective and daily measures of acute exercise thoughts, decisional struggle, coping frequency, and coping self-efficacy and (2) prediction of moderate exercise. Seventy-seven experienced exercisers ( M age=22.36 years) completed a 1-week prospective and daily measures of social cognitions. Prospective and aggregated daily acute thoughts were the only non-correspondent measures. Aggregated daily acute thoughts were the only significant predictor of exercise (ß_standardized=.78, p <.01). Daily acute thoughts may be a determinant of moderate exercise in experienced exercisers due to the unpredictable nature of daily events, warranting attention to making daily exercise decisions.     

Mindfulness and Acceptance-Based Group Therapy for Social Anxiety Disorder: An Open Trial

Mindfulness and Acceptance-Based Group Therapy (MAGT) for Social Anxiety Disorder (SAD) is based largely on Acceptance and Commitment Therapy (ACT; Hayes et al., 1999), with enhanced mindfulness mostly from Mindfulness-Based Cognitive Therapy (MBCT; Segal et al., 2002). The purpose of this study was to assess the feasibility and initial effectiveness of MAGT for the treatment of SAD. Forty-two SAD patients were invited to take part in an open trial of MAGT. Participants completed measures of social anxiety, mindfulness and acceptance, depression, and rumination at pretreatment, midtreatment (6 weeks), posttreatment (12 weeks), and at a 3-month follow-up session. Twenty-nine participants completed the treatment and these participants reported that the treatment was helpful. Effect sizes for treatment completers ranged from 1.00 to 1.17 for the social anxiety symptom measures at follow-up. Intent-to-treat analyses revealed significant reductions in social anxiety, depression, and rumination and significant increases in mindfulness and acceptance, with effect sizes ranging from .65 to .76 on the social anxiety measures. This study demonstrates that MAGT is feasible and acceptable to SAD patients and provides further support for the use of mindfulness and acceptance-based interventions for the treatment of SAD.     

正念对饮食行为的影响及作用机理

正念是一种以不批判的态度全然接纳当下体验的觉察力,正念训练对改善不良饮食行为的积极作用正日益受到研究者的广泛关注。本文对正念在改善不良饮食行为中的积极作用与机理,以及基于正念的不良饮食行为矫正方法进行了梳理与归纳。在已有研究的基础上,未来研究需要进一步探索正念对健康饮食行为的作用、从生命周期的视角考察正念对饮食行为的影响、基于思维压抑视角探讨正念的作用机制以及检验正念不良饮食矫正效果的边界。     

Aging, exercise, and attention.

The authors investigated the relationship among aging, attentional processes, and exercise in 2 experiments. First they examined age differences on 2 attentional tasks, a time-sharing task and an attentional flexibility task. Young adults alternated attention between 2 sequenced tasks more rapidly and time-shared the processing of 2 tasks more efficiently than older adults. They then investigated the effects of aerobic exercise on the same 2 attentional tasks in older adults. Following the 10-week exercise program, older exercisers showed substantially more improvement in alternation speed and time-sharing efficiency than older controls. Interestingly, this exercise effect was specific to dual-task processing. Both groups of subjects showed equivalent effects on single-task performance. These results indicate that aerobic exercise can exert a beneficial influence on the efficiency of at least 2 different attentional processes in older adults.     

Type of physical exercise and inhibitory function in older adults: An event-related potential study

ObjectivesThe present study was to examine the relationship between exercise type and inhibitory function in older adults using neuroelectric indices.DesignA cross-sectional design was employed in the present study.MethodSixty adults (M = 69.42 years) were categorized into open-skill, closed-skill, and irregular exercise groups according to their history of exercise participation. The participants conducted a flanker task while their behavioral performance and event-related brain potentials were assessed.ResultsThe results indicated that regular exercisers, regardless of exercise type, exhibited a faster reaction time across conditions of the flanker task compared to irregular exercisers. For the P300 amplitude of the open-skill exerciser group, the peak amplitude was larger at the vertex site compared to the frontal site, whereas no site differences were observed in the closed-skill and irregular exerciser groups.ConclusionsThese findings extend current knowledge by suggesting that, for older adults, participation in physical exercise involving increased cognitive demand is associated with better neural efficiency in resource allocation for tasks that require interference control.     

A randomized controlled trial of compassion cultivation training: Effects on mindfulness,affect, and emotion regulation

Compassion is a positive orientation towards suffering that may be enhanced through compassion training and is thought to influence psychological functioning. However, the effects of compassion training on mindfulness, affect, and emotion regulation are not known. We conducted a randomized controlled trial in which 100 adults from the community were randomly assigned to either a 9-week compassion cultivation training (CCT) or a waitlist (WL) control condition. Participants completed self-report inventories that measured mindfulness, positive and negative affect, and emotion regulation. Compared to WL, CCT resulted in increased mindfulness and happiness, as well as decreased worry and emotional suppression. Within CCT, the amount of formal meditation practiced was related to reductions in worry and emotional suppression. These findings suggest that compassion cultivation training effects cognitive and emotion factors that support psychological flexible and adaptive functioning.     

正念是什么——从正念内涵研究发展角度的思考

"正念是什么"是正念研究中的基本问题,也是长期困扰研究者的难题,造成此困境的重要原因是正念跨越了佛学与心理学两种语境。在正念内涵研究历程中,研究者们先后试图以"去神秘化"、"去语境化"及"整合化"来解决跨语境所造成的问题。本研究认为:正念为多维概念,其内涵的复杂性决定了研究者对正念的认识并非静态的判断,而是逐步成熟的过程;应深入整合佛学与心理学语境,以发展的视角看待正念。