A letter from Professor Rao Yi to Nature's editor


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杂谈 |
分类: 社会时事 |
Dear Phil,
report on the Chinese Olympic gold medalist Ye Shiwen. Over the
last 20
hours, I have received emails from a small fraction of those who
had emailed
you.
brought you so much response, you should be happy to know that
Chinese
readers place much more weight in Nature news reports than the rest
of the
world does. If an event is related to science (even tangentially)
and Nature
publishes a news report, many Chinese readers treat the Nature
report more
seriously than New York Times. Chinese news media also use Nature
news
pieces much more than the regular Western news media would.
worst: 1) the original subtitle implied cheating on Ye’s part,
setting a
negative tone for the report; 2) Callaway presented two facts to
establish
that Ye was strikingly anomalous, but both “facts” were wrong; 3)
Callaway
did not check with experts whose opinions did not supported the
doping
explanation, and thus did not provide a balance report that is the
minimal
standard of fair reporting. Therefore, Callaway is at least
irresponsible,
and could have jumped too quickly to imply that Chinese athletes
were prone
to cheating. He has certainly not held onto the usual standard of
news
reporting.
already noticed the bias in the original subtitle and corrected it
by
changing it from “Performance profiling could help to catch
cheaters in
sports” to “Performance profiling could help to dispel doubts”.
A
presumption of cheating has changed to doubts.
more “anomalous” than she really was by stating: that she was 7
seconds
faster than herself in the same event in July 2012, and that, in
the last 50
meters, she was faster than Ryan Lochte, the gold medalist of the
same
event for men, with the second fastest record.
was only ~5 seconds faster than her own record in July, 2011,
giving the 16
year old a full year rather than less than 4 weeks to improve her
own record
. 2) Ye was faster than Lochte only in the freestyle, not for the
entire 400
meters. Lochte’s time was the second fastest for the entire 400
meters,
for which Ye was not even close (she was more than 20 seconds
slower than
Lochte in 400 meters). Ye was only at her best in freestyle and
trailed
behind other women in the same event in the first 300 meters of
the
individual medley. While Lochte was the fastest in 400 meters, he
was slower
than 5 or 6 men in the last 50 meters of freestyle. Ye was slower
than
those other men. Thus, Ye was only faster than Lochte in a style
that was
her strength and his weakness. Had Callaway done a bit more home
work, then
he would have had a hard time to use these “facts” to highlight the
“
problem”. Had Callaway done double-checking, he would have found
that other
swimmers had significantly improved their own records when they
were in the
teens. Corrections of these facts would have changed the basis for
the
Callaway report.
There are more facts that would have made the performance of Ye
Shiwen more
understandable to the general readership, which I will not go into
details
here. See Attachment 1 for an amazingly quick and well-balanced
description
of Ye’s performance by Wikipedia. Signed reports in Nature should
have been
better than Wikipedia. The contrast between the Callaway report and
the
Wikipedia item shows that the reporter did not interview experts
who had
publicly voiced different opinions.
You should have received an email from Dr. Liming Wang, who
obtained a PhD
from Caltech after publishing first author papers in Nature and
Nature
Neuroscience. He was awarded a prestigious fellowship for an
independent
postdoc at Berkeley. In case his email has been buried among the
hundreds
you have received, I am copying it here as Attachment 2. He had
sent a copy
of his email to me and asked me to look at the issue.
There are many online posts below the Callaway report. Some
students think
that a few very reasonable (and substantive) posts have been
deleted. They
have sent these to me and I am including one authored by Lai Jiang
as
Attachment 3 and another by Zhenxi Zhang as Attachment 4. You can
see that
the anger of students and more established scientists who read
Nature was
supported by facts neglected by Callaway.
One point the British often forget, but the modern Chinese do not,
is that
many in the world wrongly think that the Opium Wars occurred
because the
Chinese sold opium to the British. I had personally experienced
this in June
(2012) when a long time friend of mine at MIT thought that way
while she
and I were in Hong Kong attending a meeting.
The British have a good international image, partly because of your
science
and your scientists: when every middle school student has to know
Newton and
Darwin in textbooks, the entire Britain wins the respect of the
world.
Nature should be proud of the tradition and prestige built by the
great (and
objective) scientists, some of whom have published in Nature to
make Nature
what it is today. Your prestige will be strengthened when you take
steps to
repair the damage caused by your news reporters.
The British have never apologized to us about the Opium Wars and
did not
show slight remorse when leaving Hong Kong in 1997 which the
British forced
us to cede after the British won the Opium Wars. So the memory is
rather
fresh, not just lingering from the 1840s. If Nature refuses to
admit that
this report was not balanced, it will be difficult to “dispel
doubts”
about British supremacy.
The Chinese suffer from a poor image. We also know that we have
many
unsolved problems that we are ashamed of, including cheating. More
and more
Chinese are receptive to legitimate and balanced criticism, as
evidenced by
our public apology for our faults at the badminton games during the
London
Olympic. But we are sensitive to ill-founded criticism with
apparent biases.
