There is widespread agreement in the literature that meditation reduces sympathetic activation and increases parasympathetic activation of the ANS, that is, it reduces physiological arousal thereby triggering a characteristic spectrum of simultaneous physiological changes: reduced respiratory rate (RR), reduced heart rate (HR), reduced blood pressure (BP), reduced electrodermal activity (EDA)…
Reports such as those described previously call for a deeper examination of meditation’s potential adverse effects. Thorough, systematic surveys post marketing surveillance-style studies need to be conducted, For this to be done properly, meditation instructors and organisations may be required to cooperate by providing comprehensive lists of those who have…
The fact that the mental silence construct, more than any other factor my research, correlated positively with a wide range of health measures raises interesting implications in several areas of study. The findings emanating from my research imply that the notion of mental silence and its associated yogic philosophy, may…
The diversity, and apparent impotence, of many meditative practices makes the construction of sham meditation quite feasible since researchers can develop rationales to justify almost any method that approximates the expectations of trial participants. For instance, Smith’s (1995) RCT compared TM to an imitation exercise designed to closely mimic the…
It may not be practically possible to devise and implement an ideal control method for meditation trials, nevertheless it is important to select a strategy that approximates that ideal. The bare minimum criteria for a control process in meditation research should therefore be: • First, high face validity as a…
This graph shows a comparison of the health of a group of experienced mental silence (Sahaja Yoga) meditators and three other groups including a group of Presbyterian clergy from America, a group of non-mental silence meditators, and the general Australian population. Health was measured using the Short Form 36 survey.…
Examining randomised controlled trials exploring meditation in my review, control methods were presumptively categorized according to their face-validity into low, moderate or high face validity categories. The low face-validity controls used strategies that were: • Passive and unstructured: Participants were involved in minimal or no activity relating to the trial…
The observations of previous randomised controlled trials assessing meditation could lead to three possible conclusions: 1. Meditation is in fact no more effective than other approaches to rest and relaxation. Yet meditative traditions have existed for thousands of years and at least in India, are widely perceived to have specific…
The graph represents the results of a survey conducted on long term Sahaja Yoga meditators. They were asked the question “how often do you achieve thoughtless awareness/ mental silence for a few minutes or more?” Almost half of those surveyed responded that they achieved mental silence “several times per day…
In view of the seriousness of some of the reactions described above it is questionable whether all forms of meditation can be viewed as “generally safe for general consumption”. Moreover, given that recent reviews of meditation have clearly demonstrated a lack of convincing evidence for a specific effect, the importance…
