Effect of meditation training on aspects of coronary-prone behavior

52 undergraduates who had volunteered to receive meditation training were placed into either high or low time-urgency groups based on their scores on Factor S of the Jenkins Activity Survey. Subjects then either received training in Clinically Standardized Meditation followed by 3 1/2-wk. of practice or waited for training during that period. Analyses of scores on a time-estimation task and of self-reported hostility during an enforced waiting task indicated that meditation significantly altered subjects' perceptions of the passage of time and reduced impatience and hostility resulting from enforced waiting.     

Mindfulness and mind wandering: The protective effects of brief meditation in anxious individuals

Mind wandering can be costly, especially when we are engaged in attentionally demanding tasks. Preliminary studies suggest that mindfulness can be a promising antidote for mind wandering, albeit the evidence is mixed. To better understand the exact impact of mindfulness on mind wandering, we had a sample of highly anxious undergraduate students complete a sustained-attention task during which off-task thoughts including mind wandering were assessed. Participants were randomly assigned to a meditation or control condition, after which the sustained-attention task was repeated. In general, our results indicate that mindfulness training may only have protective effects on mind wandering for anxious individuals. Meditation prevented the increase of mind wandering over time and ameliorated performance disruption during off-task episodes. In addition, we found that the meditation intervention appeared to promote a switch of attentional focus from the internal to present-moment external world, suggesting important implications for treating worrying in anxious populations.     

Reflective learning: the use of “if only ...” statements to improve performance

Affective and functional roles of counterfactual thoughts were explored in this two-phase mixed-method study. In Phase I participants recalled disappointing academic events, generated counterfactuals (i.e., what ifs) in response to their performance, and then rated their affect, attribution, and academic locus of control. A statistically significant relationship, r=–0.47, was revealed between students' internal locus of control and the number of counterfactuals they generated. That is, a high sense of personal responsibility and control corresponded to a high number of counterfactuals. In Phase II of the study, a computerized program was utilized in which participants completed a series of anagrams after selecting specific parameters of the task. After feedback, students suggested alternate behaviors that would have changed their anagram scores. Students who compared their performance to a better performance reported lower affect but yielded a greater improvement in scores on a subsequent anagram task than students who compared their performance to a poorer performance. Findings with this sample of high school students were congruent with findings based on college students. Implications are discussed.     

The relationship between measures of executive function, motor performance and externalising behaviour in 5- and 6-year-old children

In his cognitive-energetic model of information processing Sergeant [Sergeant, J. (2000). The cognitive-energetic model: An empirical approach to ADHD. Neuroscience and Biobehavioral Reviews, 24, 7-12] links executive function (EF) to motor behaviour. This link has been supported by evidence from a number of sources including studies of attention deficit hyperactivity disorder (ADHD) and developmental coordination disorder (DCD). Little is known developmentally about this association. Given the rapid change in both motor proficiency and EF that takes place in the pre-school years, this appears an important time to look for the emergence of the link between these factors. In this study we tested 5- and 6-year-old children on motor tasks from the movement assessment battery for children and on measures of response inhibition (Stroop and stop-signal task) and examined the relationship between scores on these measures. Additionally, in order to relate this behaviour to everyday function, the Rowe behavioural rating inventory (RBRI), a teachers' behavioural rating of externalising behaviour, was also gathered and this related to EF and motor performance. It was found that motor performance correlated significantly with RBRI scores (better motor performance with lower externalising behaviour) and with Stroop performance. The relationship between motor performance and stop-signal task performance was in the expected direction but failed to reach significance and there was no clear association between performance on the stop-signal task and either Stroop or RBRI scores. The results are discussed in relation to different aspects of response inhibition (inhibition of a pre-potent response, interference control) and how these might relate to motor control.     

Transcendental meditation, mindfulness, and longevity: an experimental study with the elderly

Can direct change in state of consciousness through specific mental techniques extend human life and reverse age-related declines? To address this question, 73 residents of 8 homes for the elderly (mean age = 81 years) were randomly assigned among no treatment and 3 treatments highly similar in external structure and expectations: the Transcendental Meditation (TM) program, mindfulness training (MF) in active distinction making, or a relaxation (low mindfulness) program. A planned comparison indicated that the "restful alert" TM group improved most, followed by MF, in contrast to relaxation and no-treatment groups, on paired associate learning; 2 measures of cognitive flexibility; mental health; systolic blood pressure; and ratings of behavioral flexibility, aging, and treatment efficacy. The MF group improved most, followed by TM, on perceived control and word fluency. After 3 years, survival rate was 100% for TM and 87.5% for MF in contrast to lower rates for other groups.     