Ye Shiwen is only a 16 year old and should have enjoyed her moment
of
professional achievement. When she is known to have passed multiple
tests
before and during the London Olympic and there is no evidence to
accuse her,
it is certainly unjustified when the negative opinions were
highly
publicized but the positive ones were not, especially in a journal
like
Nature.
I hope that you will set record straight and publish opinions that
balance
the Callaway report.
Yi
Yi Rao, Ph.D.
Professor of Neurobiology, Peking University School of Life
Sciences
Beijing, China
Attachment 1 Wikipedia summary of the Ye Shiwen performance
http://en.wikipedia.org/wiki/Ye_Shiwen
2012 Summer Olympics
At the
Ye's time over the final 50m was compared to that
of
Phil Lutton pointed out that Ye had grown from 160cm
at the time of the 2010 Games to 172cm at the 2012 Olympics, and
that "[t]hat sort of difference in height, length of stroke and
size of hand leads to warp-speed improvement".[6]
In the 200m IM, three days later, Ye again was
behind, in third place, at the start of the final leg of the race,
having been in fourth place at the end of the first leg.[14][15]
Attachment 2 Email by Dr. Liming Wang, UC Berkeley
From:
Date: Thu, Aug 2, 2012 at 11:26 AM
Subject: Protest to a Nature article "Why great Olympic feats raise
suspicions"
To:
Philip Campbell, Ph.D. and Editor-in-Chief
of
I am a neurobiologist in University of California,
Berkeley, USA. I (as well as many of my colleagues) found an
article that appeared in
In that article, Mr. Callaway questioned China’s 16-year-old swimmer Ye Shiwen, who won two gold medals in women’s 200-meter and 400-meter individual medley (400 IM) in London Olympics, and said her record-breaking performance “anomalous”. However, the evidence he used to support his reckless statement is simply groundless.
As many have pointed out in the major media, it is
not uncommon for an elite and young swimmer to increase his/her
performance in a relatively short time window. An Australian
swimmer and Olympics gold medalist, Ian Thorpe, said that he
improved his 400-meter performance by 5 seconds around same age as
Ye. UK’s Adrian Moorhouse, a Seoul Olympics gold medalist, also
testified openly that he “improved four seconds” at the age of
17.
The other point that Ewen Callaway used to support
his accusation, that Ye swam faster than US swimmer Ryan Lochte in
the last 50 meters when he won gold in the men’s 400 IM, is
unfortunately also unprovoked.
It is worth pointing out that all the facts I listed above can be easily tracked in major media and from the Internet. With just a little effort Ewen Callaway could have avoided raising groundless and disturbing charges against China’s young athlete in a professional scientific journal.
Even worse, Ewen Callaway further argued that Ye’s
clean drug test in Olympics ”doesn’t rule out the possibility of
doping”, implying that Ye might dope “during training” and escape
the more rigorous tests during Olympics. Such a statement is
disrespectful to Ye and all professional athletes. Following this
logic, Mr. Callaway can easily accuse any athlete “doping” without
having any evidence; and ironically, according to him, those being
accused have no way to prove themselves innocent: even if they pass
all rigorous drug test, they can still be doping at a different
time, or even be dope some unidentified drugs! I cannot help
wondering if presumption of innocence (innocent until proven
guilty) still has people’s belief nowadays, or it is considered
outdated in
Last but not least, although Mr. Callaway claimed
that he was attempting to discuss science, instead of “racial and
political undertones”. Readers can easily smell the hidden (yet
clearly implied) racism and discrimination. Yes, we may all agree
that better methodology for drug test (such as “biological
passport”) is needed for the anti-doping effort. But why the
stunning performance from this 16-year-old gifted swimmer can lead
to such a proposal?
Nature
Bowes Research Fellow
Department of Molecular and Cell Biology
University of California, Berkeley
CA 94720 USA
Attachment 3 Post by Lai Jiang following the Callaway report
It is a shame to see Nature, which nearly all scientists, including myself, regard as the one of the most prestigious and influential physical science magazines to publish a thinly-veiled biased article like this. Granted, this is not a peer-reviewed scientific article and did not go through the scrutiny of picking referees. But to serve as a channel for the general populous to be in touch with and appreciate sciences, the authors and editors should at least present the readers with facts within proper context, which they failed to do blatantly.
1.
Second, as previously pointed out, Ye is only 16 years old and her body is still developing. Bettering oneself by 5 sec over two years may seem impossible for an adult swimmer, but certainly happens among youngsters. Ian Thorpe's interview revealed that his 400m freestyle time increased 5 sec between the age of 15 and 162. For regular people including the author it may be hard to imagine what an elite swimmer can achieve as he or she matures, combined with scientific and persistent training. But jumping to a conclusion that it is "anomalous" based on "Oh that's so tough I can not imagine it is real" is hardly sound.
