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stories filed under: "brains"
Studies

Studies

by Mike Masnick


Filed Under:
brains, research, violent video games



Studying Violent Video Games Causes Unnecessary Extrapolations! News At Eleven!

from the sigh dept

It's hard to go more than a few weeks without seeing yet another article claiming some kind of "dangerous" impact from people playing violent video games. Of course, almost every study that suggests this is true has been debunked. What the studies actually tend to show is that while playing violent video games your brain acts emotional and may get desensitized to the violence being witnessed -- but that makes total sense. You should actually be surprised if playing a game didn't get you emotionally invested in the game and seeing the same thing over and over again didn't shock you as much as the first time. What none of the studies actually shows, however, is that playing these games later leads to violent activity. In fact, the ongoing decrease in violence just as these games have become increasingly popular certainly hints that they're not a major cause of violent activity (this is further supported by a study showing that violent movies seem to decrease incidents of violence). However, that doesn't stop researchers and the press from extrapolating their findings out to conclude that violent video games must lead to violence, despite the lack of proof.

The latest is some new research out of Taiwan, found via the Raw Feed, suggesting that playing violent video games decreases the flow of blood to your brain. There could be any number of biological reasons for this, but it doesn't stop the researchers from claiming that those playing these violent video games may "risk damaging brain function and affect their learning and emotional control." Again, that sounds like quite an extrapolation from just looking at the rate of blood flow to the brain -- and luckily people are already questioning the results of the study.

22 Comments | Leave a Comment..

 
Bleeding Edge

Bleeding Edge

by Mike Masnick


Filed Under:
brains, memory, pagerank, psychology, recall

Companies:
google



Google's PageRank Works Like Our Brains

from the what's-your-brainrank? dept

We've joked in the past about how Google effectively acts as a a secondary or "backup" brain for many people. However, perhaps it wasn't so much of a joke. New research on how human memory and recall works suggests that the process is quite similar to Google's PageRank in determining what things are more important and should be recalled first. Basically, Google's PageRank looks at "popularity," not just in terms of how many links a site gets, but also in terms of how popular those links are. Thus, if you get linked from a more popular site, that's more valuable than getting linked by a bunch of non-popular sites. It turns out that the brain does something similar in linking concepts, judging not just the popularity, but the popularity of the concepts linked to the concepts. In fact, using Google's PageRank turned out to be a better predictor of how a brain would prioritize words than more commonly known methods.

This could be an interesting finding for the artificial intelligence community. After all, many in the AI community have been trying to figure out how to make computers act more like human brains for years, and various brute force methods haven't worked all that well. Obviously, the AI world has worked on various neural net research for quite some time, but it's nice to see at least some confirmation from the psychology side concerning a way to match up brains and algorithms. A couple years ago, we noted that intelligence was often correlated to people who knew what to forget rather than trying to remember everything. What that really shows is that good brains are better at prioritizing and ranking the importance of something -- and that's exactly what PageRank is intended to do. So, now, we just need Larry Page to get back from his honeymoon and get to work on BrainRank. Or would that be PageBrain? Of course, it's also worth noting that with the rise of search engine spamming, rumor has it that Google doesn't use PageRank that much any more. Perhaps that just means that our brains are vulnerable to concept spamming as well...

13 Comments | Leave a Comment..

 
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