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A 15O‐H2O PET study of meditation and the resting state of normal consciousness
TLDR
It is concluded that the H215O PET method may measure CBF distribution in the meditative state as well as during the resting state of normal consciousness, and that characteristic patterns of neural activity support each state. Expand
Persistent Resetting of the Cerebral Oxygen/Glucose Uptake Ratio by Brain Activation: Evidence Obtained with the Kety—Schmidt Technique
TLDR
Measurements confirm earlier reports that brain activation can induce resetting of the cerebral oxygen/glucose consumption ratio, and indicate that the resetting persists for a long period after cerebral activation has been terminated and physiologic stress indicators returned to baseline values. Expand
Middle cerebral artery blood velocity and cerebral blood flow and O2 uptake during dynamic exercise.
TLDR
The Kety-Schmidt technique was applied to measure the global average levels of CBF and cerebral metabolic rate of oxygen (CMRO2) during rest and dynamic exercise and found that the exercise-induced increase in MCA Vmean is not a reflection of a proportional increase in CBF. Expand
Predictive value of Müller maneuver, cephalometry and clinical features for the outcome of uvulopalatopharyngoplasty. Evaluation of predictive factors using discriminant analysis in 30 sleep apnea
TLDR
Lowered position of the hyoid bone, increased cranio-cervical angle and shortening of the maxilla length were significantly associated with poor results of UPPP, as were overweight, narrowing of the hypopharynx, the severity of sleep apnea, and hypersomnia, but in a discriminant analysis containing all these variables, the three cephalometric measurements were most closely associated with the outcome of U PPP. Expand
Cerebral O2 metabolism and cerebral blood flow in humans during deep and rapid-eye-movement sleep.
TLDR
A deep-sleep-associated statistically highly significant 25% decrease in CMRO2 is found, a magnitude of depression according with studies of glucose uptake and reaching levels otherwise associated with light anesthesia. Expand
Human Regional Cerebral Blood Flow during Rapid-Eye-Movement Sleep
TLDR
The CBF increase in the associative visual area suggests that activation of cerebral structures processing complex visual material is correlated to visual dream experiences, and the reduced involvement of the inferior frontal cortex observed during REM sleep might explain the poor temporal organization and bizarreness often experienced in dreams. Expand
Airway dimensions and head posture in obstructive sleep apnoea.
TLDR
A compensatory physiological postural mechanism that serves to maintain airway adequacy in OSA patients in the awake erect posture is considered, most efficiently so at the lowest levels of the oropharyngeal airway. Expand
Late postoperative nocturnal episodic hypoxaemia and associated sleep pattern.
TLDR
It is concluded that postoperative sleep pattern is disturbed severely with early depression of REM and slow wave sleep and with rebound of REM sleep on the second and third nights. Expand
Cerebral oxygen metabolism and cerebral blood flow in man during light sleep (stage 2)
TLDR
The results suggest that during non-rapid eye movement sleep cerebral metabolism and thereby cerebral synaptic activity is correlated to cerebral readiness rather than to mental activity. Expand
Nocturnal temperature in affective disorder.
TLDR
The temperature rhythms of 9 drug-free patients with primary affective disorder were measured during depression and after recovery and compared with those of 12 normal controls and showed no evidence that the temperature minimum occurred earlier in the night in depression compared to controls. Expand
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