Advances in understanding brain circuits responsible for tics in Tourette's shed light on disorder
SAN DIEGO, Oct. 24 -- Recent advances are producing a much greater understanding of the brain circuits responsible for the tics and problem behaviors seen in Tourette's syndrome. ...... In one groundbreaking study, investigators have for the first time measured the number of neurons in a particular area of the basal ganglia-the brain area involved in Tourette's-in patients with the disorder. Othe...Brain activity, including memory-processing, changes in Tourette syndrome
St. Louis, April 5, 2004 -- Scientists have known for years that abnormal activity involving a brain chemical called dopamine is somehow connected to the movements and vocalizations, or tics, associated with Tourette syndrome. Now neuroscience researchers at Washington University School of Medicine in St. Louis have found brain activity in these patients is abnormal during memory tasks, as well....Tourettes, other tic disorders far more common than once thought
One out of four students in special-education classes has a tic-related disorder like Tourette syndrome, and the rate of Tourettes among students in the general population is 50 to 75 times higher than has been traditionally thought by doctors, according to a study published in the Oct. 23 issue of the journal Neurology. ...... The neurologists who did the study say that Tourettes comes in many...New research on Tourette's syndrome
.PEOPLE who swear and twitch because they have Tourette's syndrome are more in.control of their actions than anyone realised. A psychologist in Canada has.found the first direct evidence that their tics are intentional, coordinated.movements made in response to some irresistible urge, rather than involuntary.spasms. . . The symptoms of Tourette's range from excessive twitching to extreme.....NEW YORK -- "Significant reduction" in Tourette syndrome symptoms was noted in a.study of nine affected adults after they received a medication not usually.prescribed for this neurologic disorder, according to data presented by Emory.University researchers at this week's 3rd International Scientific Symposium on.Tourette Syndrome. . Low doses of Tacrine hydrocloride reduced involuntar...What Makes Tics Tick? Clues Found In Tourette Twins' Caudates
For the first time, scientists have a neurobiological explanation for the ...variation in severity of tics in Tourette Syndrome. Researchers at the ...National Institute of Mental Health have traced such symptom differences ...to "supersensitivity" of certain neurotransmitter receptors in the ... brain structure responsible for carrying out automatic behaviors. ...They suggest that this dysfun...