Progressive relaxation and meditation : A study of psychophysiological and therapeutic differences between two techniques

Physiological and self-report data were collected on anxious subjects who participated in a study comparing progressive relaxation, meditation and a waiting-list control. The data provide some support for the Schwartz, Davidson and Goleman (1978) hypothesis of specific effects for different relaxation procedures, superimposed upon a generalized relaxation response. The similarities between techniques, however, were greater than the differences, both on physiological and self-report measures. Both techniques generated positive expectancies and produced decreases in a variety of self-reported symptoms and on EMG: but no skin conductance or frontal EEG effects were observed. Progressive relaxation produced bigger decreases in forearm EMG responsiveness to stressful stimulation and a generally more powerful therapeutic effect than meditation. Meditation produced greater cardiac orienting responses to stressful stimuli, greater absorption in the task and better motivation to practice than progressive relaxation; but it also produced more reports of increased transient anxiety. We found no significant differences between conditions in the therapeutic expectancies they generated. The clinical implications of these findings are discussed.     

The effect of sleep deprivation on signal detection parameters

Twelve subjects performed a high signal rate vigilance task, once after a night's sleep, and once after a night without sleep. Raw scores were transformed into the signal detection parameters, d' and β. After sleep deprivation, detection performance was significantly impaired. This was reflected in a fall of d', whereas β was not significantly altered. Analysing the control data alone for comparison with other vigilance studies revealed a decrement in % signals detected and d', and an increase in β from the first to the second half of the test.     

Re: Views

Book reviewed in this article: Popular Psychology Caveat Emptor: Psychology Today: The Magazine of Human Experience. Popular Psychology Caveat Emptor: The Intimate Enemy: How to Fight Fair in Love and Marriage. George R. Bach and Peter Wyden. Popular Psychology Caveat Emptor: Body Language. Julius Fast. Popular Psychology Caveat Emptor: I'm OK, You're OK. Thomas A. Harris. Have it Your Way: Don't Say YES When You Want To Say NO. Herbert Fensterheim and Jean Baer. Have it Your Way: When I say no, I feel guilty. Manuel J. Smith. Have it Your Way: Stand Up, Speak Out, Talk Back! The Key to Self-Assertive Behavior. Robert. Alberti and Michael L. Emmons. McDonaldized Meditation: TM: Discovering Inner Energy and Overcoming Stress. Harold H. Bloomfield, Michael Peter Cain, Dennis T. Jaffe, and Robert B. Kory. McDonaldized Meditation: The TM Book: How to Enjoy the Rest of Your Life. Denise Denniston and Peter McWilliams. McDonaldized Meditation: Transcendental Meditation. Jack Forem. McDonaldized Meditation: Tranquility Without Pills. Jhan Robbins and David Fisher     

The effects of relaxation response meditation on the symptoms of irritable bowel syndrome: results of a controlled treatment study.

In this study, Herbert Benson's (1975) Relaxation Response Meditation program was tested as a possible treatment for Irritable Bowel Syndrome (IBS). Participants were 16 adults who were matched into pairs based on presence of Axis I disorder, primary IBS symptoms and demographic features and randomized to either a six week meditation condition or a six week wait list symptom monitoring condition. Thirteen participants completed treatment and follow-up. All subjects assigned to the Wait List were subsequently treated. Patients in the treatment condition were taught the meditation technique and asked to practice it twice a day for 15 minutes. Composite Primary IBS Symptom Reduction (CPSR) scores were calculated for each patient from end of baseline to two weeks post-treatment (or to post wait list). One tailed independent sample t-tests revealed that Meditation was superior to the control (P=0.04). Significant within-subject improvements were noted for flatulence (P=0.03) and belching (P=0.02) by post-treatment. By three month follow-up, significant improvements in flatulence (P<0.01), belching (P=0.02), bloating (P=0.05), and diarrhea (P=0.03) were shown by symptom diary. Constipation approached significance (P=0.07). Benson's Relaxation Response Meditation appears to be a viable treatment for IBS.     

The processing of deviant information in prediction and evaluation

Analyses of information integration and of retention were used to examine the processing of deviant information in prediction and evaluation tasks. Sets of test scores were presented serially for a group of hypothetical students, and subjects were asked to evaluate the performance of each student or predict each student’s performance on a comprehensive final exam. An averaging model with greater weight for the more recent scores than for the earlier scores was supported for both types of task, but the recency was more pronounced in the prediction task. Weighting of deviant scores differed in the prediction and evaluation tasks. Significant discounting (underweighting) of deviant scores was obtained only in the prediction task, The ability to recall deviant scores on uncued tests of retention was higher in the prediction task than in the evaluation task. Prediction of future performance based on inconsistent measures of past performance thus appears to be an active process involving the discovery and discounting of unrepresentative information.     

