Word: reticular
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Scientists have also learned that the old notion that 90% of sex is in the mind is literally true: the parts of the brain involved in sexual response include, at the very least, the sensory vagus nerves, the midbrain reticular formation, the basal ganglia, the anterior insula cortex, the amygdala, the cerebellum and the hypothalamus...
...Reticular formation As the brain's sentry, this structure receives incoming stimuli and puts the brain on alert, ready to respond. Meditating dials back the arousal signal...
...thought to the brain's anatomy since their first year in medical school, the technical jargon was almost as forbidding as to a layman. Crux of the matter: drugs influence mental function mainly through their effects on two parts of the brain: 1) the primitive midbrain's reticular (little network) formation, and 2) the connections between the thalamus (inner chamber) and the outer cortex (bark), the most sophisticated and evolutional-ly the newest part of the brain. Dr. Himwich reported...
...Tranquilizers of the phenothiazine class (notably chlorpromazine and prochlorperazine) reduce the activity of the reticular alertness center and intensify the sleepiness pattern of the thalamocortical fibers...
...Rauwolfia drugs from Indian snakeroot (best known: reserpine) stimulate the reticular alertness center and have little effect on the sleep pattern, are therefore less sedative in action. ¶ Meprobamate, in moderate doses, usually has no effect on the alertness center and little on the sleep pattern; its tranquilizing action must work through other parts of the brain...