I posted this question here because I suspect that the active readers in this section are well aware of biochemical reactions in the human body. A while ago I was interested in the process of pupil dilatation... I would really like to know how and why it happens.
I tried to look up some things myself and I found the information below on wikipedia, but I don't think it's very reliable. The process must be much more sophisticated. Would someone be so kind to clear things up for me please?
"In addition, MDMA has a partial affinity for blocking the reuptake of dopamine and a smaller affinity still for blocking that of norepinephrine as well as other neurotransmitters in smaller quantities. The former two neurotransmitters, amongst others which may also be released in small amounts, are responsible for increased energy and contribute to the "speedy" feeling of the drug experience, whereas serotonin contributes primarily to feelings of well-being, euphoria, and decreased hostility." link
"Noradrenaline, the neurotransmitter for the SNS, causes dilation of the pupil." link
=> So blocking re-uptake of noradrenaline (aka norepinephrine) causes pupil dilatation. Too optimistic?
29-01-2008, 22:22
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