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While for centuries a wakeful and tranquil state or experience variously called "samadhi," "pure awareness," or "enlightenment" had been said to be a normal experience and the goal of meditation in Vedic, Buddhist, and Taoist traditions, there was little known about this behavior until recently, when the practice of "transcendental meditation" (TM) became(More)
We studied acute plasma cortisol and testosterone concentration changes during the practice known as "transcendental meditation" (TM) and during control rest. Three groups of normal, young adult volunteers were studied: a group of controls, these same controls restudied as practitioners after 3 to 4 months of TM practice, and a group of long-term, regular(More)
Previous blood flow measurements in this laboratory have indicated increased nonrenal nonhepatic blood flow during behaviorally induced rest states, especially during the stylized mental technique of transcendental meditation (TM). We have hypothesized that increased cerebral blood flow (CBF) may account for most of the increased nonrenal nonhepatic blood(More)
Behaviorally induced stress is associated with increased arginine vasopressin (AVP) secretion. In this report we describe a phasic conditioned response of AVP secretion yielding 2.6-7.1 times normal plasma concentration of this hormone in association with a physiological state of decreased activation, that associated with the mental technique of(More)
Marked decline of red cell metabolism has been described during the acute state of decreased activation associated with the stylized mental technique of transcendental meditation (TM) in long-term meditators (5-10 years regular elicitation, TM instructors). It is not known whether unstylized rest is accompanied by a similar effect and it is not known what(More)
Many physiologic changes have been described in association with acute rest states in man. In particular, among metabolic changes, there occur marked decrease of forearm respiratory quotient, increased forearm venous beta-hydroxybutyric acid, decreased forearm lactate generation, and decreased red cell glycolysis. One primary hypothesis of metabolic control(More)
Acute decline of forearm oxygen consumption has been observed during an acute, wakeful behaviorally induced rest/relaxed state. This change of tissue respiration was not associated with variation of rate of forelimb lactate generation. Since forearm blood flow did not change significantly during this behavior, the decline of oxygen consumption by forearm(More)
We studied oxygen consumption, carbon dioxide production and acid/base changes in 62 subjects during two hypometabolic states (35 during transcendental mediation and 27 during unstylized rest). The results indicate that, during these hypometabolic states, arterial-venous CO2 content difference declines, and that during transcendental meditation,(More)
Acute behavioral rest states in man are associated with marked hormonal and metabolic changes. In order to complete a hormonal profile of these states and to identify possible metabolic regulators, we measured thyroid hormones (T3 and T4), thyroid stimulating hormone (TSH), and insulin during the stylized mental practice of "transcendental mediation" (TM)(More)