Videos on Route!

I haven’t forgotten about you, Internet.

Where have I been all month? Well, mostly I’ve been running experiments, but I’ve also been working on some videos for a new youtube channel. The first one will be coming out before the 10th of August (2014).. So stay tuned!

How Scientific Diagrams Evolve

Sometimes when I was doing my literature review for my thesis I would crawl down a rabbit hole, searching for the original source. Most often, this involved trying to chase down a particular statistic, hunting through review paper through the wrong primary research articles, and then ending up at one of three finish lines:

1)   I find the actual source with the statistic in a peer-reviewed journal article, which had been properly cited.

2)   I find the actual source with the statistic in a non-peer-reviewed article, book, or website post. It is interesting that people don’t cite the original source, possibly because citing a peer-reviewed article looks better (for those that aren’t looking very hard). Which leads to the final possible outcome:

3)   I find a total dead end, where the thing that was being cited simply didn’t exist. Someone makes up a figure, cites some author, and it gets published. Benefit of the doubt, some of these are very honest mistakes. Still, #fail.

I followed the evolution of a particular diagram back in time. Here are three scientific diagrams about the same thing  (a schematic representing the destruction of plant cell walls through pretreatment), published in three papers, in chronological order (ranging from 1980 to 2011):

plant cell wall pretreatment plant cell wall pretreatment plant cell wall pretreatment

I see an odd sort of beauty in how much the image improves. Like science itself, this image is adapted and sharpened as our understanding of it improves with time. People stand on the shoulders of giants, to draw ever-better diagrams of… plant pre-treatments.

Then this happens:

plant cell wall pretreatment

Credits: me, me, me?

Sure, it is a bit more of a change, and it wasn’t published in a scientific journal (actually, a University of Florida extension article). But it is interesting that although the author cited some of the papers that included the above diagrams, Tong decided to take all of the credit for the image. Is it plagiarism? Technically, yes.

What about the two examples below? They are even more different than the previous one was to the originals, and they don’t cite any previous sources.

plant cell wall pretreatment plant cell wall pretreatment

To me, watching how these images evolve over time stresses the importance of properly citing the original source. Firstly, it isn’t plagiarism, and secondly, by citing a good image, you’re less likely to end up with a poorly-drawn sad-face in your scientific article.

If nothing more, I see these sorts of diagrams as an interesting way to visualize the evolution of memes (as Richard Dawkins originally intended the word, not as the evolved meaning that the word has developed). Were these really distinctly evolved occurrences (like how bats and birds separately evolved the ability of flight), or are they just cheating mimics (like how some harmless snakes have evolved to look surprisingly like deadly venomous ones) ?