Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Submission + - Violent Video Games for a Release That Never Comes (neoacademic.com)

RichDiesal writes: A recent article in Psychological Science investigates the use of violent video games by people to experience catharsis — a "release" associated with pent-up aggressive energy. They found that when angered, people are more likely to seek violent video games (academic article behind a paywall) for an emotional release, despite the fact that playing violent video games does not seem to actually provide that release.

If you’re not familiar with the idea of catharsis, consider this quote from a participant in the study: “How could I squelch the urge to set my manager on fire if I couldn’t set people on fire in video games?”

Earth

"Argonaut" Octopus Sucks Air Into Shell As Ballast 72

audiovideodisco writes "Even among octopuses, the Argonaut must be one of the coolest. It gets its nickname — 'paper nautilus' — from the fragile shell the female assembles around herself after mating with the tiny male (whose tentacle/penis breaks off and remains in the female). For millennia, people have wondered what the shell was for; Aristotle thought the octopus used it as a boat and its tentacles as oars and sails. Now scientists who managed to study Argonauts in the wild confirm a different hypothesis: that the octopus sucks air into its shell and uses it for ballast as it weaves its way through the ocean like a tiny submarine. The researchers' beautiful video and photographs show just how the Argonaut pulls off this trick. The regular (non-paper) nautilus also uses its shell for ballast, but the distant relationship between it and all octopuses suggests this is a case of convergent evolution."
Earth

Submission + - How Deep Is the Ocean? (foxnews.com)

Velcroman1 writes: Using lead weights and depth sounders, scientists have made surprisingly accurate estimates of the ocean's depths in the past. Now, with satellites and radar, researchers have pinned down a more accurate answer to that age-old query: How deep is the ocean? And how big? As long ago as 1888, John Murray dangled lead weights from a rope off a ship to calculate the ocean's volume — the product of area and mean ocean depth. Using satellite data, researchers from the Woods Hole Oceanographic Institute (WHOI) set out to more accurately answer that question — and found out that it's 320 million cubic miles. And despite miles-deep abysses like the Mariana Trench, the ocean's mean depth is just 2.29 miles, thanks to the varied and bumpy ocean floor.
Image

Using Augmented Reality To Treat Cockroach Phobia 126

RichDiesal writes "In this blog post, I describe a new use for augmented reality — treating people for cockroach phobia. A recent paper in the academic journal Cyberpsychology, Behavior and Social Networking discusses a system where people suffering from cockroach phobia sit at a desk with a virtual reality headset. The headset has a camera on the front so that patients see the desk they're sitting at — but covered in cockroaches. In the study, researchers managed to elicit a fear response to virtual cockroaches similar to what would be experienced with real cockroaches. Sounds like a little slice of hell to me."
Idle

Submission + - Using Augmented Reality to Treat Cockroach Phobia

RichDiesal writes: In this blog post, I describe a new use for augmented reality — treating people for cockroach phobia. A recent paper in the academic journal Cyberpsychology, Behavior and Social Networking discusses a system where people suffering from cockroach phobia sit at a desk with a virtual reality headset. The headset has a camera on the front so that patients see the desk they're sitting at — but covered in cockroaches. In the study, researchers managed to elicit a fear response to virtual cockroaches similar to what would be experienced with real cockroaches. Sounds like a little slice of hell to me.

Comment Re:Most professors guilty? (Score 1) 467

Also keep in mind that many students want to be someplace else too. It all really depends on your priorities as a student, which is never really made clear to applying undergraduates. If you are self-motivated and want to have the opportunity to get involved in a real laboratory and get experience as a research assistant, then go to an R1 university. You won't have as motivated instructors, but you'll have access to better facilities than you will elsewhere. But if you can't motivate yourself to learn from a book, and you need an instructor to tailor the material so that it's easier for you to learn it, you're probably better off at a small liberal arts college.

Comment Why the Subject Matter Isn't Always Why They Read (Score 2, Informative) 278

Others have noted that the database could negatively affect some researchers for whom a book's subject matter isn't always why they read it."

This is a little vague. The purpose of one of TFAs is to show how inaccurate the metadata on books in their database can be, and how Google is unwilling to do anything about it. Thus, when researchers use Google book search to look up information about books, rather than read the book (as the summary implies), they can be mislead.

Two examples from TFA: a search for "Internet" in books published before 1950 produces 527 results, and a book entitled "Culture and Society 1780-1950" was supposedly published in 1899.

Comment Re:WTF (Score 1) 349

They also defined effect size (a measure of the magnitude of a difference) as a measure of statistical significance (a decision based on the probability that an observed effect size would have occurred due to chance). But I suppose math/statistic confusion is even more common than experimental design confusion.

Comment Re:"A bank in Texas" (Score 4, Informative) 227

This is where RTFA comes in handy. The first paragraph of TFA:

You won't find Amegy Bank of Texas CEO Paul B. Murphy Jr. uploading new profile pictures onto Facebook or linking Twitter feeds to a MySpace page. Murphy, who heads the 87-branch, Houston-based bank, isn't personally involved in the brave new world of social networking Web sites, but he certainly knows what they are. And thanks to his lawyer, his bank is successfully navigating the legal land mines they can contain.

Comment Re:From an Industrial Psychologist... (Score 1) 581

But then what does this include? Isn't knowledge a psychological state? Affectivity? Willingness to communicate?
"You can't discriminate against me just because I don't know things."
"You can't discriminate against me just because I hate everyone around me."
"You can't discriminate against me just because I refuse to talk to my coworkers."
 
It's a slippery slope, which is why it hasn't been added already...

Comment Re:From an Industrial Psychologist (Score 1) 581

True - the correlation between intelligence tests and job performance are usually around .5-.6 and the correlation between conscientiousness (a personality trait) and JP is usually around .2-.3 - but it's better than nothing. But that's why I don't suggest small businesses use them. They only help organizational outcomes (profit) when used in the aggregate, over hundreds of applicants.

For reference, the correlation between unstructured interviews conducting by HR managers and JP is around 0...

Comment Re:From an Industrial Psychologist... (Score 1) 581

The one extraordinary employee you throw away could easily outweigh the benefits of increasing job performance on average.

Drug tests are actually related to job performance as well. If you correlate drug test pass/fail rates with supervisor ratings of job performance within companies that use drug tests but don't hire on them, there actually is a correlation - people who pass drug tests perform better. It's also easily legally defensible, which makes it a no-brainer for most hiring organizations.

Personality actually is correlated with job performance as well, and is job-related. The most empircally-supported personality trait is conscientiousness, which is a person's general tendency toward organization, orderliness, and meeting deadlines. Guess where that kind of tendency is useful. If you already like being organized, and your company wants you to be organized, you're probably going to be better at it than someone who doesn't like it.

Also, if you are conducting a major hiring effort to add 100 employees, your assertion probably is not true. 100 slightly above average employees will still better produce better overall organizational outcomes than 99 randomly hired employees and 1 exceptional one.

Slashdot Top Deals

egrep -n '^[a-z].*\(' $ | sort -t':' +2.0

Working...