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Washington D.C. [USA], Mar 24 : Analysing the brains of stroke patients just days after the stroke allows researchers to link various speech functions to different parts of the brain according to new research from Rice University and Baylor College of Medicine. This important breakthrough may lead to better treatment and recovery of the stroke patients.The study, 'Dissociation between frontal and temporal-parietal contributions to connected speech in acute stroke' will appear in an upcoming edition of the journal Brain.Study co-author Randi Martin, the Elma W. Schneider Professor of Psychology at Rice, worked with a team of researchers led by Tatiana Schnur, associate professor of neurosurgery and neuroscience at the Baylor College of Medicine, to evaluate the spontaneous language production of 65 stroke patients by using storytelling. For the experiment, the patients were read the story of Cinderella and were then asked to retell it.The researchers used a well-established process to score the patients -- the Quantitative Production Analysis method-- and relied on 13 different measures for evaluation, including words per minute, types of words, and sentence length and formation. They found that by evaluating patients between one- and 13-days post-stroke, they were able to identify how different and critical components related to language production linked up with different regions of the brain.The researchers used cutting-edge techniques to relate the brain areas damaged in each individual to the degree of their impairment on these language-production measures. Specifically, they found that retrieving words and putting them into increasingly complex sentences relied on the left temporal and parietal lobes, while producing grammatical aspects of sentences relied on the left frontal lobe.Martin noted there are only a few other studies that have looked at stroke patients in the acute stage, but those focused on the ability to produce single words rather than providing a detailed analysis of language production. The majority of studies, she said, look at stroke patients in the chronic stage of recovery, which is at least six months after the stroke. At that time, considerable reorgzation of language function in the brain may have occurred.Also, studying individuals at the acute stage allows for studying those with smaller areas of damage, she said. Those with small lesions are likely to recover and thus not included in studies of chronic stroke, and examining these people allows for a more precise mapping between areas damaged and language abilities."Many patients in the chronic stage of stroke have significantly worse brain damage than acute patients and have plateaued with their recovery," she said. "Their brains cannot be evaluated in the same way as acute stroke patients."Future work will look at these same individuals at different stages during their first year of the recovery process. One important issue will be to determine what areas of brain damage and what language abilities will predict performance a year after stroke.Martin hopes this work will help better understand how different brain regions recover from the stroke. She expects the work will be useful in the design of treatment options for stroke patients, including early interventions that may boost long-term recovery.( With inputs from ANI )

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:Study reveals analysing patients shortly after stroke can help link brain regions to speech functions

Researchers have found that analysing the brains of stroke patients just days after the stroke can help them link various speech functions to different parts of the brain. The recent study from Rice University and Baylor College of Medicine may lead ...

Health :Analysing patients shortly after stroke can help link brain regions to speech functions: Study

Analysing the brains of stroke patients just days after the stroke allows researchers to link various speech functions to different parts of the brain according to new research from Rice University and Baylor College of Medicine. This important break ...