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Child Abuse Dials Up the Volume on Pain
Pain Processing in the Brain Is Affected by a History of Abuse
By RADHA CHITALEABC News Medical Unit
April 4, 2008 —About one in 50 infants in the United States experience abuse or neglect in the first year of life, according to a government report published this week. And experts say this maltreatment can also have serious health consequences later in life. "Kids unfortunately who are being maltreated show problems in brain development," said IleanaArias, director of the CDC National Center for Injury Prevention and Control, who, along with the Administration for Children and Families, created the report.
Maltreatment can begin "a trajectory of a number of negative outcomes, including health outcomes," according to Arias. Now, the mechanism behind those problems may have been pinned down. A recent study revealed a physiological connection between child abuse and feelings of intense pain. Researchers at UCLA and the University of North Carolina compared pain responses in agroup of women with and without irritable bowel syndrome (IBS), with surprising results.
In a test group of 20 women, 10 suffered from IBS and 10 did not. Both groups had people with a history of abuse, both physical and sexual. When subjected to mildly painful stimuli, the subjects with both IBS and a history of abuse reported feeling more intense pain than theircounterparts. In addition to self-reported data from the test subjects, the authors were able to document thepain experience using fMRI brain imaging. This data showed that the women who reported themost pain had heightened activity in the sensation and emotion regions of the brain. In addition, the brain areas that normally help to dampen negative sensations and emotions were inhibited.
"It's the first time we are able to show a mechanistic explanation for a clinical observation," said Dr. Yehuda Ringel, an assistant professor of medicine at the University of North Carolina at Chapel Hill. "It provides patients reassurance. They are not crazy, but there is a physiological explanation for why they experience more sensation."
Based on their study, Ringel and Dr. Doug Drossman, a professor of medicine and psychiatry at UNC, reported that the link between abuse and IBS-related pain can apply to other physical conditions. That link is well-known among clinicians, therapists, counselors and pain specialists. "It's something that we've seen for some time in victims of [abuse]," said Thomas Miller, emeritus professor of psychology at the University of Connecticut. "Individuals who complain of pain-related symptoms may have experienced other forms of pain."
Though the stigma associated with abuse, in which survivors are brushed off or their claims areminimized, is one of the strongest deterrents to reporting, survivors feel the need to voice that something is wrong. One woman was sexually abused by her mother's boyfriend between the ages of 5 and 8. Around that time, she developed stomach aches, extreme nausea and trouble eating food. "When I felt the pain in [my] abdomen, it reminded me of being assaulted. It's the same feeling," she said. "I was emotionally overwhelmed and it manifested physically. & I didn't want[food], I didn't want anything. I just wanted help."
This may be one of the reasons why people with a history of abuse frequently seek out treatmentfor physical ailments as adults. It is much easier to go to a doctor and get treated for a headachethan to face the stigma of having been abused. Gina Scaramella, executive director of the Boston Area Rape Crisis Center, said she once knew ayoung woman who was in so much emotional pain that she put a false cast on her arm so thatpeople would ask her what was wrong.
Survivors who do seek treatment can search in vain if their ailments are difficult to diagnose, and they often are. Such patients often suffer from nonspecific chronic pain conditions such asendometriosis, fibromyalgia, gastrointestinal problems, frequent headaches and joint pain. This woman was diagnosed with IBS, a notoriously indeterminate gastrointestinal problem, during her senior year of college after years of stomach pains, nausea and acid reflux.
She continues to experience pain sometimes because of her abuse history, which included forced oral sex. " That was the most traumatic of the abuse that I experienced. That's why I responded with such a strong sense of nausea." Ringel pointed out that the study did not show that a history of abuse leads to IBS, or any otherchronic pain problem. Nor did they suggest that people with IBS necessarily have a history ofabuse.
Rather, Ringel and Drossman were able to provide quantifiable data on how trauma can havelong-term effects on the brain, amplifying pain sensations. During a traumatic experience, the prefrontal cortex, the rational part of the brain, shuts down. Anything the body experiences after that time -- including fear, confusion, feeling out of controland physical pain -- is relayed directly to the emotion processing centers in the brain, creatingareas of hypersensitivity.
Later, pain can parallel those feelings. "When triggered & they can't reason themselves out of it," Drossman said. "You get this very primitive emotional reaction that you can't control. And that's exactly what patients tell you: 'I can't control it.'" And survivors of child abuse are less able to control their pain than other people. Children cannotprotect themselves mentally, the way an adult might during a traumatic experience, by trying to calm and distract themselves.
In addition, since the abuser is often a relative or friend, a child is more likely to have conflicted feelings toward their abuser and take the guilt and responsibilityfor the abuse upon themselves. Thus, the effects of abuse or other trauma are stronger and morelasting.
Though their sample size was small, Ringel and Drossman believe their study is representative and could help tip off doctors and therapists that a person who reports unusually intense amounts of pain for chronic problems may have a history of abuse. If so, including therapy in thetreatment options could be an effective way to ease both the mental and physical pain the person experiences. "We looked at the brain response before and after treatment," Ringel said. "These alterations in brain function are reversible with treatment. & This is where research needs to go."
She never told anyone close to her about her abuse until she told her husband one year afterthey were married. She also began therapy for her abuse history. "I think [the pain] did get a bit better, it stopped being this constant thing," she said, who will now share in cupcakes and goldfish crackers with her two daughters. "I really enjoy eating now, taking it to a place of being really healthy. I feel good about that.
