Word: hypothalamus
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...progress from early puberty to late adolescence, certain regions of their brains become more active when they face a potential social interaction. Specifically, when an older girl anticipates meeting someone new - someone she believes will be interested in her - her nucleus accumbens (which is associated with reward and motivation), hypothalamus (associated with hormone secretion), hippocampus (associated with social learning) and insula (associated with subjective feelings) all become more active. By contrast, boys in the same situation show no such increase in activity in these areas. In fact, the activity in their insula actually declines. (Read "The Truth About Teen Girls...
...unemployed, "the magnitude of the effect is very small - if the effect does really exist, it will only produce depression in very rare cases, about 5 or 10 out of 1,000." Grabe is now studying genes involved in the function of the "stress axis" of the body (the hypothalamus, pituitary and adrenal glands), since those are known to go haywire during major depression...
...that stand idly by in the midst of an apocalypse; they blatantly attack the emergence of materialistic tendencies even under dire circumstances.While Scholzman seeks to interpret the psychology of why viewers keep watching zombie films, he also gives thought to the neurology of zombies. According to Schlozman, because the hypothalamus stimulates the drive to forage, zombies’ eternal appetite and fleshy diet should be related to a problem with this part of the brain. Those exploding heads probably indicate that the zombies must suffer from a condition that induces severely increased intracranial pressure. And though they make for entertaining...
...Just what these brain differences mean is still not clear. Ever since 1991, when Simon LeVay first documented differences in the hypothalamus of gay and straight men, researchers have been struggling to understand what causes these differences to occur. Until now, the brain regions that scientists have come to believe play a role in sexual orientation have been related to either reproduction or sexuality. The Swedish study, however, is the first to find differences in parts of the brain not normally involved in reproduction - the denser network of nerve connections, for example, was found in the amygdala, known...
...With age, the cells in the hypothalamus become less active. It's a situation that is made worse by the fact that the elderly tend to spend less time outdoors in the sunlight, which increases melatonin production in the pineal gland, causing sleep and mood disturbances. In earlier studies, Van Someren showed that Alzheimer's patients living in homes who preferred darker rooms were the most restless during the night. Combined with this study's findings, he now believes that the inactivity of these biological-clock cells can be reversed...