Locus of control and the effects of success and failure in young and community-residing aged women1

A study was conducted to examine reactions to success and failure in young and elderly subjects. Young and aged women, previously classified as internals or externals according to scores on a version of Rotter's (1966) Locus of Control Scale, were asked to work on cognitive problems while listening to bursts of noise. Two experimental conditions were created. One group (perceived success) was led to believe they were successfully avoiding bursts of noise by correctly solving the problems. A second group (perceived failure) believed they were unsuccessful at the problems and not avoiding noises. To test the generality of the effects of the treatments, subsequent performance was assessed on first, a similar task administered by the original experimenter, and secondly, on a dissimilar task given by a different experimenter in another setting. Results on a similar task indicated that subjects showed poor performance following failure regardless of age or locus of control classification. However, internals performed better than externals after both success and failure treatments. Testing the generality of these effects with a dissimilar task, results indicated that externals tended to perform somewhat more poorly after failure and internals somewhat better after failure. However, these I-E differences in reactions to success and failure were largely due to the elderly group, and old-externals showed the poorest performance after failure. The results were interpreted in terms of the particular importance of locus of control as a determinant of adaptability to stress in the elderly.     

Age effects on attentional blink performance in meditation

Here we explore whether mental training in the form of meditation can help to overcome age-related attentional decline. We compared performance on the attentional blink task between three populations: A group of long-term meditation practitioners within an older population, a control group of age-matched participants and a control group of young participants. Members of both control groups had never practiced meditation. Our results show that long-term meditation practice leads to a reduction of the attentional blink. Meditation practitioners taken from an older population showed a reduction in blink as compared to a control group taken from a younger population, whereas, the control group age-matched to the meditators’ group revealed a blink that was comparatively larger and broader. Our results support the hypothesis that meditation practice can: (i) alter the efficiency with which attentional resources are distributed and (ii) help to overcome age-related attentional deficits in the temporal domain.     

Social-comparative feedback affects motor skill learning

This study examined motivational effects of feedback on motor learning. Specifically, we investigated the influence of social-comparative feedback on the learning of a balance task (stabilometer). In addition to veridical feedback (error scores reflecting deviation from the target horizontal platform position) about their own performance after each trial, two groups received false normative information about the “average” score of others on that trial. Average performance scores indicated that the participant's performance was either above (better group) or below (worse group) the average, respectively. A control group received veridical feedback about trial performance without normative feedback. Learning as a function of social-comparative feedback was determined in a retention test without feedback, performed on a third day following two days of practice. Normative feedback affected the learning of the balance task: The better group demonstrated more effective balance performance than both the worse and control groups on the retention test. Furthermore, high-frequency/low-amplitude balance adjustments, indicative of more automatic control of movement, were greater in the better than in the worse group. The control group exhibited more limited learning and less automaticity than both the better and the worse groups. The findings indicate that positive normative feedback had a facilitatory effect on motor learning.     

Informational and motivational components of social reinforcement

Thirty-six four-year-old children of each sex were tested in a two-choice marble dropping task. There were three Ss in each cell of a 3 × 2 × 2 × 2 factorial design. The factors investigated were: reinforcement condition (Contingent, Yoked, Nonreinforcement), sex, base preference level (strong vs weak), Base Rate Level (high vs low). The dependent variables were: base preference ratio, base rate, preference ratio change, rate change. The contingently reinforced Ss had significantly higher preference change scores than Ss in the other two reinforcement conditions but only at the high base preference level. The Ss in both the contingent and yoked groups had higher rate change scores than Ss in the nonreinforcement group. The results were interpreted as indicating social reinforcement may have two effects, one a cue function and the other an effect on S's motivational system. The results indicate that regression effects do not operate in the two-choice task and that crossing baseline levels of performance is an effective way to control baseline differences in analyses of change in the two-choice task.     

Meditation and flexibility of visual perception and verbal problem solving

This study investigates the effects of the regular practice of the Transcendental Meditation (TM) technique on habitual patterns of visual perception and verbal problem solving. The study’s predictions were expressed in the context of Norman’s model, which suggests that meditation reduces conceptually driven processes. It was specifically hypothesized that the TM technique involves a reduction of habitual patterns of perceptual and conceptual activation, resulting in (1) more effective application of schemata to new information and (2) less distracting mental activity during performance. This was predicted to result in improved task performance on task conditions in which either (1) habitual patterns of performance hinder or do not aid performance or (2) habitual patterns aid performance. Subjects began the TM technique, relaxed, or added nothing to their daily schedule for 2-week periods. In addition to generalized effects of the interventions, the immediate effects of the TM technique, relaxation, and reading were compared on a letter perception task. The general hypothesis was supported for tasks of tachistoscopic identification of card and letter-sequence stimuli, but not for the verbal problem solving task of anagram solution.     