Third, to compare Ryan Lochte's last 50m to Ye's is a textbook example of what we call to cherry pick your data. Yes, Lochte is slower than Ye in the last 50m, but (as pointed out by Zhenxi) Lochte has a huge lead in the first 300m so that he chose to not push himself too hard to conserve energy for latter events (whether this conforms to the Olympic spirit and the "use one's best efforts to win a match" requirement that the BWF has recently invoked to disqualify four badminton pairs is another topic worth discussing, probably not in Nature, though). On the contrary, Ye is trailing behind after the first 300m and relies on freestyle, which she has an edge, to win the game. Failing to mention this strategic difference, as well as the fact that Lochte is 23.25 sec faster (4:05.18) over all than Ye creates the illusion that a woman swam faster than the best man in the same sport, which sounds impossible. Put aside the gender argument, I believe this is still a leading question that implies the reader that something fishy is going on.
Fourth, another example of cherry picking. In the
same event there are four male swimmers that swam faster than both
Lochter (29.10 sec)3
Fifth, which is the one I oppose the most. The
author quotes Tucks and implies that a drug test can not rule out
the possibility of doping. Is this kind of agnosticism what Nature
really wants to educate its readers? By that standard I estimate
that at least half of the peer-reviewed scientific papers in Nature
should be retracted. How can one convince the editors and reviewers
that their proposed theory works for every possible case? One
cannot. One chooses to apply the theory to typical examples and
demonstrate that in (hopefully) all scenarios considered the theory
works to a degree, and that should warrant a publication, until a
counterexample is found. I could imagine that the author has a
skeptical mind which is critical to scientific thinking, but that
would be put into better use if he can write a real peer-reviewed
paper that discusses the odds of Ye doping on a highly advanced
non-detectable drug that the Chinese has come up within the last 4
years (they obviously did not have it in Beijing, otherwise why not
to use it and woo the audience at home?), based on data and
rational derivation. This paper, however, can be interpreted as
saying that all athletes are doping, and the authorities are just
not good enough to catch them. That may be true, logically, but
definitely will not make the case if there is ever a hearing by
FINA to determine if Ye has doped. To ask the question that if it
is
Sixth, and the last point I would like to make, is that the out-of-competition drug test is already in effect, which the author failed to mention. Per WADA presidentâa‚¬a„¢s press release5, drug testing for olympians began at least 6 months prior to the opening of the London Olympic. Furthermore there are 107 athletes who are banned from this Olympic for doping. That maybe the reason that âa‚¬Å“everyone will pass at the Olympic games. Hardly anyone fails in competition testingâa‚¬Â? Because those who did dope are already sanctioned? The author is free to suggest that a player could have doped beforehand and fool the test at the game, but this possibility certainly is ruled out for Ye.
Over all, even though the author did not falsify any data, he did (intentionally or not) cherry pick data that is far too suggestive to be fair and unbiased, in my view. If you want to cover a story of a suspected doping from a scientific point of view, be impartial and provide all the facts for the reader to judge. You are entitled to your interpretation of the facts, and the expression thereof in your piece, explicitly or otherwise, but only showing evidences which favor your argument is hardly good science or journalism. Such an article in a journal like Nature is not an appropriate example of how scientific research or report should be done.
1http://www.fina.org/H2O/index.php?option=com_wrapper&view=wrapper&Itemid=1241
2http://www.youtube.com/watch?v=8ETPUKlOwV4
3http://www.london2012.com/swimming/event/men-400m-individual-medley/phase=swm054100/index.html
4http://www.london2012.com/swimming/event/women-400m-individual-medley/phase=sww054100/index.html
5http://playtrue.wada-ama.org/news/wada-presidents-addresses-london-2012-press-conference/?utm_source=rss&utm_medium=rss&utm_campaign=wada-presidents-addresses-london-2012-press-conference
Attachment 4 Post by Zhenxi Zhang following the Callaway report
I just want to add this: Phelps improved 4+ seconds
in his 200 fly between 14-15 years old. Ian Thorpe also had a
similar performance improvement. Ye is now 16. She was 160 cm in
height and now 170 cm. Human biology also play a
role
In both the 400 IM and 200 IM finals, Ye were behind until freestyle. Well I guess there is "drug" that just enhances freestyle, but not the backstroke, breast, and fly. Does that make sense? Also, it is not professional to only mention that 'her showing in the last 50 metres, which she swam faster than US swimmer Ryan Lochte did when he won gold in the menâa‚¬a„¢s 400 IM'. The whole fact is that Ye is more than 23 second slower than Lochte in 400 IM. Plus, Freestyle isn't Lochte's best leg, but it is Shiwen's best leg. Lochte had a huge lead on the field, and almost coasted to the finish. He wasn't pressured by the field to go all out that last few meters.
And before we get into the fact there's no way a woman should be able to come close to man's time for a final leg of 50m. May I present the following: Kate Ziegler set a WR in the 1500m freestyle. In the last 50m of her race she had a split of 29.27, which is ONLY 0.17s slower than Lochte final 50m. This was after she swam for 1100m longer than Lochte!
I feel the author would probably not write such a piece if Ye is an American or British. Neither country is clean from athletes caught by doping (See http://en.wikipedia.org/wiki/Use_of_performance-enhancing_drugs_in_the_Olympic_Games). Let's try not to use double standards on the great performance from countries other than US and European countries.