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Anonymous 23/9/2009(Wed)02:51:04 No.273512  
A 48-year-old woman with a stimulating electrode implanted in her right ventral thalamus started to compulsively self-stimulate when she discovered that it could produce erotic sensations.

This is a report from the early days of deep brain stimulation, way back in 1986, from an article for the medical journal Pain which discussed some unintended side-effects from one patient's DBS treatment for chronic pain.

Soon after insertion of the nVPL electrode, the patient noted that stimulation also produced erotic sensations. This pleasurable response was heightened by continuous stimulation at 75% maximal amplitude, frequently augmented by short bursts at maximal amplitude. Though sexual arousal was prominent, no orgasm occurred with these brief increases in stimulation intensity. Despite several episodes of paroxysmal atrial tachycardia [heart disturbance] and development of adverse behavioural and neurological symptoms during maximal stimulation, compulsive use of the stimulator developed.

At its most frequent, the patient self-stimulated throughout the day, neglecting personal hygiene and family commitments. A chronic ulceration developed at the tip of the finger used to adjust the amplitude dial and she frequently tampered with the device in an effort to increase the stimulation amplitude. At times, she implored her to limit her access to the stimulator, each time demanding its return after a short hiatus. During the past two years, compulsive use has become associated with frequent attacks of anxiety, depersonalization, periods of psychogenic polydipsia and virtually complete inactivity.
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Anonymous 23/9/2009(Wed)02:52:16 No.273514
In another controversial experiment in 1972, Dr. Heath wired up a homosexual man’s pleasure centers in order to help him “cure” his homosexuality. During the initial three-hour session, subject “B-19″ stimulated himself some 1,500 times. Dr. Heath wrote of the experiment, “During these sessions, B-19 stimulated himself to a point that he was experiencing an almost overwhelming euphoria and elation, and had to be disconnected, despite his vigorous protests.” Since unnatural methods can bring about unnatural results, energizing the man’s electrodes as he looked at erotic pictures of women temporarily “cured” him of his homosexuality, but once the electrodes were removed, he went back to normal.

Today, medical technology allows such electrodes to be completely implanted into the human body, including a battery pack the size of a book of matches. But these are a rarity, used only in very specific and extreme cases. Not even victims of intractable neuropathic pain or depression are permitted to have their pleasure centers wired. Individuals with happiness deficits are instead treated with drugs, which are both more and less invasive, depending on how you look at it. Medications don’t involve holes drilled into the skull, but they do act upon the entire body, causing a host of unwanted chemical side-effects. Often they also result in a lifelong expense.
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Anonymous 23/9/2009(Wed)02:59:10 No.273518
File: skinner_box_scheme_01_ib4f.png - (71.86kb, 505x509, skinner_box_scheme_01.png)
Two brain researchers, James Olds and Peter Milner, while investigating if rats might be made uncomfortable by electrical stimulation of certain areas of their brain, especially the limbic system, discovered the “pleasure center” in the 1950s. An electrical current was applied to the rat if they entered a specific corner of a cage, the theory being that the uncomfortable effect would deter them from entering that corner. Instead, they came back quickly after the each stimulation. The rats were allowed to press the stimulation lever themselves in later experiments; they pressed it as much as seven-hundred times per hour. This region in the rat’s brain became known as the “pleasure center”.

In later experiments, rats in Skinner boxes with metal electrodes implanted into their nucleus accumbens repeatedly pressed a lever which activated their pleasure center. They did so in preference over food and water, eventually dying from exhaustion.
http://www.scientificamerican.com/article.cfm?id=a-sex-chip
http://www.damninteresting.com/technology-and-the-pursuit-of-happiness
http://books.google.com/books?id=Q9Wgak5gl18C&pg=PA89&lpg=PA89&dq=pleasure+lever+rat+experiment&source=bl&ots=8YigXPUWvM&sig=PKnFQnD73I6GYkmepLbswjvdme4&hl=en&ei=wH-5SundH5PplAeYrNnWDg&sa=X&oi=book_result&ct=result&resnum=1#v=onepage&q=&f=false
http://feww.wordpress.com/2008/03/27/pleasure-center/
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Anonymous 24/9/2009(Thu)05:09:20 No.275867
Thank you, Anon.
I've really enjoyed this.
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Anonymous 29/9/2009(Tue)05:16:56 No.283990
>>273518
this may mean that animals (at least rats) prioritize sex and reproduction over survival.
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Anonymous 29/9/2009(Tue)10:50:09 No.284227
>>283990
if you look at the other articles you will see that it works with humans too, and it's not about sex, It's about pleasure. All we do is to get pleasure be it immediate or not. If we did the same experiment with you or me our fate would be the same of the little rat, hit the pleasure button until we die.
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TurkeyBurgers 10/2/2010(Wed)01:48:59 No.492734
File: w4_ib4f.jpg - (92.97kb, 590x741, w4.jpg)
>>284227

Mindfuck completed. I am now mindfucked.
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Anonymous 02/6/2010(Wed)07:37:14 No.666682
great post. thanks

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