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2-Hour Therapy May Cure Arachnophobia

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136399049 2 Hour Therapy May Cure Arachnophobia

A red-kneed spider rests on a zookeeper’s hand. (credit: Dan Kitwood/Getty Images)

NEW YORK (CBS NEWS) - Arachnophobia — or a fear of spiders — is one of the most common “specific phobias.” For some spider-phobes, their anxiety is so intense that they won’t stay in their homes if they see an eight-legged creature crawling.

But new research shows a promising treatment for those afflicted with arachnophobia. Northwestern University researchers found out that after a single therapy session, subjects were able to touch or hold a tarantula — even up to six months after the session.

In the study, which was published in the May 21 issue of Proceedings of the National Academy of Sciences, 12 adults with arachnophobia were examined with functional MRI brain scans. Before starting therapy, the researchers monitored their brains as they approached a tarantula in a terrarium. When they saw the spider, the sections of their brain related to fear response — the amygdala, insula and cingulate cortex — lit up with activity. On average, subjects could not get closer than 10 feet to the tarantula.

Then the subjects underwent a two-to-three hour therapy session called “short-exposure therapy,” in which they were taught about tarantulas and learned many of the fears they believed about spiders was not true. “They thought the tarantula might be capable of jumping out of the cage and onto them,” Katherina Hauner, post-doctoral fellow in neurology at Northwestern University Feinberg School of Medicine and lead author of the paper, said in the press release. “Some thought the tarantula was capable of planning something evil to purposefully hurt them. I would teach them the tarantula is fragile and more interested in trying to hide herself.”

Then, the subjects gradually learned to approach the spider until they touched the outside of the terrarium. They were then instructed to touch the spider with a paintbrush, then a glove, then pet it with their bare hands or hold it.

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