منابع مشابه
Increased dopamine tone during meditation-induced change of consciousness.
This is the first in vivo demonstration of an association between endogenous neurotransmitter release and conscious experience. Using 11C-raclopride PET we demonstrated increased endogenous dopamine release in the ventral striatum during Yoga Nidra meditation. Yoga Nidra is characterized by a depressed level of desire for action, associated with decreased blood flow in prefrontal, cerebellar an...
متن کاملSmooth Muscle Tone
The objective of this study was to elucidate the mechanisms associated with the reciprocal relation between magnesium and calcium on vascular smooth muscle tone in bovine pulmonary artery and vein. Rapid removal of magnesium from Krebs-bicarbonate medium used to bathe isolated rings of precontracted artery or vein caused transient endotheliumand calciumdependent relaxation and cyclic GMP accumu...
متن کاملAgonist-induced vascular tone.
The cellular mechanisms underlying the agonist-induced sustained contraction of the vascular smooth muscle are reviewed in the light of the use of Ca2+ and the change of Ca2+ sensitivity of the contractile apparatus. It is generally accepted that the main trigger for contraction of vascular smooth muscle is the elevation of intracellular Ca2+ concentration. However, the measurement of intracell...
متن کاملReflex regulation of airway smooth muscle tone.
Autonomic nerves in most mammalian species mediate both contractions and relaxations of airway smooth muscle. Cholinergic-parasympathetic nerves mediate contractions, whereas adrenergic-sympathetic and/or noncholinergic parasympathetic nerves mediate relaxations. Sympathetic-adrenergic innervation of human airway smooth muscle is sparse or nonexistent based on histological analyses and plays li...
متن کاملMandarin Neutral Tone—does it Change Target
It is known that in Mandarin each of the five lexical tones can be assigned with an articulatorily functional target: [high] for tone 1, [rise] for tone 2, [low] for tone 3, [fall] for tone 4 and [mid] for tone 5 (the first four tones are known as full tones while tone 5 is called neutral tone). Given that the targets of full tones can change (e.g., from tone 3 to tone 2) in certain speech cond...
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ژورنال
عنوان ژورنال: European Neurology
سال: 1994
ISSN: 0014-3022,1421-9913
DOI: 10.1159/000117065