You Are What You Write
May 16, 2014
Healthy eating advocates live by the motto, "You are what you eat," popularized by the 1940 book of the same title by Victor Lindlahr. The phase is actually much older than that, having been first written in 1826 by the French gastronome, Anthelme Brillat-Savarin, as "Tell me what you eat, and I will tell you what you are."
I'm familiar with the research of many scientists, but this is not a result of their inviting me into their laboratories to witness their experiments. I know of their research through their published articles; so, in effect, a scientist is what he writes.
Just as a craftsman needs his tools to create a product, an author needs the proper words. Often, complex ideas can be relayed by a single word, but usually multiple word phrases are required. At one time it was believed that Eskimos have many different words for snow. This idea took on a life of its own, until the number reached a hundred, but it's now discredited.
The Sapir–Whorf hypothesis is the idea that we are constrained to entertain only those thoughts that can be expressed in our language. I mentioned the Sapir–Whorf hypothesis in a previous article (Conserved Words, September 16, 2013). In my own publications, I found it hard not to use the same familiar phases, paper after paper, since they seemed to best express the intended concept.
Tobias Kuhn and Dirk Helbing of the ETH Zurich (Zurich, Switzerland) and Matja Perc of the University of Maribor (Maribor, Slovenia) have just published a paper on arXiv that describes their research in the propagation of scientific memes in published papers. A meme is something that spreads from person to person, and in this case that object is a written phrase.[2-3]
The idea of a meme was invented by evolutionary biologist, Richard Dawkins, and it appeared in his 1976 book, "The Selfish Gene." Because of the Internet, human culture has been piling up
many new memes, and my favorite among all these is Mélissa Theuriau.
Kuhn, Helbing and Perc examined databases of scientific publications containing citation data, searching for meme propagation from "parent" to "child" papers. The availability of citations in the database is essential to determining meme transmission from one paper to the next. Their emphasis was on the half a million papers published in the Physical Review between July 1893 and December 2009, but they looked, also, for confirmatory data from the Web of Science and the open access subset of PubMed Central.
The most often used memes found in the study included loop quantum cosmology, sonoluminescence, stochastic resonance, carbon nanotubes, nanotubes, black hole, and dark energy.[2-3] Such recurrent "material memes" as MgB2, NbSe3, CuGeO3 and CeCoIn5, were also highly ranked.[2-3]
As shown in the above figure, scientific memes generally wax and wane. As the authors write,
"As new scientific paradigms emerge, the old ones seem to quickly lose their appeal, and only a few memes manage to top the rankings over extended periods of time."
The same happens to Internet memes. I haven't seen Mélissa Theuriau in quite some time.
Of course, writing is just half of the scientific equation. Scientists need to read the papers published by other scientists, and there's a lot to read. I must confess that my usual routine was to save copies of important papers for later reading, but never read them. Today, with Internet search, we have on-demand access to what's important at the moment, so reading the journals has gone out of style.
Before the Internet, the only recourse to keeping current in your scientific field was the ability of quickly scan through journals, stopping to read only what seemed to be important, then moving on. As they say, a picture is worth a thousand words, and data plots convey a lot of information quickly in this process. This isn't speed reading. It's more like selective reading.
Recently, speed reading has gotten a lot of attention, since most texts are in electronic form and there are computer applications designed to force you into a speed reading mode. A listing of some of these applications can be found in ref. 4. Are such forced speed reading methods productive? That sounds like a question that can be addressed by an experiment.
That's what Elizabeth R. Schotter, Randy Tran and Keith Rayner of the University of California, San Diego, did, and a report of the results of this experiment has just been published in the journal, Psychological Science.[5-7] Their finding is that reading comprehension is enhanced by the reader's ability to backtrack to previously read text, something that's prevented by speed reading applications.
Speed reading applications are based on the idea that the humans waste a lot of reading time by not maintaining a forward flow through the words of a text, so they force this flow by a variety of techniques lumped into the acronym, RSVP, for rapid serial visual presentation. This idea has been around since at least the 1980s; and, when it was tested at that time, RSVP showed impaired comprehension.
In the UCSD study, forty college students were asked to read sentences on a computer screen. An eye-tracking camera was used to determine where they were reading, and half the time the preceding words were "x"-ed out; that is, "Mary had a little lamb" would appear as "XXXX XXX X XXXXXX lamb" if the participant had read up to "lamb."[6-7] For the purpose of the study, some sentences were ambiguous and unpunctuated; for example, "While the man drank the water that was clear and cold overflowed from the toilet."
Results of a yes/no questionnaire of reading comprehension showed that comprehension dropped by about 25% for the blocked passages. When ambiguous text was replaced by normal text, the comprehension was about the same. This indicates that back-tracking occurs when we don't understand a sentence the first time we read it, so we go back and try again.
Psychological scientist, Elizabeth Schotter, lead author of the study, says,
"Our findings show that eye movements are a crucial part of the reading process... Our ability to control the timing and sequence of how we intake information about the text is important for comprehension. Our brains control how our eyes move through the text — ensuring that we get the right information at the right time... When readers cannot backtrack and get more information from words and phrases, their comprehension of the text is impaired."
|When speed-reading meant ten words per minute.|
(Illustration by Florence White Williams from "Willie Mouse Goes on a Journey to Find the Moon" by Alta Tabor, undated, via Project Gutenberg.)
- In French, "Dis-moi ce que tu manges, je te dirai ce que tu es." The meaning and origin of the expression: You are what you eat, from The Phrase Finder.
- Tobias Kuhn, Matjaz Perc and Dirk Helbing, "Inheritance patterns in citation networks reveal scientific memes," arXiv Preprint Server, April 14, 2014.
- Algorithm Distinguishes Memes from Ordinary Information, The Physics arXiv Blog, April 24, 2014.
- Thorin Klosowski, "The Truth About Speed Reading," Lifehacker, March 13, 2014.
- Elizabeth R. Schotter, Randy Tran and Keith Rayner, "Don't Believe What You Read (Only Once)," Psychological Science, Published online before print April 18, 2014, doi: 10.1177/0956797614531148.
- Speed-Reading Apps May Impair Reading Comprehension by Limiting Ability to Backtrack, Psychological Science Press Release, April 22, 2014.
- Nathan Collins, "ScienceShot: Want to Understand This Article?" Science, April 25, 2014.
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