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81.
Ravi Prakash Priyanka Rastogi Indu Dubey Priyadarshee Abhishek Suprakash Chaudhury Brent J. Small 《Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition》2013,20(4):479-494
ABSTRACT Background: The general consensus that cognitive abilities decline with advancing age is supported by several studies that have reported that older adults perform more poorly on multiple tests of cognitive performance as compared to younger adults. To date, preventive measures against this cognitive decline have been mainly focused on dietary, physical, and lifestyle behaviors which could allow older adults to maintain their cognitive abilities into late life. However, much less stress has been laid on evaluating meditation as a preventive measure in such cases in spite of the fact that the role of meditation on attention has been proved in several studies. In the current study, we extend this preliminary idea, examining the practice of concentrative meditation and the differences in the cognitive performance of older adults who have or have not employed this practice long term. Methodology: This was a cross-sectional study comparing the cognitive performance of meditators and non-meditators in the geriatric age group. Twenty (age > 55 years) long-term practitioners of Vihangam Yoga meditation (>10 years of practice) were recruited in the present study and were applied six paper–pencil neuropsychological tests for assessment of short-term memory, perceptual speed, attention, and executive functioning. The tests used were: (1) the Digit Span test, (2) the Stroop Color Word test, (3) the Trailmaking test, (4) the Letter Cancellation Task, (5) the digit symbol substitution test, and (6) the Rule Shift Card Test. All the tests were also applied to 20 age- and education-matched geriatric adults who have not practiced the meditation technique. Results: Vihangam Yogis showed significantly better performances in all these tests of attention (p < .05) except for the digit backward test, where a trend (p = .08) was found in favor of meditators. Conclusion: Long-term Vihangam Yoga meditators have superior cognitive abilities than non-meditators in the old age group. This technique should be studied further for its ability to prevent age-related cognitive decline. 相似文献
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Older adults often perform poorly on Theory of Mind (ToM) tests that require understanding of others’ beliefs and intentions. The course and specificity of age changes in belief reasoning across the adult lifespan is unclear, as is the cause of the age effects. Cognitive and neuropsychological models predict that two types of processing might influence age differences in belief reasoning: executive functioning and social cue detection. In the current study we assessed 129 adults aged between 18 and 86 on novel measures of ToM (video clips and verbal vignettes), which manipulated whether true or false belief reasoning was required. On both video and verbal tasks, older adults (aged 65–88) had specific impairments in false belief reasoning, but showed no such problem in performing true belief tasks. Middle-aged adults (aged 40–64) generally performed as well as the younger adults (aged 18–39). Difficulties in updating information in working memory (but not inhibitory problems) partially mediated the age differences in false belief reasoning. Also, the ability to decode biological motion, indexing social cue detection, partially mediated age-related variance in the ability to interpret false beliefs. These results indicate that age differences in decoding social cues and updating information in memory may be important influences on the specific problems encountered when reasoning about false beliefs in old age. 相似文献
85.
Do children and adults use the same cues to judge whether someone is a reliable source of information? In 4 experiments, we investigated whether children (ages 5 and 6) and adults used information regarding accuracy, confidence, and calibration (i.e., how well an informant's confidence predicts the likelihood of being correct) to judge informants' credibility. We found that both children and adults used information about confidence and accuracy to judge credibility; however, only adults used information about informants' calibration. Adults discredited informants who exhibited poor calibration, but children did not. Requiring adult participants to complete a secondary task while evaluating informants' credibility impaired their ability to make use of calibration information. Thus, children and adults may differ in how they infer credibility because of the cognitive demands of using calibration. 相似文献
86.
Gervais WM 《Personality & social psychology bulletin》2011,37(4):543-556
Although prejudice is typically positively related to relative outgroup size, four studies found converging evidence that perceived atheist prevalence reduces anti-atheist prejudice. Study 1 demonstrated that anti-atheist prejudice among religious believers is reduced in countries in which atheists are especially prevalent. Study 2 demonstrated that perceived atheist prevalence is negatively associated with anti-atheist prejudice. Study 3 demonstrated a causal relationship: Reminders of atheist prevalence reduced explicit distrust of atheists. These results appeared distinct from intergroup contact effects. Study 4 demonstrated that prevalence information decreased implicit atheist distrust. The latter two experiments provide the first evidence that mere prevalence information can reduce prejudice against any outgroup. These findings offer insights about anti-atheist prejudice, a poorly understood phenomenon. Furthermore, they suggest both novel directions for future prejudice research and potential interventions that could reduce a variety of prejudices. 相似文献
87.
