Nutrition and Cancer
Information on schizophrenia, drugs, pharmaceuticals, psychiatric research, PHRMA watch, abuse of homeless.
There is no tyranny so great as that which is practiced for the benefit of the victim. - C.S. Lewis
No idea is so antiquated that it was not once modern; no idea is so modern that it will not someday be antiquated.- Ellen Glasgow
A New State of Mind
The importance of dopamine was discovered by accident. In 1954 James Olds and Peter Milner, two neuroscientists at McGill University, decided to implant an electrode deep into the center of a rat's brain. The precise placement of the electrode was largely happenstance: At the time the geography of the mind remained a mystery. But Olds and Milner got lucky. They inserted the needle right next to the nucleus accumbens (NAcc), a part of the brain dense with dopamine neurons and involved with the processing of pleasurable rewards, like food and sex.
Olds and Milner quickly discovered that too much pleasure can be fatal. After they ran a small current into the wire, so that the NAcc was continually excited, the scientists noticed that the rodents lost interest in everything else. They stopped eating and drinking. All courtship behavior ceased. The rats would just cower in the corner of their cage, transfixed by their bliss. Within days all of the animals had perished. They had died of thirst.
It took several decades of painstaking research, but neuroscientists eventually discovered that the rats were suffering from an excess of dopamine. The stimulation of the brain triggered a massive release of the neurotransmitter, which overwhelmed the rodents with ecstasy. In humans addictive drugs work the same way: A crack addict who has just gotten a fix is no different from a rat in electrical rapture. This, then, became the dopaminergic cliché — it was the chemical explanation for sex, drugs, and rock 'n' roll.
But that view of the neurotransmitter was vastly oversimplified. What wasn't yet clear was that dopamine is also a profoundly important source of information. It doesn't merely let us take pleasure in the world; it allows us to understand the world.
I am cleaning out some files on my computer and sticking them on my blogs and this was interesting but I don't know where it came from:
Sketching a fuller picture of Thomas Edison than the usual sanitized version, Gardner sums up his appraisal of the national hero by stating that his "beliefs and habits were those of a crackpot and a bum. Rats lived happy and undisturbed in his laboratory; he often slept in his clothes, because he believed that changing or taking them off induced insomnia; he thought that Richard Wagner was Jewish; he was a disastrous husband and father; he all but starved himself to death because he believed that food poisons the intestines; his own company in Europe coined the cable name 'Dungyard' for him."
A baby born in the hospital weighed ten pounds.
He who fights against monsters must beware lest he become one himself - Nietzsche
Teaching Old Drugs New Tricks