quick therapy stomps on fear of spiders
Last Updated : GMT 06:49:16
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Last Updated : GMT 06:49:16
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Quick therapy stomps on fear of spiders

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Arab Today, arab today Quick therapy stomps on fear of spiders

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The therapy was so successful the adults were able to touch or hold a tarantula in their bare hands six months after the treatment, reports a new study from Northwestern University. This is the first study to document the immediate and long-term brain changes after treatment and to illustrate how the brain reorganizes long-term to reduce fear as a result of the therapy. The findings show the lasting effectiveness of short-exposure therapy for a phobia and offer new directions for treating other phobias and anxiety disorders. “Before treatment, some of these participants wouldn’t walk on grass for fear of spiders or would stay out of their home or dorm room for days if they thought a spider was present,” says Katherina Hauner, post-doctoral fellow in neurology at Northwestern’s Feinberg School of Medicine and lead author of the paper, which will be published this week in Proceedings of the National Academy of Sciences. “But after a two or three-hour treatment, they were able to walk right up and touch or hold a tarantula. And they could still touch it after six months. They were thrilled by what they accomplished.” The study with 12 adults was conducted when Hauner was a graduate student in the lab of Susan Mineka, professor of psychology. Fear of spiders is a subtype of an anxiety disorder called specific phobia, one of the most common anxiety disorders affecting about 7 percent of the population. Common specific phobias also include fear of blood, needles, snakes, flying, and enclosed spaces. The therapy involved gradually approaching the spider. Before the session, the participants were even afraid to look at photos of spiders. When they did, the regions of the brain associated with fear response—the amygdala, insula, and cingulate cortex—lit up with activity in an fMRI scan. Next, when asked to attempt to touch a tarantula in a closed terrarium or approach it as closely as possible, they were not able to get closer than 10 feet on average. During the therapy, participants were taught about tarantulas and learned their catastrophic thoughts about them were not true. “They thought the tarantula might be capable of jumping out of the cage and on to them,” Hauner says. “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. “ They gradually learned to approach the tarantula in slow steps until they were able to touch the outside of the terrarium. Then they touched the tarantula with a paintbrush, a glove, and eventually pet it with their bare hands or held it. “They would see how soft it was and that its movements were very predictable and controllable,” Hauner says. “Most tarantulas aren’t aggressive, they just have a bad reputation.” Immediately after the therapy, an fMRI scan showed the brain regions associated with fear decreased in activity when people encountered the spider photos, a reduction that persisted six months after treatment. When the same participants were were asked to touch the tarantula six months later, “they walked right up to it and touched it,” Hauner says. “It was amazing to see because I remembered how terrified they were initially and so much time had passed since the therapy.” Hauner also could predict for whom the therapy would be most effective based on an individual’s brain activity immediately after the treatment. Participants with higher measurements of activity in brain regions associated with visual perception of fearful stimuli immediately after the treatment were much more likely to show the lowest fear of spiders six months later. “This suggests that observations of brain activity immediately after therapy may be a useful future tool in predicting an individual’s long-term outcome,” Hauner says. She also found the brain regions associated with inhibiting fear only showed changes immediately after the exposure therapy and not after six months, indicating that differing brain mechanisms may be responsible for immediate versus long-term fear reduction. The research was supported by the National Institute of Neurological Disorders and Stroke of the National Institutes of Health, Northwestern University, the Association for Behavioral and Cognitive Therapies, and the Society for a Science of Clinical Psychology.

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