Lisa Legault Kayla Ray Amy Hudgins Marissa Pelosi Will Shannon 《Motivation and emotion》2017,41(1):1-21
We investigate the possibility of two distinct approaches to autonomy satisfaction—one that is contextually “assisted” and one that is individually “asserted”. Exploratory and confirmatory factor analyses (Pilot Study and Study 1; N = 449) develop and validate the two-factor structure. We then show that asserted and assisted autonomy orientations predict psychological wellbeing through distinct pathways (i.e., highly active/agentic vs. interdependent). In Study 2 (N = 206), we examine the sociodevelopmental antecedents of each type of autonomy satisfaction, revealing that assisted autonomy is associated with having had authoritiative parents, whereas asserted autonomy is associated with having had authoritarian parents. In Study 3 (N = 109) we show that asserted—but not assisted—autonomy predicts the integration of negative life experiences. Finally, in Study 4 (N = 202), we examine the degree to which assisted and asserted autonomy moderate responses to conflict in need-thwarting contexts, showing that assisted autonomy predicts an acquiescent coping style, whereas asserted autonomy predicts an assertive negotiation style. 相似文献
88.
Kimberly O'Leary Brent J. Small Vanessa Panaite Lauren M. Bylsma 《Cognition & emotion》2017,31(3):435-443
Disordered sleep has been linked to impaired emotional functioning in healthy and depressed individuals. Little is known, however, about how chronic sleep problems influence emotional reactivity in everyday life. Participants with major or minor unipolar depressive disorder (n?=?60) and healthy controls (n?=?35) reported on sleep and emotional responses to daily life events using a computerised Experience Sampling Method. We examined whether impaired sleep quality influenced emotional reactivity to daily events, and if this relationship was altered by unipolar mood disorders. Among healthy individuals, sleep difficulties were associated with enhanced negative affect (NA) to unpleasant events and a dulled response to neutral events. However, among mood-disordered persons, sleep difficulties were associated with higher NA across all types of everyday life events. Impaired sleep quality differentially affects daily life emotional reactions as a function of depression. 相似文献
89.
Derek R. Hopko C. W. Lejuez Stacey B. Daughters Will M. Aklin Amanda Osborne Burnetta L. Simmons David R. Strong 《Journal of psychopathology and behavioral assessment》2006,28(2):95-101
In a program of research assessing the validity of the balloon analogue risk task (BART; C. W. Lejuez et al., 2002) as a measure
of risk taking, the BART was administered to a sample of inner-city drug users in residential treatment (n = 76). Construct validity of the BART was evaluated by measuring risk-taking behavior and 3,4-methylenedioxymethamphetamine
(MDMA) use while controlling for self-reported impulsivity, sensation seeking, polysubstance use, and demographic variables.
Supporting the construct validity of the BART, while controlling for interrelated variables in the context of logistic regression
analyses, (BART) risk-taking propensity accounted for significant incremental variance in differentiating MDMA users from
non-users. BART scores, polysubstance use, and younger age were most associated with MDMA use, and together these variables
were associated with 91% classification accuracy in predicting MDMA use. 相似文献
90.
Will C. van den Hoonaard 《Journal of Academic Ethics》2006,4(1-4):261-274
This articles considers the larger, external and the micro, internal forces that impinge on the nature and impact of contemporary research-ethics codes. The larger forces that shape the impact of codes involve the increase in public and governmental concern with privacy protection, changes within disciplines, and the rise of research entrepreneurship. In terms of micro-level forces, the article explores the continuing problems associated with the bio-medical approach to research-ethics, on-going instability for some types of social research, slippages between REBs and researchers, and variability of local interpretations of ethics codes. A number of ethics-review fads also produce instability in the ethics regime. 相似文献