Nov 10 - Scientists Using Tarantulas to Break Down Human Fear

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 7 years ago '04        #1
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Exs 151 heat pts151
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Nov 10 - Scientists Using Tarantulas to Break Down Human Fear
 

 

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Scientists using tarantulas to unpick human fear have found that the brain responds differently to threats based on proximity, direction and how scary people expect something to be.

Researchers from the Cognition and Brain Sciences Unit in Cambridge, England used functional magnetic resonance imaging, or fMRI, to track brain activity in 20 volunteers as they watched a tarantula placed near their feet, and then moved closer.


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Their results suggest that different components of the brain's fear network serve specific threat-response functions and could help scientists diagnose and treat patients who suffer from clinical phobias.



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"We've shown that it's not just a single structure in the brain, it's a number of different parts of the fear network and they are working together to orchestrate the fear response," Dean Mobbs, who led the study, said in a telephone interview


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Mobbs's team a.ssessed the volunteers' brain activity during three sections of the study: first when the tarantula was in a segmented box near their foot and then moved either to nearer or more distant compartments of the box, and also when the spider walked in different directions.

"It seems that when a spider is further away moves closer to you, you see a switch from the anxiety regions of the brain to the panic regions," said Mobbs.

He said there was more activity in the brain's panic response center when the tarantula crept closer than when it retreated, regardless of how close it was in the first place.

He explained that the volunteers were actually watching an elaborately rigged video of a tarantula which they believed was near their foot, since getting the spider to do the same thing for each volunteer would have been impossible.


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The scientists also asked volunteers beforehand how scared they thought they might be of the tarantula, and found that those who thought they would be most scared had a false impression afterwards of how large the spider was.

The scientists think it may be this so-called "expectation error" that could be the key to people developing a phobia -- an irrational, intense and persistent fear of certain things, people, animals or situations.


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"This may be one cognitive mechanism by which people acquire phobias," said Mobbs. He said that since the expectation of great fear appeared to make a person exaggerate the size of the threat in their mind, this could trigger a "cascade effect," distorting the other processes in the brain to react to a larger threat and panic yet more as it came closer.


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 http://www.businessweek.c .. ay/645622.html


Last edited by Exs; 11-10-2010 at 03:41 AM..

31 comments for "Nov 10 - Scientists Using Tarantulas to Break Down Human Fear"

 7 years ago '06        #2
King Allister 36 heat pts36
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f**k f**k f**k f**k f**k f**k f**k f**k f**k fucccck
 7 years ago '04        #3
Exs 151 heat pts151 OP
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 Allister said:
f**k f**k f**k f**k f**k f**k f**k f**k f**k fucccck
pick one up if you ever get a chance...

they're actually very tolerant of human beings...


Nature is your friend :)
 7 years ago '09        #4
K0ntrast 63 heat pts63
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They look cute
 7 years ago '09        #5
klm1015 10 heat pts10
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why all the f**king pics? that s**t aint cool had me checkin all over my room reading that s**t
 7 years ago '04        #6
sideshow20 17 heat pts17
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f**k spiders...and that's real.
 7 years ago '04        #7
Mr_GooD_NeWs 26 heat pts26
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SPIDERSfuggTHAT






rather run across a snake than a spider
 7 years ago '05        #8
Woodwin 2 heat pts
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lol that last picture of Tarantula movie had to watch for entomology class....move was pretty good actually
 7 years ago '07        #9
monstara33 4 heat pts
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LOL Couldnt have been me. As soon as i would have heard spider, it woulda been
 7 years ago '07        #10
Antbone 
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..
 7 years ago '09        #11
Jmoore334 
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 7 years ago '09        #12
TriniSoldier 64 heat pts64
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Obviously the closer the n*gga gets, the more afraid he gonna be. The f**k a regular person look like standing 2 inches from a tarantula with a smile on his face?

But with that said, I've had a pet tarantula since I was a baby, we be feeding that n*gga grasshoppers
 7 years ago '04        #13
WhoThaFuk 2 heat pts
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Tarantulas are really nice...
 7 years ago '04        #14
K1 68 heat pts68
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 dragswizz said:

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 7 years ago '05        #15
THEINFAMOUS 19 heat pts19
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 dragswizz said:
they're actually very tolerant of human beings...
This VVVVVVVVV

 Jmoore334 said:

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 7 years ago '04        #16
refuze 284 heat pts284
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man, how the f**k do some of yall claim to be tough as s**t, not scared of anybody but freak out when you see a spider (not even a real one, a f**kING picture)?
 11-10-2010, 05:48 PM         #17
Chest Rockwell 
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 klm1015 said:
why all the f**king pics? that s**t aint cool had me checkin all over my room reading that s**t
this


id almost rather be trapped in a room with a grizzly bear than one of these little f**kers :ahh:
 11-10-2010, 05:51 PM         #18
Chest Rockwell 
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 dragswizz said:


Nature is your friend :)
yea tell that to haitians
 7 years ago '10        #19
smoothSeph 63 heat pts63
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 Chest Rockwell said:
yea tell that to haitians
too cold
 7 years ago '04        #20
creep 14 heat pts14
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f**k that.. if i see one of those f**kers its gettin jollystomped.
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