Eideard

Sith gun robh so…

Posts Tagged ‘Syracuse University

Falling in love takes about a fifth of a second

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A new meta-analysis study conducted by Syracuse University Professor Stephanie Ortigue is getting attention around the world. The groundbreaking study, “The Neuroimaging of Love,” reveals falling in love can elicit not only the same euphoric feeling as using cocaine, but also affects intellectual areas of the brain. Researchers also found falling in love only takes about a fifth of a second…

Results from Ortigue’s team revealed when a person falls in love, 12 areas of the brain work in tandem to release euphoria-inducing chemicals such as dopamine, oxytocin, adrenaline and vasopression. The love feeling also affects sophisticated cognitive functions, such as mental representation, metaphors and body image.

The findings beg the question, “Does the heart fall in love, or the brain?”

“That’s a tricky question always,” says Ortigue. “I would say the brain, but the heart is also related because the complex concept of love is formed by both bottom-up and top-down processes from the brain to the heart and vice versa. For instance, activation in some parts of the brain can generate stimulations to the heart, butterflies in the stomach. Some symptoms we sometimes feel as a manifestation of the heart may sometimes be coming from the brain.”

Other researchers also found blood levels of nerve growth factor, or NGF, also increased. Those levels were significantly higher in couples who had just fallen in love. This molecule involved plays an important role in the social chemistry of humans, or the phenomenon ‘love at first sight.’ “These results confirm love has a scientific basis,” says Ortigue…

RTFA. Fascinating research. Why try to keep romanticism divorced from science?

In fact, the sense of adventure, quest for knowledge, newer and greater understanding of life and living seems to me to be one of the romantic undertakings there could be. Dullards are the ones afraid of real science.

Written by eideard

October 26, 2010 at 2:00 am

‘Glow-in-the-dark’ sperm illuminates reproductive behavior

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Previously unobservable events occurring between insemination and fertilization are the subject of a groundbreaking new article in Science magazine…By genetically altering fruit flies so that the heads of their sperm were fluorescent green or red, John Belote and his colleagues were able to observe in striking detail what happens to live sperm inside the female. The findings may have huge implications for the fields of reproductive biology, sexual selection and speciation.

According to Scott Pitnick, many advances in reproductive and evolutionary biology have been constrained by the inability to discriminate competing sperm of different males and by the challenges of observing live sperm inside the female reproductive tract. The solution? Glow-in-the-dark sperm. “Our first goal with these flies was to tackle the mechanisms underlying sperm competition,” says Pitnick. “Whenever a female mates with more than one male—and female promiscuity is more the rule than the exception in nature—there are conflicts between the sexes over paternity, as well as competition between rival ejaculates to fertilize eggs. Such postcopulatory sexual selection is a powerful force for evolutionary change…”

Pitnick says his team has created similar glowing sperm populations for other species, including ones that hybridize, so he can observe what happens when sperm and the female are evolutionarily mismatched. “I suspect we have just scratched the surface of using this material,” he says.

It boggles the mind. Might also fit into our never-ending quest for entertainment.

Written by eideard

March 20, 2010 at 12:00 pm

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