Franco
Jedi Master
http://news.sciencemag.org/sciencenow/2008/10/14-04.html
When it comes to cigarettes, schizophrenics just can't seem to get enough. They're two to three times more likely to smoke than the general population, and patients have been known to puff through up to four packs a day. New research on mice may explain this behavior: Nicotine spurs the production of a key neural protein that's scarce in schizophrenics--and that may help relieve their symptoms.
The 100 billion neurons in our brains are continually signaling one another. These impulses are like cars zooming through a city without traffic lights to deliver a message--they would pile up and the messages would get garbled. To keep neural signal traffic flowing, the brain uses certain neurotransmitters as stoplights to prevent neurons from firing out of turn. Reduced levels of one such neurotransmitter, called gamma-aminobutyric acid (GABA), characterizes the brains of schizophrenia patients. Researchers think that without the stoplight effect of GABA, signals in the schizophrenic brain overlap and get jumbled in a sort of neural traffic jam, resulting in hallucinations, disorganized thinking, and anxiety.
When it comes to cigarettes, schizophrenics just can't seem to get enough. They're two to three times more likely to smoke than the general population, and patients have been known to puff through up to four packs a day. New research on mice may explain this behavior: Nicotine spurs the production of a key neural protein that's scarce in schizophrenics--and that may help relieve their symptoms.
The 100 billion neurons in our brains are continually signaling one another. These impulses are like cars zooming through a city without traffic lights to deliver a message--they would pile up and the messages would get garbled. To keep neural signal traffic flowing, the brain uses certain neurotransmitters as stoplights to prevent neurons from firing out of turn. Reduced levels of one such neurotransmitter, called gamma-aminobutyric acid (GABA), characterizes the brains of schizophrenia patients. Researchers think that without the stoplight effect of GABA, signals in the schizophrenic brain overlap and get jumbled in a sort of neural traffic jam, resulting in hallucinations, disorganized thinking, and anxiety.
