Encephalon #73

Like with the Skeptics Circle, I haven't been keeping up with Encephalon (not since I last hosted it, in fact). So... Channel N hosted the 73rd edition of the carnival. Pieces to check out: The Neurocritic on whether cognitive behavioral therapy is effective, Brain Stimulant on a plan to create a computer simulation of the Drosophila brain, and Providentia on the fascinating 17th/18th century scientist Emmanuel Swedenborg.

Friday Fun: A brief history of religion

Skeptics' Circle #116

It's been quite a while since I've kept up with the Skeptics Circle, and I want to get back in the habit. So... the 116th edition of the Circle is out over at Beyond the Short Coat. Posts to check out: The Skeptical Teacher on the physics of the bed of nails and the weird birther movement, Thinking is Real on accomodationism (I don't agree with him, but it's an interesting post), The Bronze Dog on the psychology of woos (particularly recommended), and The Naked Skeptic on psychics who refuse the name.

Note: I'm hosting the next edition of the carnival, so email me your submissions by August 12th!

Google Bombing for Singh

Note: apparently, dissimenating the original article might get Singh into further legal trouble. So linking to the archived version is probably a bad idea. A good alternative is the (slightly edited) version on the Sense About Science website.

A large number of people supported Simon Singh's campaign to re-publish the article, "Beware the Spinal Trap", that the British Chiropractic Association is suing him over. The impact of this, however, is going to be somewhat limited because skeptical blogs and magazines (as far as I can tell, at least) predominantly reach already skeptical individuals. A successful Google Bomb, though, could affect far more people because it would push up skeptical information in search rankings. And what would be more delicious than having Singh's article high on the results page of a search for "chiropractic"? If that happens the BCA would well and truly have failed in silencing Singh.

So: take the word "chiropractic" and "chiropractor" and then link each of those to the following archived version of Singh's article: http://svetlana14s.narod.ru/Simon_Singhs_silenced_paper.html. (I chose this website because, the broken English at the top notwithstanding, it contains the original article in full and in context). So it should look like this: chiropractic and chiropractor. Note: it's important that we all link to the same article.

As an extra, you may wish to link "British Chiropractic Association" to: http://www.sciencebasedmedicine.org/?p=555. (I.e. British Chiropractic Association) and "libel law" and/or "English libel law" to: http://www.senseaboutscience.org.uk/index.php/site/project/333/. (I.e. libel law and English libel law).

Thanks to Jeff Martin for pointing out it's "Spinal Trap" not "Spinal Tap".

Beware the Spinal Trap

So I am a day late on this, but I figured I might as well join in. As many of you no doubt know, the British Chiropractic Association is suing author Simon Singh for libel for publishing an article in the Guardian criticizing it for promoting 'bogus treatments'. I agree with pretty much all of the rest of the reality-based community that this is scandalous behavior. People's lives are literally at stake in medicine, so the most rigorous, vigorous and open debate possible should take place when it comes to medical claims. We should keep libel laws out of science. (And while we're at it, the preposterously plaintiff-friendly, libel tourism inviting and anti-free speech English libel laws ought to be changed forthwith).

So I'm joining many blogs, magazines, and other media from around the world in republishing the article Singh is being sued over. May the Streisand effect do its magic and let this information be widely disseminated. I'm also following Orac in republishing the entire article, not the edited version provided by Singh's lawyers. The sentences over which Singh is being sued is in bold. Apparently, publishing the full article could land Singh in further legal trouble, so I have extremely reluctantly edited out the 'offending' sentences. The full article is still archived here.

One final note: do yourself a favor and read Ben Goldacre's fabulous column on this whole debacle.

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Beware the spinal trap

Some practitioners claim it is a cure-all but research suggests chiropractic therapy can be lethal

Simon Singh
The Guardian, Saturday April 19 2008

You might be surprised to know that the founder of chiropractic therapy, Daniel David Palmer, wrote that '99% of all diseases are caused by displaced vertebrae'. In the 1860s, Palmer began to develop his theory that the spine was involved in almost every illness because the spinal cord connects the brain to the rest of the body. Therefore any misalignment could cause a problem in distant parts of the body.

In fact, Palmer's first chiropractic intervention supposedly cured a man who had been profoundly deaf for 17 years. His second treatment was equally strange, because he claimed that he treated a patient with heart trouble by correcting a displaced vertebra.

You might think that modern chiropractors restrict themselves to treating back problems, but in fact some still possess quite wacky ideas. The fundamentalists argue that they can cure anything, including helping treat children with colic, sleeping and feeding problems, frequent ear infections, asthma and prolonged crying - even though there is not a jot of evidence.

I can confidently label these assertions as utter nonsense because I have co-authored a book about alternative medicine with the world's first professor of complementary medicine, Edzard Ernst. He learned chiropractic techniques himself and used them as a doctor. This is when he began to see the need for some critical evaluation. Among other projects, he examined the evidence from 70 trials exploring the benefits of chiropractic therapy in conditions unrelated to the back. He found no evidence to suggest that chiropractors could treat any such conditions.

