Tag Archives: science

NeuroLitCrit

As part of our seemingly ongoing (though erratic) series of posts with “neuro” in the title, here’s The Guardian on a new bridge discipline between the arts and the sciences: neuro lit crit.

Later this year a group of 12 students in New England will be given a series of specially designed texts to read. Then they will be loaded into a hospital MRI machine and their brains scanned to map their neurological responses.

The scans produced will measure blood flow to the firing synapses of their brain cells, allowing a united team of scientists and literature professors to study how and why human beings respond to complex fiction such as the works of Marcel Proust, Henry James or Virginia Woolf.

What, no sf titles? Surely – if you’re going to engage in such an inherently postmodern activity as neuro lit crit in the first place – you might as well go fully meta, and examine the brain activity of people reading fiction that discusses the science of brain activity…

And here’s another researcher, co-opting literary criticism in the name of advancing that insidious atheistic baby-eating Communo-Darwinist agenda I keep hearing so much about:

Vermeule is examining the role of evolution in fiction: some call it “Darwinian literary studies”. It looks at how human genetics and evolutionary theory shape and influence literature, or at how literature itself may be an expression of evolution. For instance, the fact that much of human fiction is about the search for a suitable mate should suggest that evolutionary forces are at play. Others agree that fiction can be seen as promoting social cohesion or even giving lessons in sexual selection. “It is hard to interpret fiction without an evolutionary view,” said Professor Jonathan Gottschall at Washington and Jefferson College, Pennsylvania.

Hah! That won’t get you far with The Greatest Story Ever Told, “Professor”! If we evolved from dinosaurs, why aren’t there any dinosaurs in the Bible, eh? Tell me that.

Ahem.

Much as with the afore-mentioned neurocinematics, I’m sure someone will hit on the idea of using neuro lit crit for tailoring books that produce the right sort of brain spikes, and prompt a race to the bottom in literary value that will make the pulp magazine explosion look like a damp squib*. I guess our last best hope is that the profit margins will be too small to make it worthwhile… while I’ve complained a few times about wanting a little more science in my fiction, this isn’t what I meant at all. 😉

[ * – Note for the inevitable handful easily-riled genre traditionalists, who will doubtless head straight for the comments box anyway: this sentence is to be read with heavy irony, as is the rest of the post. ]

Beginner’s guide to atom-smashing

Today’s ubiquitous topic in the geek-o-sphere is surely the successful test of the Large Hadron Collider at CERN… so if you were wondering exactly how it is that particle accelerators are supposed to discover hypothetical sub-atomic thingybobs with funny names, Ars Technica is running a series of articles that should fill you in on the basics. Start with Everything You Ever Wanted to Know About Particle Smashers, and proceed from there.

Was Lamarck right along? Why evolution doesn’t work like we thought it did

I expect most Futurismic regulars, much like myself, think they understand the basics of Darwin’s theory of evolution: random mutations occur in each generation, natural selection culls the poor adaptations, repeat and rinse ad infinitum, and the life a creature lives doesn’t affects its genetic legacy.

Well, here’s the thing: it turns out that the last point there – one which I’ll freely admit to having pedantically called people out on for years – may well not be true at all [via Kate Feld]:

… we’ve come to understand that the awesome power of natural selection – frequently referred to as the best idea in the history of science – lies in the sheer elegance of the way such simple principles have generated the unbelievable complexities of life. From two elementary notions – random mutation, and the filtering power of the environment – have emerged, over millennia, such marvels as eyes, the wings of birds and the human brain.Yet epigenetics suggests this isn’t the whole story. If what happens to you during your lifetime – living in a stress-inducing henhouse, say, or overeating in northern Sweden – can affect how your genes express themselves in future generations, the absolutely simple version of natural selection begins to look questionable. Rather than genes simply “offering up” a random smorgasbord of traits in each new generation, which then either prove suited or unsuited to the environment, it seems that the environment plays a role in creating those traits in future generations, if only in a short-term and reversible way.

