the mind-body problem
[further proof that neurology ain’t the same as conssciousness]
Philadelphia Inquirer - November 6, 2006 http://www.philly.com/mld/inquirer/15939059.htm
Carnal Knowledge Looking at porn through a gender gap
By Faye Flam Inquirer Staff Writer
Last month researchers at McGill University in Canada reconfirmed
what we’ll call the porn paradox: When hooked up to instruments
measuring sexual arousal, men and women reacted with equal speed when
watching pornographic films.
This raises several questions, including why women are so much less
likely than men to consider viewing porn a valuable use of our time.
But the type of material used in the study also raises broader
questions about the effects of porn on both sexes.
Irv Binik, who led the research, said he used special sex films
borrowed from the Kinsey Institute in Illinois. One was predetermined
to be arousing to men, another to women, though Binik says they both
looked the same to him.
Both showed heterosexual couplings.
Why do any of us find it arousing to watch films of other people
having sex? These people are obviously busy. They’re not inviting you
in to join them.
For men at least, British zoologist Robin Baker has an interesting
hypothesis: The pornography industry owes its billions to an ancient
animal instinct still seen in rats and monkeys. If a male of one of
those species runs across a pair mating, the onlooker will not only
become aroused at the sight but will move sperm into the urethra.
Which means, as Baker puts it, “he’s loaded and ready to fire.”
In the evolutionary game, such a reaction could prove advantageous if
you’re tough enough to force the other male off and take over, or
sneaky enough to wait till he leaves and move in while the female is
still in the mood.
Humans tend to have sex in private, so such opportunities don’t
present themselves often, but the instinct could remain with us to be
exploited by pornographers.
Harvard professor Stephen Pinker offers that some male birds will try
to mate with anything resembling a female of the species - a stuffed
female or even just the head of a stuffed female.
“The sight of a fertile member of the opposite sex would normally
correlate with an opportunity to make babies,” he said. Porn fools
your body into reacting instinctively as if the images were real.
Pinker goes on to say men’s taste for pornography goes directly to
one of the most salient behavior differences between men and women:
Men are much more likely to have sex with a total stranger. And
assuming you don’t have many friends who are porn stars, porn shows
you images of strangers who haven’t even so much as bought you dinner.
So what’s going on with the women in this McGill study? Is there
something funny about Canadians?
Binik, the study’s author, said he didn’t actually show that women
like pornography - just that their bodies react to it. He launched
this study as part of a wider investigation into why some women
experience chronic pain during intercourse. Arousal problems can be a
factor.
In the past, measuring arousal involved various probes and meters
that many people found intimidating. So he tried an instrument called
a thermograph that uses a version of remote sensing to measure blood
flow through the body. You still have to take off your clothes, he
said, but the machine doesn’t actually touch anything.
For him, the most important result of the study was that the
instrument worked. Others before him had seen the same effect, he
says, and he doubts the prospect that women secretly like pornography
as much as men do.
“In women you get a lot of disagreement between what the body is
saying and what the mind is saying,” he said.
All of which goes to show that, at least for women, arousal doesn’t
necessarily imply desire.