Switching tasks and attention policies

The determinants and costs of control were studied in 6 experiments examining the performance costs of changing stimulus dimension (digit value/number of elements) or attention strategies (speed/accuracy) on the first trial after task transition. Costs were compared for task shift and reconsideration only. Preparation ability was studied by presenting all transition information at the beginning of a 2-part block or only prior to each part. Results showed pronounced first-trial transition costs. Different factors were associated with stop-start and task-switching requirements. Transition costs were separate from those of basic task performance. Costs were sensitive to global control considerations and were larger for task dimension changes than for attention strategy shifts. Costs involving task dimension change, but not strategy shifts, were reduced with advanced preparation. These results are discussed in relation to contemporary models of control. A new distinction is proposed between activation and execution of control strategies.     

How am I doing? Performance feedback mitigates the effects of mental fatigue on endurance exercise performance

Mental fatigue induced by an earlier cognitive task can impair performance on a subsequent physical task. The current study investigated whether such performance impairment could be mitigated by performance feedback. In an experimental sequential-task design, 63 sport science students completed a series of three tasks: 5-min physical (pre-test), 20-min cognitive, 5-min physical (post-test). Participants were randomly allocated to one of three groups: feedback (n = 23), no feedback (n = 20), control (n = 20). The physical tasks, which assessed force production during a self-paced rhythmic handgrip task as a measure of physical endurance performance, were performed with (feedback group) or without (no feedback group, control group) visual performance feedback. The cognitive tasks involved either completing a 2-back memory task to induce mental fatigue (feedback and no feedback groups) or watching a didactic film (control group). Self-report measures (fatigue, exertion, vigor, motivation) were collected throughout. The 2-back cognitive task increased mental fatigue, mental exertion and general fatigue in the feedback and no feedback groups compared to the control group. Relative to the pre-test physical task, post-test endurance performance declined in the no feedback group (−14.4%) but did not change in the control (−2.6%) and feedback (−2.4%) groups. This mitigation of performance effect was not accompanied by parallel changes in fatigue, exertion, vigor, or motivation. In conclusion, visual performance feedback mitigates the negative effects of mental fatigue on physical endurance performance.     

Performance variability is related to change in cognition: evidence from the Victoria Longitudinal Study

Performance variability across repeated task administrations may be an important indicator of age-related cognitive functioning. In the present investigation, the authors examined whether age differences and change in inconsistency were related to 6-year (3 occasion) cognitive change. Inconsistency scores were computed from 4 reaction time tasks performed by 446 older adults (54-89 years). Replicating previous cross-sectional results, greater inconsistency was observed for older participants even after controlling for differences in response speed. New longitudinal results demonstrated (a) associations between inconsistency at baseline measurement and 6-year change in cognitive performance; (b) longitudinal change in inconsistency; and (c) intraindividual covariation between 6-year change in inconsistency and 6-year change in level of cognitive function. These findings support the view that performance variability serves as a marker of cognitive aging.     

Affective and cognitive characteristics of depression in 10- and 11-year-old children

Indices of emotion experiences, attribution style, and intellectual performance were regressed on an index of childhood depression. The results indicated that the depressed children were like depressed adults in that they reported experiencing a pattern of emotions including sadness, anger, self-directed hostility, and shame, and they tended to explain negative events in terms of internal, stable, and global causes. The similarity between depressed children and depressed adults on these measures was greater for girls than for boys. Depression was not related to performance on a verbal task, but depressed girls performed worse than nondepressed girls on a block design task. The measures of emotion experiences accounted for 78.1% and 46.1% of the variance in girls' and boys' depression scores, respectively, after the variance accounted for by attribution style was partialed out.     

Emotion recognition in schizophrenia: further investigation of generalized versus specific deficit models

In this study, the authors examined the nature of emotion perception in schizophrenia. Two samples of people with schizophrenia, one receiving acute care for a recent exacerbation of symptoms and the other receiving extended care, were compared with a nonclinical control group on emotion perception and general perception measures. The nonclinical control group obtained the highest scores on all of the study measures, and the acutely ill group obtained the lowest scores. Furthermore, the acutely ill sample had a specific deficit in emotion perception that remained present after controlling for performance on the general perception tasks. Conversely, the deficits in emotion discrimination in the extended-care sample reflected generalized poor performance. Differences in performance on the emotion identification task between the 2 clinical groups were reduced when controlling for active symptoms.