[paudio]

How does the author comes into a conclusion that faster reaction on certain stimuli makes us smarter? Suppose we get to look at a series of pictures of male and female, some of them are family members or spouse. I'm not surprise if when those pictures with family members come up, the time for the brain cell to show electricity is faster than when those of unknown persons.

I'm not denying the correlation with the remnant of prehistoric brain on possible mating (Oohh.. does it mean we believe in evolution now?). I'm just taking issue with the 'makes-your-smarter' headline.

[ctdonath2]

“How does the author comes into a conclusion that faster reaction on certain stimuli makes us smarter?”

Yeah, seems he spent too much time staring at numbers.

Seriously though, seems a “duh” that the brain processes the natural unconcealed figure than when adorned with a proliferation of random concealments.

[trebb]

How does the author comes into a conclusion that faster reaction on certain stimuli makes us smarter?

Astute question - probably being pushed to increase accessibility of porn to the kids so they can be smarter too.

It's like saying that showing the whole face of a family member, vs. showing a shot from the lips to the eyebrows, makes you smarter because you recognize the person faster.