"Copyright © 2008 ABC News Internet Ventures
Pain Processing in the Brain Is Affected by a History of Abuse
By RADHA CHITALEABC News Medical Unit
April 4, 2008 —About one in 50 infants in the United States experience abuse or neglect in the first year of life, according to a government report published this week. And experts say this maltreatment can also have serious health consequences later in life. "Kids unfortunately who are being maltreated show problems in brain development," said IleanaArias, director of the CDC National Center for Injury Prevention and Control, who, along with the Administration for Children and Families, created the report.
Maltreatment can begin "a trajectory of a number of negative outcomes, including health outcomes," according to Arias. Now, the mechanism behind those problems may have been pinned down. A recent study revealed a physiological connection between child abuse and feelings of intense pain. Researchers at UCLA and the University of North Carolina compared pain responses in agroup of women with and without irritable bowel syndrome (IBS), with surprising results.
In a test group of 20 women, 10 suffered from IBS and 10 did not. Both groups had people with a history of abuse, both physical and sexual. When subjected to mildly painful stimuli, the subjects with both IBS and a history of abuse reported feeling more intense pain than theircounterparts. In addition to self-reported data from the test subjects, the authors were able to document thepain experience using fMRI brain imaging. This data showed that the women who reported themost pain had heightened activity in the sensation and emotion regions of the brain. In addition, the brain areas that normally help to dampen negative sensations and emotions were inhibited.
"It's the first time we are able to show a mechanistic explanation for a clinical observation," said Dr. Yehuda Ringel, an assistant professor of medicine at the University of North Carolina at Chapel Hill. "It provides patients reassurance. They are not crazy, but there is a physiological explanation for why they experience more sensation."
Based on their study, Ringel and Dr. Doug Drossman, a professor of medicine and psychiatry at UNC, reported that the link between abuse and IBS-related pain can apply to other physical conditions. That link is well-known among clinicians, therapists, counselors and pain specialists. "It's something that we've seen for some time in victims of [abuse]," said Thomas Miller, emeritus professor of psychology at the University of Connecticut. "Individuals who complain of pain-related symptoms may have experienced other forms of pain."
Though the stigma associated with abuse, in which survivors are brushed off or their claims areminimized, is one of the strongest deterrents to reporting, survivors feel the need to voice that something is wrong. One woman was sexually abused by her mother's boyfriend between the ages of 5 and 8. Around that time, she developed stomach aches, extreme nausea and trouble eating food. "When I felt the pain in [my] abdomen, it reminded me of being assaulted. It's the same feeling," she said. "I was emotionally overwhelmed and it manifested physically. & I didn't want[food], I didn't want anything. I just wanted help."
This may be one of the reasons why people with a history of abuse frequently seek out treatmentfor physical ailments as adults. It is much easier to go to a doctor and get treated for a headachethan to face the stigma of having been abused. Gina Scaramella, executive director of the Boston Area Rape Crisis Center, said she once knew ayoung woman who was in so much emotional pain that she put a false cast on her arm so thatpeople would ask her what was wrong.
Survivors who do seek treatment can search in vain if their ailments are difficult to diagnose, and they often are. Such patients often suffer from nonspecific chronic pain conditions such asendometriosis, fibromyalgia, gastrointestinal problems, frequent headaches and joint pain. This woman was diagnosed with IBS, a notoriously indeterminate gastrointestinal problem, during her senior year of college after years of stomach pains, nausea and acid reflux.
She continues to experience pain sometimes because of her abuse history, which included forced oral sex. " That was the most traumatic of the abuse that I experienced. That's why I responded with such a strong sense of nausea." Ringel pointed out that the study did not show that a history of abuse leads to IBS, or any otherchronic pain problem. Nor did they suggest that people with IBS necessarily have a history ofabuse.
Rather, Ringel and Drossman were able to provide quantifiable data on how trauma can havelong-term effects on the brain, amplifying pain sensations. During a traumatic experience, the prefrontal cortex, the rational part of the brain, shuts down. Anything the body experiences after that time -- including fear, confusion, feeling out of controland physical pain -- is relayed directly to the emotion processing centers in the brain, creatingareas of hypersensitivity.
Later, pain can parallel those feelings. "When triggered & they can't reason themselves out of it," Drossman said. "You get this very primitive emotional reaction that you can't control. And that's exactly what patients tell you: 'I can't control it.'" And survivors of child abuse are less able to control their pain than other people. Children cannotprotect themselves mentally, the way an adult might during a traumatic experience, by trying to calm and distract themselves.
In addition, since the abuser is often a relative or friend, a child is more likely to have conflicted feelings toward their abuser and take the guilt and responsibilityfor the abuse upon themselves. Thus, the effects of abuse or other trauma are stronger and morelasting.
Though their sample size was small, Ringel and Drossman believe their study is representative and could help tip off doctors and therapists that a person who reports unusually intense amounts of pain for chronic problems may have a history of abuse. If so, including therapy in thetreatment options could be an effective way to ease both the mental and physical pain the person experiences. "We looked at the brain response before and after treatment," Ringel said. "These alterations in brain function are reversible with treatment. & This is where research needs to go."
She never told anyone close to her about her abuse until she told her husband one year afterthey were married. She also began therapy for her abuse history. "I think [the pain] did get a bit better, it stopped being this constant thing," she said, who will now share in cupcakes and goldfish crackers with her two daughters. "I really enjoy eating now, taking it to a place of being really healthy. I feel good about that.
"Copyright © 2008 ABC News Internet Ventures
