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Invisiblepsyphon
mneumatic device

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Registered: 11/27/01
Posts: 565
Re: Why do pupils dilate on some drugs? [Re: zeta]
    #2525452 - 04/04/04 06:37 PM (19 years, 11 months ago)

Interestingly enough though, cocaine is a narcotic, which is classically something that causes sleep. Its a very interesting molecule, with interesting pharmacology.


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"The real voyage of discovery consists not in seeking new landscapes but in having new eyes."
- Marcel Proust

I wish you all ceaselessly flowing moments of happiness.

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InvisibleHeavyToilet
The Heaviest OfThem All
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Registered: 08/06/03
Posts: 9,458
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Re: Why do pupils dilate on some drugs? [Re: psyphon]
    #2525467 - 04/04/04 06:41 PM (19 years, 11 months ago)

I don't think cocaine is a narcotic.

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OfflineGinseng
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Registered: 11/27/03
Posts: 226
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Re: Why do pupils dilate on some drugs? [Re: benson7]
    #2525866 - 04/04/04 09:03 PM (19 years, 11 months ago)

i figured your pupils dilate because in a way these drugs are trying to *open your eyes* to the real world...

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InvisibleTremor1127
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Registered: 08/10/03
Posts: 3,404
Loc: In a Van Down By the Rive...
Re: Why do pupils dilate on some drugs? [Re: psyphon]
    #2526029 - 04/04/04 10:08 PM (19 years, 11 months ago)

cocaine is a stimulant dude...

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Offlinemopeds_beep_beep
newbie
Registered: 03/19/04
Posts: 45
Last seen: 19 years, 9 months
Re: Why do pupils dilate on some drugs? [Re: zeta]
    #2526265 - 04/05/04 12:09 AM (19 years, 11 months ago)

Lol sorry, i misinterpreted the reading... im also a dumbass

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OfflineSigno
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Re: Why do pupils dilate on some drugs? [Re: mopeds_beep_beep]
    #2526615 - 04/05/04 03:44 AM (19 years, 11 months ago)

wow, alot of misinformation in this thread....im not even going to touch it... :wexican:


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InvisibleSixCee
keep rolling
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Registered: 06/12/02
Posts: 3,720
Loc: US, Chicago
Re: Why do pupils dilate on some drugs? [Re: ChiefThunderbong]
    #2528691 - 04/05/04 05:52 PM (19 years, 11 months ago)

Chloroplasts reflect green light and absorb the other lights, giving the effect of being green.

Now answer the fuckin question foo!  :crazy2:


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InvisibleSixCee
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Re: Why do pupils dilate on some drugs? [Re: Ravus]
    #2528726 - 04/05/04 06:02 PM (19 years, 11 months ago)

Quote:

Ravus said:
Quote:

Divided_Sky said:
When a foreign substance is introduced into your body and starts affecting the way you function, the natural reaction is adrenaline: your heart rate increases, your eyes dilate. It's like shock. Same thing happens if you are in a high stress situation.




If so then the guy who directed Fear and Loathing must've made something wrong, because when Duke ate the adrenochrome his pupils were the size of a needle.

I also wonder, why is it that cocaine makes the pupils dilate, but heroin and some other opiates make the pupils shrink?





Mind altering chemicals don't all dilate the pupils or work in the same way. Like coke and heroin are two completely different substances. Also adrenachrome is a myth.


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Offlinelittlejohn747
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Registered: 09/18/03
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Re: Why do pupils dilate on some drugs? [Re: SixCee]
    #2529307 - 04/05/04 08:40 PM (19 years, 11 months ago)

I am sure I am way over simplizing this but I always thought of it like this.I read that you pupils dialate when you look at somthing that you find pleasing(on one level or another) so that means that some chemicals start kicking in your body to make a change to your over all mental state during that time during which your pupils dialate as like a side effect to these chemicals(or so that is how i understood it). So if all this is true than when you trip say these same chemicals start to be produced (On a much greater scale) and like befor you eyes dialate.Maybe i am way off but i too have been wondering this for a long time.It would be really great if someone could explain in layman why this happens.

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InvisibleSixCee
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Re: Why do pupils dilate on some drugs? [Re: littlejohn747]
    #2529422 - 04/05/04 09:05 PM (19 years, 11 months ago)

I have read the same thing. Some researches done an experiment where they showed several people (some males some females) pictures of attractive and not so attractive people. The researchers noted that the test subject's eyes dilated when he/she saw a picture of an attractive person and not nearly as much when the picture was of an unattractive person.


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Invisiblepsyphon
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Registered: 11/27/01
Posts: 565
Re: Why do pupils dilate on some drugs? [Re: Tremor1127]
    #2531003 - 04/06/04 09:38 AM (19 years, 11 months ago)

Ok sorry, I guess I didn't mean to say that it is a narcotic. I did hear something about it having an unusual chemical structure for its effects. Maybe I meant to say its a tropane alkaloid, like those found in belladonna, jimson weed, datura, etc. Obviously cocaine has different effects from those alkaloids. Typical tropane alkaloids can be used to induce sleep.

Also I'm pretty sure most stimulants don't have anesthetic effects.

I just meant to say that its an interesting molecule with interesting pharmacology. I try not to spread misinformation.


--------------------
"The real voyage of discovery consists not in seeking new landscapes but in having new eyes."
- Marcel Proust

I wish you all ceaselessly flowing moments of happiness.

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OfflinePsilygirl
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Registered: 08/28/03
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Re: Why do pupils dilate on some drugs? [Re: benson7]
    #2531583 - 04/06/04 01:08 PM (19 years, 11 months ago)

well, some of these responses are kinda silly, and some are useful.  here's my take on the whole thing.

drugs interact with your nervous system--that's what causes a response and makes you feel different.  any standard bio text will explain that there are 2 types of autonomic nervous systems: sympathetic and parasympathetic.

your sympathetic nerves are you're "fight or flight" nerves and prepare the body for a more stressful situation.  it causes: dilated pupils, increased heartbeat, inhibits stomach and intestine activity, stimulates the release of glucose, secretes norepinephrine and epinephrine and relaxes the airways.

your parasympathetic nerves, on the contrary, are you're "rest and digest" nerves and promote relaxation and digestion.  it causes: constricted pupils, slow heartbeat, stimulates stomach and intestine activity, inhibits the release of glucose and constricts the airways.

so whats the take home message?  pupil dilation or constriction is the result of a certain drugs specific interaction with your nervous system (which, as far as hallucinogens, there isnt much publishing on).  so depending on the drug, your nervous system has a different response.

:sun:
psily


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"Love says 'I am everything.' Wisdom says 'I am nothing.' Between the two, my life flows."


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