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Offbeat Erotic images can turn you blind

Jung

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http://www.newscientist.com/article.ns?id=dn7845&feedId=online-news_rss20

Researchers have finally found evidence for what good Catholic boys have known all along – erotic images make you go blind. The effect is temporary and lasts just a moment, but the research has added to road-safety campaigners’ calls to ban sexy billboard-advertising near busy roads, in the hope of preventing accidents.

The new study by US psychologists found that people shown erotic or gory images frequently fail to process images they see immediately afterwards. And the researchers say some personality types appear to be affected more than others by the phenomenon, known as “emotion-induced blindness”.

David Zald, from Vanderbilt University in Nashville, Tennessee, and Marvin Chun and colleagues from Yale University in Connecticut, showed hundreds of images to volunteers and asked them to pick a specific image from the rapid sequence. Most of the images were landscape or architectural scenes, but the psychologists included a few emotionally charged images, portraying violent or sexually provocative scenes.

The closer these emotionally charged images occurred prior to the target image, the more frequently people failed to spot the target image, the researchers found.

“We observed that people failed to detect visual images that appeared one-fifth of a second after emotional images, whereas they can detect those images with little problem after neutral images,” Zald says.

Primitive brain

“We think there is essentially a bottleneck for information processing and if a certain type of stimulus captures attention, it can jam up the bottleneck so subsequent information can’t get through,” Zald explains. “It appears to happen involuntarily. The stimulus captures attention and once allocated to that particular stimulus, no other stimuli can get through” for several tenths of a second.

He believes that a primitive part of the brain, known as the amygdala, may play a part. That region is involved in evaluating sensory input according to its emotional relevance and has an autonomic role, influencing heart rate and sweating.

“It is possible that emotionally-charged stimuli produce preferential rapid routing of the impulse that bypasses the slower cortical route via the amygdala," Zald told New Scientist. "Patients with amygdala lesions pick out the target image without reacting to violent images, although they show normal blindness reactions when sexual images are introduced, which suggests another mechanism may also be involved.”

Harm avoiders

The researchers think emotion-induced blindness could lead to drivers simply not seeing another car or pedestrian if they have just witnessed an emotionally charged scene, such as an accident or sexually explicit billboard.

The effect could exacerbate the more obvious problem of drivers simply being distracted by large, arresting images. "It's the responsibility of drivers to ensure that when they are behind the wheel they keep their eyes on the job in hand," says a spokeswoman from Brake, a UK road safety organisation.

And some people are more vulnerable than others. The study assessed participants using a personality questionnaire, rating them according to their level of “harm avoidance”. Those scoring highly were more fearful, careful and cautious; those scoring low were more carefree and more comfortable in difficult or dangerous situations.

The researchers found that those with low harm avoidance scores were better able to stay focused on a target image than those with high harm avoidance scores.

“People who are more harm avoidant may not be detecting negative stimuli more than other people, but they have a greater difficulty suppressing that information,” Zald suggests.

The Brake spokeswoman says companies should think about the consequences of placing emotionally charged billboards at dangerous road junctions: “We should be concerned if drivers are experiencing split-second breaks in concentration, which could result in an accident or death on the roads.”

Journal reference: Psychonomic Bulletin and Review (August 2005 issue)
I wonder how ole' Hugh kept his eye sight all these years.
 

jamesp

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Forget Hugh, what about me?! No wonder my eyesight keeps getting worse! Damn you internet! You will be my downfall!
 
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junglizm said:
http://www.newscientist.com/article.ns?id=dn7845&feedId=online-news_rss20


I wonder how ole' Hugh kept his eye sight all these years.
Well 'duh. ::fpalm::
I mean, who the fuck wouldn't rather remember the picture of a naked chick than one of a pretty maple leaf or cute puppy dog when flashed in rapid sequence? Idiots... :)
Another study to tall us what we already know...we like sex.
Just what I need...something else for the religious-right to pounce on.

EDIT:
jamesp said:
Forget Hugh, what about me?! No wonder my eyesight keeps getting worse! Damn you internet! You will be my downfall!
Hooray for LASIK!!!!!!!
 
Last edited by a moderator:

Descent

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jamesp said:
Forget Hugh, what about me?! No wonder my eyesight keeps getting worse! Damn you internet! You will be my downfall!
So THAT's why I'm 20/200!

Seriously, I'm 20/200 :(.
 

jamesp

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Descent said:
So THAT's why I'm 20/200!

Seriously, I'm 20/200 :(.
Wow, that could seriously be the answer to your vision being that bad.
 

Descent

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jamesp said:
Wow, that could seriously be the answer to your vision being that bad.
I hope not.

[Horrible mental images edited for your sanity.]

[Actually Junglizm, there was no imagery there.] - Descent
 

Descent

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I Hate The FCC said:
Oh god, I suspect Gehy Mongolian porn to be brought up. :ut-oh:
No, actually it was a punchline that held zero imagery whatsoever. It could have easily been on the cover of Better Homes and Gardens without much of a ruckus.

Junglizm just performed a "corporate takeover" of The Issues so you can no longer make non-serious threads or posts.
 

Jung

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Descent said:
Junglizm just performed a "corporate takeover" of The Issues so you can no longer make non-serious threads or posts.
As usual, your rationalizations make no sense and aren't based on any sort of proof. Funny and non-serious is just fine, look at the alternative fuel thread for an example. I seriously doubt anyone wants to hear about your masturbation though, and people have said as much in the past. Furthermore, your post wasn't even funny, it was disgusting and completely off topic.

If you feel I'm not doing my job as a moderator, then use this link and PM Jason your concerns. Don't derail this thread any further though.
 

Descent

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junglizm said:
As usual, your rationalizations make no sense and aren't based on any sort of proof. Funny and non-serious is just fine, look at the alternative fuel thread for an example. I seriously doubt anyone wants to hear about your masturbation though, and people have said as much in the past. Furthermore, your post wasn't even funny, it was disgusting and completely off topic.

If you feel I'm not doing my job as a moderator, then use this link and PM Jason your concerns. Don't derail this thread any further though.
No, you're doing a fine job. I just kinda miss the "LOL BUSH SUCKS" threads.

And when did I talk about MYSELF masturbating in that post? Never.

So I'm dropping it here.