Word: ventrals
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...does the act mean? Is it a one-off, or the start of a gorilla sexual revolution? Breuer is hesitant to draw any conclusions, noting that scientists observe just a sliver of the life of wild gorillas, but he speculates that face-to-face mating (also known as "ventro-ventral copulation," for the Latinists out there) might engender a deeper relationship between the silverback male, George, and Leah, the female. After the mating was finished (roughly 2 mins., about par for the course for your average silverback), Breuer even observed George holding Leah's hand. Apparently, even the world...
...true-love thrill hits, and studies of the brain with functional magnetic resonance imagers (fMRIs) show why it feels so good. The earliest fMRIs of brains in love were taken in 2000, and they revealed that the sensation of romance is processed in three areas. The first is the ventral tegmental, a clump of tissue in the brain's lower regions, which is the body's central refinery for dopamine. Dopamine does a lot of jobs, but the thing we notice most is that it regulates reward. When you win a hand of poker, it's a dopamine jolt that...
Fisher and her colleagues have conducted recent fMRI scans of people who are not just in love but newly in love and have found that their ventral tegmental areas are working particularly hard. "This little factory near the base of the brain is sending dopamine to higher regions," she says. "It creates craving, motivation, goal-oriented behavior--and ecstasy...
Even with its intoxicating supply of dopamine, the ventral tegmental couldn't do the love job on its own. Most people eventually do leave the poker game or the dinner table, after all. Something has to turn the exhilaration of a new partner into what can approach an obsession, and that something is the brain's nucleus accumbens, located slightly higher and farther forward than the ventral tegmental. Thrill signals that start in the lower brain are processed in the nucleus accumbens via not just dopamine but also serotonin and, importantly, oxytocin. If ever there was a substance designed...
...When Love Becomes a HabitEven with its intoxicating supply of dopamine, the ventral tegmental couldn't do the love job on its own. Most people eventually do leave the poker game or the dinner table, after all. Something has to turn the exhilaration of a new partner into what can approach an obsession, and that something is the brain's nucleus accumbens, located slightly higher and farther forward than the ventral tegmental. Thrill signals that start in the lower brain are processed in the nucleus accumbens via not just dopamine but also serotonin and, importantly, oxytocin. If ever there...