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Meditation may cause harm too!

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03rd-Nov-2017       
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Life Desk :
Poor methodology and misinformation in accordance with previous studies may mislead and disappoint the consumers. Mindfulness or Meditation techniques should not be oversold to people without caution or condition-specific modifications. Studies of intervention such as mindfulness based stress reduction(MBSR)may not provide valid or reliable evidence. According to the National Institutes of Health's stage model , only 30 percentage of MBIs have progressed past the first stage in clinical research.
No concrete scientific evidence has been provided and the developmental research on the subject seems to be lagging behind the people's widespread use of mindfulness and meditation techniques, discussed a group of 15 experts In an article published In Perspectives on Psychological Science journal.
'Scientific studies are needed to clarify on implementation of mindfulness and meditation techniques; as it may lead to waste of time, money and sometimes even worse needless adverse effects.'
Recent years have seen a huge surge not only in media and scientific articles about mindfulness and meditation, the authors wrote, but also in the implementation of medical interventions for everything from depression to addiction, pain and stress.
The widespread adoption of therapies has put the field at a critical crossroads, the authors argued, where appropriate checks and balances must be implemented.
"Misinformation and poor methodology associated with past studies of mindfulness may lead public consumers to be harmed, misled and disappointed," they wrote.
Co-author Willoughby Britton, an assistant professor of psychiatry and behavior at the Warren Alpert Medical School of Brown University said: "We are sometimes overselling the benefits of mindfulness to pretty much any person who has any condition, without much caution, nuance or condition-specific modifications, instructor training criteria, and basic science around mechanism of action.
The possibility of unsafe or adverse effects has been largely ignored. This situation is not unique to mindfulness, but because of mindfulness's widespread use in mental health, schools and apps, it is not ideal from a public health perspective."
Lead author Nicholas Van Dam, a clinical psychologist and research fellow in psychological sciences at the University of Melbourne in Australia, said that the point of the article is not to disparage mindfulness and meditation practice or research, but to ensure that their applications for enhancing mental and physical health become more reflective of scientific evidence.
So far, such applications have largely been unsupported, according to major reviews of available evidence in 2007 and again in 2014. "The authors think there can be something beneficial about mindfulness and meditation," Van Dam said. "We think these practices might help people. But the rigor that should go along with developing and applying them just isn't there yet. Results from the few large-scale studies that have been conducted so far have proven equivocal at best."
Added co-author David E. Meyer, a professor of psychology at the University of Michigan, "Sometimes, truly promising fields of endeavor get outstripped by efforts to harvest them before they're really ripe; then workers there must step back, pause to take stock, and get a better plan before moving onward."
Future efforts to improve the quality of mindfulness and meditation research will be bolstered by a new research center at Brown University, led by Eric Loucks, an associate professor in the university's School of Public Health
. "The center's mission will be to perform high-quality, methodologically rigorous research about impacts of mindfulness on health, and to offer collaborative, evidence-based resources for hospitals, schools and businesses that are interested in offering mindfulness-based interventions," Loucks said.
A young, undefined field
Among the biggest problems facing the field is that mindfulness is poorly and inconsistently defined both in popular media and the scientific literature.
According to the authors, there "is neither one universally accepted technical definition of 'mindfulness' nor any broad agreement about detailed aspects of the underlying concept to which it refers." As a result, research papers have varied widely in what they actually examine, and often, their focus can be hard to discern.
"Any study that uses the term 'mindfulness' must be scrutinized carefully, ascertaining exactly what type of 'mindfulness' was involved, what sorts of explicit instruction were actually given to participants for directing practice," the authors wrote.
"When formal meditation was used in a study, one ought to consider whether a specifically defined type of mindfulness or other meditation was the target practice."
"Without specific, well-defined terms to describe not only practices but also their effects, studies of interventions such as mindfulness-based stress reduction (MBSR) cannot provide valid and comparable measurements to produce reliable evidence.
" As part of its proposed remedy, the new article offers a "non-exhaustive list of defining features for characterizing contemplative and medication practices."
Greater rigor
Along with specific, precise and standardized definitions, similar improvements in research methodology must also come, the authors wrote.
"Many intervention studies lack or have inactive control groups," Van Dam said. The field also has struggled to achieve consistency in what it is being measured and how to measure those things perceived to be of greatest importance to mindfulness.
Van Dam said the situation is akin to earlier psychological research on intelligence. This concept proved to be too broad and too vague to measure directly.
Ultimately, however, psychologists have made progress by studying the "particular cognitive capacities that, in combination, may make people functionally more or less intelligent," he and his co-authors wrote.
Thus, the authors wrote, "We recommend that future research on mindfulness aim to produce a body of work for describing and explaining what biological, emotional, cognitive, behavioral and social, as well as other such mental and physical functions, change with mindfulness training."
Clinical care
A wide variety of contemplative practices have been studied for an even larger variety of purposes, yet in both basic and clinical studies of mindfulness and meditation, researchers have rarely advanced to the stage where they can confidently conclude whether particular effects or specific benefits resulted directly from the practice.
Measured by the National Institutes of Health's stage model for clinical research, only 30 percent of mindfulness-based interventions (MBIs) have moved past the first stage, and only 9 percent have tested efficacy in a research clinic against an active control.
"Given the absence of scientific rigor in much clinical mindfulness research, evidence for use of MBIs in clinical contexts should be considered preliminary.," the authors wrote.
The proposed agenda for future research is rigorous and extensive, Van Dam said. "Replication of earlier studies with appropriately randomized designs and proper active control groups will be absolutely critical," the authors continued. "In conducting this work, we recommend that researchers provide explicit detail of mindfulness measures, primary outcome measures, mindfulness/meditation practices and intervention protocol."
Researchers and care providers involved with delivering MBIs have begun to become more vigilant about possible adverse effects, the authors wrote, but more needs to be done. As of 2015, fewer than 25 percent of meditation trials actively monitored for negative or challenging experiences.
Contemplating contemplative neuroscience
Van Dam said recent efforts to assess the neural correlates of mindfulness and meditation with technologies, such as magnetic resonance imaging (MRI) and magnetoencephalography, may perhaps have the potential to bring new rigor to the field.
Nonetheless, he and his co-authors also express concern in the article that these technologies so far have not fulfilled this potential.
The authors note that technologies such as MRI depend on subjects remaining physically still while being tested, and image quality can be affected by subjects' rate of breathing.
Experienced meditators may be better suited to maintaining ideal physiological states for MRI studies than are inexperienced individuals or non-meditators.
Due to such problematic factors, between-group differences in brain scans might have little to do with the mental state researchers are attempting to measure and much to do with head motion and/or breathing differences.
"Contemplative neuroscience has often led to overly simplistic interpretations of nuanced neurocognitive and affective phenomena," the authors wrote. "As a result of such oversimplifications, meditative benefits may be exaggerated and undue societal urgency to undertake mindfulness practices may be encouraged." .
Ultimately that's the authors' shared concern: Insufficient research may mislead people to think that the vague brands of "mindfulness" and "meditation" are broad-based panaceas when in fact refined interventions may only be helpful for particular people in specific circumstances. .
More, and much better, scientific studies are needed to clarify these matters. Otherwise people may waste time and money, or worse, suffer needless adverse effects.
"This paper is a coordinated effort among concerned mindfulness researchers and meditation scholars to rectify this gap to maximize benefit and minimize harm from MBIs," Britton said.
Source: Eurekalert

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