Cognitive Daily

Archives for January, 2007

What is it worth to become taller?

At 15, our son Jim is taller than average for his age. Indeed, he’s as tall as me, as this photo illustrates. Our daughter Nora is below average height, 4′ 11″ at 13 years old, but still squarely in the normal range. But what happens when a child is well below normal — when, say,…

Quick reader poll

I noticed from last week’s mega comment thread and also from the referrer log that many of CogDaily’s visitors read the blog via Google Reader. Wondering what all the fuss was about, I tried it out over the weekend. It certainly seems to be a serviceable reader, very similar in appearance and function to Bloglines.…

The best science blogging from 2006

Bora Zivcovic has just accomplished the impossible. He has not only sorted through hundreds of pearls to find those that dazzled most brilliantly, he’s also tamed legions of wild rats, herded a flock of irascible cats and squirrels, and done it in just three weeks, all without mixing a single metaphor. That’s right, Bora has…

Here’s the Cognitive Daily weekly podcast for January 13. Don’t forget that you can subscribe to the podcast using the special RSS feed: http://scienceblogs.com/cognitivedaily/rss-podcasts.xml To subscribe using iTunes, select Subscribe to Podcast from the Advanced menu, then paste or type in the URL. (We believe we’ve resolved the problems we’ve had with the RSS feed…

Casual Fridays: Almost significant

Nonsignificance is the bane of every researcher. They know they’ve got an effect, but those darned statistics prove otherwise. In cognitive psychology, the standard for significance is p < .05, which means, essentially, that there’s a 5 percent chance that the results are simply due to chance, instead of revealing a bona-fide phenomenon. For this…

De-lurking wrap-up

Thank you to the dozens of readers who took me up on my offer yesterday to give a personal response to every comment or question. As of this writing, I’ve got two comments left to respond to, and at that point I’m going to declare the offer expired (no complaints–you had your chance! And I’ve…

Over the past year, CogDaily has had about 400,000 unique visits. During that same time, we’ve received 3,075 comments. Wow! We’re humbled by those numbers. Yet simple division reveals that fewer than 1 in 100 visits actually results in a comment. There must be hundreds — possibly thousands — of visitors to this site who’ve…

We’ve written a lot about video games and aggression here on CogDaily, and typically there has been heated discussion about the results. Why, commenters ask, aren’t you talking about aggression in football players, or road rage, or in any of a thousand other situations? The most important reason is simply that we have a teenage…

For some reason I can’t resist watching Steve Jobs’ Apple keynote speeches. I watched six years ago when he introduced the iPod, and I watched again last night when he introduced his latest “revolutionary” product. People were amazed when the iPod was introduced — but a little shocked by the price. I didn’t buy an…

In movie fight scenes, punches often miss by a foot or more, but when sound effects are added, and the punchee adds an effective-looking recoil, we’re convinced that the punch is “real.” We’ve posted on this phenomenon before: when a “click” sound is played as two animated balls pass by each other, it’s perceived as…