[…]

Epigenetics is the most vivid reason why the popular understanding of evolution might need revising, but it’s not the only one. We’ve learned that huge proportions of the human genome consist of viruses, or virus-like materials, raising the notion that they got there through infection – meaning that natural selection acts not just on random mutations, but on new stuff that’s introduced from elsewhere. Relatedly, there is growing evidence, at the level of microbes, of genes being transferred not just vertically, from ancestors to parents to offspring, but also horizontally, between organisms.

[…]

Among the arsenal of studies at Shenk’s disposal is one published last year in the Journal of Neuroscience, involving mice bred to possess genetically inherited memory problems. As small recompense for having been bred to be scatterbrained, they were kept in an environment full of stimulating mouse fun: plenty of toys, exercise and attention. Key aspects of their memory skills were shown to improve, and crucially so did those of their offspring, even though the offspring had never experienced the stimulating environment, even as foetuses.

“If a geneticist had suggested as recently as the 1990s that a 12-year-old kid could improve the intellectual nimbleness of his or her future children by studying harder now,” writes Shenk, “that scientist would have been laughed right out of the hall.” Not so now.

And cue selective quote-mining by adherents of Creationism and other theologically-compromised pseudosciences in three, two, one…

No fate but what we make… or maybe not. Is free will an illusion?

A dilemmaBiology professor Anthony Cashmore at the University of Pennsylvania reckons that free will is illusory, and that believing in it is something akin to religious faith:

One of the basic premises of biology and biochemistry is that biological systems are nothing more than a bag of chemicals that obey chemical and physical laws. Generally, we have no problem with the “bag of chemicals” notion when it comes to bacteria, plants, and similar entities. So why is it so difficult to say the same about humans or other “higher level” species, when we’re all governed by the same laws?

As Cashmore explains, the human brain acts at both the conscious level as well as the unconscious. It’s our consciousness that makes us aware of our actions, giving us the sense that we control them, as well. But even without this awareness, our brains can still induce our bodies to act, and studies have indicated that consciousness is something that follows unconscious neural activity. Just because we are often aware of multiple paths to take, that doesn’t mean we actually get to choose one of them based on our own free will. As the ancient Greeks asked, by what mechanism would we be choosing? The physical world is made of causes and effects – “nothing comes from nothing” – but free will, by its very definition, has no physical cause.

All of a sudden, I’m reminded of Nick Bostrom’s simulation argumentperhaps the reason we can’t see a mechanism for free will is that we’re not actually real? Which is a heavy thought for a Monday morning… compare and contrast with Luc Reid’s summary of the neuroscience status quo, and it’s plain to see there’s a whole lot we just plain don’t understand. [image by Julia Manzerova]

Personally, I’m currently leaning somewhat toward the idea that our consciousnesses are enabled by quantum effects caused by entanglement with near-identical minds in universes closely similar to our own… but that probably has more to do with the fact that I finally finished reading Neal Stephenson’s Anathem last week than anything else.

Neuroscience fiction: what do we really know about the mind?

In case you don’t follow Clarkesworld Magazine already (and you really should do, because they’re one of the finest genre fiction webzines about, managing to pay pro rates for about five times as much material as this humble organ every month, and still delivering it to you for free), you might have missed Luc Reid’s essay that went up earlier this month – and it’s time you amended that situation. Neuroscience Fiction and Neuroscience Fantasy” looks at the leading edge of neuroscientific research and refers back to some of the more common mind-related science fiction tropes – like mind control, brain uploading, or memory replay and editing – in order to show how likely they are to ever come true. [image via Hljod.Huskona]

Understanding these things about memory — that we extract details instead of making recordings, that memories are stored in fragments all across our brains, and that a lot of what seems to be memory is really our brains filling in the blanks — it becomes clear that we’ll never be able to download or view memories per se: that would be like trying to show a film when all you have is a capsule review. However, it might be possible eventually to view someone’s imperfect recollection of a memory, along with other thoughts they have.

Well-researched and clearly written, it even has a list of references at the bottom! It’s a great overview of the topic from the layman’s perspective… even if it does debunk a lot of our favourite sf-nal tropes. 🙂