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"Research suggests elevation of pineal function during meditation"
"Increased serotonin, combined with lateral
hypothalamic innervation of the pineal gland, may lead
the latter to increase production of the neurohormone
melatonin (MT) from the conversion of 5-HT (72). Melatonin
has been shown to depress the central nervous
system and reduce pain sensitivity (73). During meditation,
blood plasma MT has been found to increase
sharply (74),Under
circumstances of heightened activation, pineal enzymes
can also endogenously synthesize the powerful hallucinogen
5-methoxy-dimethyltryptamine (DMT) (76). Several
studies have linked DMT to a variety of mystical
states, including out-of-body experiences, distortion of
time and space, and interaction with supernatural entities
(77,78). Hyperstimulation of the pineal at this step,
then, could also lead to DMT production that could be
associated with the wide variety of mystical-type experiences
associated with that hallucinogen."
The neural basis of the complex
mental task of meditation:
neurotransmitter and neurochemical
considerations
A. B. Newberg,1 J. Iversen2
1University of Pennsylvania, Philadelphia, PA, USA; 2Stanford University, Stanford, CA 94309, USA
Flera studier visar att melatoninhalten påverkas av yoga troligen för att blodcirkulationen till tallkottskörteln ökar vid yoga och meditation. Mekanismen är dock oklar. (Seithikurippu 2008).
Yogaträning inkluderar ofta inversioner och det finns studier som tyder på att dessa kanske kan påverka tallkottkörteln. Yoga kan i så fall vara ett komplement till medicinsk behandling för patienter med låg melatoninhalt (Stevens 1993, Bartsch 1985, Tamarkin 1982)
"The pineal gland and the hypothalamus showed positive activation during the first and second stages of this meditation. The BOLD (blood oxygenation level dependent) signal changes had also been found
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
"By applying the ancient paradigm of yoga psychology to this subject, new understandings of the syndrome emerge regarding the possible role of the pineal gland, the clinical presentation of the syndrome, and the possible mechanism of action of phototherapy."
Seasonal Affective Disorder and the yoga paradigm: A reconsideration of the role of the pineal gland
Medical Hypotheses
Volume 33, Issue 3, November 1990, Pages 155–158
"These effects of yogic practices appear to be mediated through an interaction between the autonomic nervous system and endocrine system,
wherein pineal secretion of melatonin may be playing an
important role. Melatonin is known not only to synchronize
the organism to changing day and night cycle but has been
also demonstrated to cause sleep-induced relaxation (James
et al., 1987; Waldhauser et al. 1990)"
"The increase in melatonin secretion
after the yogic practices may either be caused by increased
secretion of hormone by the pineal gland or
decreased clearance from the circulation. Walton et al.
(1995), have reported that yogic practices increase serotonin,
which in turn might be acting as a precursor for increasing
melatonin synthesis during yogic practices. Our observations
on increase in nighttime melatonin after yoga and meditation
are in consonance with the findings of Tooley et al.
(2000) who have also reported an increase in melatonin following
meditation"
Effects of Hatha Yoga and Omkar Meditation on Cardiorespiratory Performance, Psychologic Profile, and Melatonin Secretion Kasiganesan Harinath, Anand Sawarup Malhotra, Karan Pal, Rajendra Prasad, Rajesh Kumar, Trilok Chand Kain, Lajpat Rai, and Ramesh Chand Sawhney. The Journal of Alternative and Complementary Medicine. April 2004, 10(2): 261-268.
Published in Volume: 10 Issue 2: July 5, 2004