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Concept
Effects of meditation
Résumé
The psychological and physiological effects of meditation have been studied. In recent years, studies of meditation have increasingly involved the use of modern instruments, such as fMRI and EEG, which are able to observe brain physiology and neural activity in living subjects, either during the act of meditation itself or before and after meditation. Correlations can thus be established between meditative practices and brain structure or function.
Since the 1950s hundreds of studies on meditation have been conducted, but many of the early studies were flawed and thus yielded unreliable results. Contemporary studies have attempted to address many of these flaws with the hope of guiding current research into a more fruitful path. In 2013, researchers found moderate evidence that meditation can reduce anxiety, depression, and pain, but no evidence that it is more effective than active treatments such as drugs or exercise. Another major review article also cautioned about possible misinformation and misinterpretation of data related to the subject.
A previous study commissioned by the US Agency for Healthcare Research and Quality found that meditation interventions reduce multiple negative dimensions of psychological stress. Other systematic reviews and meta-analyses show that mindfulness meditation has several mental health benefits such as bringing about reductions in depression symptoms, improvements in mood, stress-resilience and attentional control. Mindfulness interventions also appear to be a promising intervention for managing depression in youth.
Mindfulness meditation is useful for managing stress, anxiety and also appears to be effective in treating substance use disorders.
A recent meta analysis by Hilton et al. (2016) including 30 randomized controlled trials found high quality evidence for improvement in depressive symptoms.
Other review studies have shown that mindfulness meditation can enhance the psychological functioning of breast cancer survivors, is effective for people with eating disorders and may also be effective in treating psychosis.
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