Examining the Protective Effects of Mindfulness Training on Working Memory Capacity and Affective Experience
Examining the Protective Effects of Mindfulness Training on Working Memory Capacity and Affective Experience
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DOI：
10.1037/a0018438
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发表时间：
2010-02-01
期刊：
影响因子：
4.2
通讯作者：
Gelfand, Lois
中科院分区：
文献类型：
--
作者：
Jha, Amishi P.;Stanley, Elizabeth A.;Gelfand, Lois
研究了正念训练对工作记忆容量和情感体验的影响。WMC用于管理认知需求和调节情绪。呢持续和密集的需求，如在高压力间隔期间经历的需求，可能会耗尽WMC并导致认知障碍和情绪障碍。我们假设MT可以通过支持WMC来减轻这些有害影响。我们招募了2个军事队列在高应力部署前的间隔，并提供MT到I（MT，n = 31），而不是另一组（军事对照组，MC，n = 17）。MT组参加了为期8周的MT课程，并记录了用于练习正式MT练习的课外时间。操作跨度任务被用来索引WMC在2个测试会议之前和之后的MT课程。尽管WMC在平民中随时间推移保持稳定（n = 12），但在MC组中发生了降解。在MT组中，WMC随着时间的推移在MT练习时间较短的人中下降，但在练习时间较长的人中增加。更高的MT练习时间也对应着更低水平的负面影响和更高水平的正面影响（由正面和负面影响时间表索引）。练习时间和消极的，但不是积极的，影响之间的关系是介导的WMC，表明MT相关的改善WMC可能支持一些，但不是所有的MT的有益效果。尽管如此。这些发现表明，足够的MT实践可以防止与高压力环境相关的功能损伤。
We investigated the impact of mindfulness training (MT) on working memory capacity (WMC) and affective experience. WMC is used in managing cognitive demands and regulating emotions. Yet. persistent and intensive demands, such as those experienced during high-stress intervals, may deplete WMC and lead to cognitive failures and emotional disturbances. We hypothesized that MT may mitigate these deleterious effects by bolstering WMC. We recruited 2 military cohorts during the high-stress predeployment interval and provided MT to I (MT, n = 31) but not the other group (military control group, MC, n = 17). The MT group attended an 8-week MT Course and logged the amount of out-of-class time spent practicing formal MT exercises. The operation span task was used to index WMC at 2 testing sessions before and after the MT course. Although WMC remained stable over time in civilians (n = 12), it degraded in the MC group. In the MT group, WMC decreased over time in those with low MT practice time, but increased in those with high practice time. Higher MT practice time also corresponded to lower levels of negative affect and higher levels of positive affect (indexed by the Positive and Negative Affect Schedule). The relationship between practice time and negative, but not positive, affect was mediated by WMC, indicating that MT-related improvements in WMC may support some but not all of MT's salutary effects. Nonetheless. these findings suggest that sufficient MT practice may protect against functional impairments associated with high-stress contexts.