But what about chiropractic in the context of treating back problems? Manipulating the spine can cure some problems, but results are mixed. To be fair, conventional approaches, such as physiotherapy, also struggle to treat back problems with any consistency. Nevertheless, conventional therapy is still preferable because of the serious dangers associated with chiropractic.

In 2001, a systematic review of five studies revealed that roughly half of all chiropractic patients experience temporary adverse effects, such as pain, numbness, stiffness, dizziness and headaches. These are relatively minor effects, but the frequency is very high, and this has to be weighed against the limited benefit offered by chiropractors.

More worryingly, the hallmark technique of the chiropractor, known as high-velocity, low-amplitude thrust, carries much more significant risks. This involves pushing joints beyond their natural range of motion by applying a short, sharp force. Although this is a safe procedure for most patients, others can suffer dislocations and fractures.

Worse still, manipulation of the neck can damage the vertebral arteries, which supply blood to the brain. So-called vertebral dissection can ultimately cut off the blood supply, which in turn can lead to a stroke and even death. Because there is usually a delay between the vertebral dissection and the blockage of blood to the brain, the link between chiropractic and strokes went unnoticed for many years. Recently, however, it has been possible to identify cases where spinal manipulation has certainly been the cause of vertebral dissection.

Laurie Mathiason was a 20-year-old Canadian waitress who visited a chiropractor 21 times between 1997 and 1998 to relieve her low-back pain. On her penultimate visit she complained of stiffness in her neck. That evening she began dropping plates at the restaurant, so she returned to the chiropractor. As the chiropractor manipulated her neck, Mathiason began to cry, her eyes started to roll, she foamed at the mouth and her body began to convulse. She was rushed to hospital, slipped into a coma and died three days later. At the inquest, the coroner declared: 'Laurie died of a ruptured vertebral artery, which occurred in association with a chiropractic manipulation of the neck.'

This case is not unique. In Canada alone there have been several other women who have died after receiving chiropractic therapy, and Edzard Ernst has identified about 700 cases of serious complications among the medical literature. This should be a major concern for health officials, particularly as under-reporting will mean that the actual number of cases is much higher. If spinal manipulation were a drug with such serious adverse effects and so little demonstrable benefit, then it would almost certainly have been taken off the market.

Simon Singh is the co-author of Trick or Treatment? Alternative Medicine on Trial

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Thanks to Jeff Martin for pointing out it's "Spinal Trap" not "Spinal Tap".

Quote: The ideal critical thinker

The American Philosophical Association commissioned a study in 1988 to articulate an expert consensus definition of the ideal critical thinker. The resulting report (pdf of executive summary) provided the following definition that would be hard to improve upon:

The ideal critical thinker is habitually inquisitive, well-informed, trustful of reason, open-minded, flexible, fair-minded in evaluation, honest in facing personal biases, prudent in making judgments, willing to reconsider, clear about issues, orderly in complex matters, diligent in seeking relevant information, reasonable in the selection of criteria, focused in inquiry, and persistent in seeking results which are as precise as the subject and the circumstances of inquiry permit.

African science blogrolling for July

The updated African science and skepticism blogroll for July:

• 01 and the universe
• Acinonyx Scepticus
• Amanuensis
  
• Ambient Normality
• Bullshit Fatigue
  
• Botswana Skeptic
  
• Effortless Incitement
• Ewan’s Corner
• Ionian Enchantment
• Irreverence
• Limbic Nutrition
  
• Orion Spur
  
• Other Things Amanzi
• Pickled Bushman
• Prometheus Unbound
• Psychohistorian
  
• Reason Check **new**
  
• Scorched
• Shadows Hide
  
• Stop Danie Krügel
  
• Subtle Shift in Emphasis
• The Science Of Sport
• The Skeptic Black Sheep
• The Skeptic Detective

Carnival of the Africans #9

Welcome to the 9th installment of the Carnival of the Africans, the world's premiere blog carnival of sciency and skeptical goodness by Africans or about Africa.

First up this month is our previous host, Simon of Amaneunsis. He's got three great posts: the use of randomized controlled trials in social science, the importance of evidence-based sex education, and how a newspaper (gasp!) got happiness economics wrong.

subtle shift in emphasis is a great blog and, while I can't vouch for the maths, the author's post on homeopathy's silliness is just as good. Bottom line: it's nothing but water. Move on.

Michelle, The Skeptic Blacksheep, has been blogging about psychics of late: first, how these crooks claimed to be in contact with Michael Jackson soon after his death and, second, why psychics appear to have "powers". (Hint: cold reading).

Next, George Claassen of Prometheus Unbound asks: does Koos Kombuis (a well-known South African artist) believe in fairies? Alas, yes. (Sort of).

Botswana Skeptic has a consumer protection message: pyramid-schemes are bad for you. Steer clear.

Tim Beck of Reason Check (a blog new to me) has a whole bunch of interesting and worthy posts. Here I'll highlight just two: Sangomas at university (no, really) and what creationists and conspiracy theorists have in common.

Lastly, Angela of The Skeptic Detective has two posts this month about skeptical issues: a new twist in the autism-vaccination fracas and the media disseminating the views of moon hoax conspiracy nuts.

That, alas, is it! Our next edition is due out in another month and Owen over at 01 and the universe will be our host.