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Assessing recovery in middle cerebral artery stroke using functional MRI.

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Title: Assessing recovery in middle cerebral artery stroke using functional MRI.
Authors: Nair, D. G., Fuchs, A., Burkart, S., Steinberg, F. L., Kelso, J. A. S.
Source: Brain Injury. Dec2005, Vol. 19 Issue 13, p1165-1176. 12p. 7 Color Photographs, 3 Charts, 2 Graphs.
Subjects: Cerebrovascular disease, Cerebral arteries, Brain, Motor cortex, Neurophysiology, Medical rehabilitation
Abstract: Primary objective : To understand the temporal evolution of brain reorganization during recovery from stroke. Research design : A patient who suffered left middle cerebral artery stroke 9 months earlier was studied on three occasions, ∼⃒1 month apart. Methods and procedures : Brain activation was studied using functional Magnetic Resonance Imaging (fMRI). During each session, the patient performed a finger-to-thumb opposition task, which involved one bimanual and two unimanual conditions. Each condition consisted of overt movement of fingers and imagery of the same task. Results : With recovery, greater recruitment was observed of the affected primary motor cortex (M1) and a decrease in activation of the unaffected M1 and supplementary motor area. In addition, the widespread activation of brain areas seen during the initial session changed to a more focused pattern of activation as the patient recovered. Imagery tasks resulted in similar brain activity as overt execution pointing to imagery as a potential tool for rehabilitation. [ABSTRACT FROM AUTHOR]
Copyright of Brain Injury is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: <searchLink fieldCode="JN" term="%22Brain+Injury%22">Brain Injury</searchLink>. Dec2005, Vol. 19 Issue 13, p1165-1176. 12p. 7 Color Photographs, 3 Charts, 2 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Cerebrovascular+disease%22">Cerebrovascular disease</searchLink><br /><searchLink fieldCode="DE" term="%22Cerebral+arteries%22">Cerebral arteries</searchLink><br /><searchLink fieldCode="DE" term="%22Brain%22">Brain</searchLink><br /><searchLink fieldCode="DE" term="%22Motor+cortex%22">Motor cortex</searchLink><br /><searchLink fieldCode="DE" term="%22Neurophysiology%22">Neurophysiology</searchLink><br /><searchLink fieldCode="DE" term="%22Medical+rehabilitation%22">Medical rehabilitation</searchLink>
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  Data: Primary objective : To understand the temporal evolution of brain reorganization during recovery from stroke. Research design : A patient who suffered left middle cerebral artery stroke 9 months earlier was studied on three occasions, ∼⃒1 month apart. Methods and procedures : Brain activation was studied using functional Magnetic Resonance Imaging (fMRI). During each session, the patient performed a finger-to-thumb opposition task, which involved one bimanual and two unimanual conditions. Each condition consisted of overt movement of fingers and imagery of the same task. Results : With recovery, greater recruitment was observed of the affected primary motor cortex (M1) and a decrease in activation of the unaffected M1 and supplementary motor area. In addition, the widespread activation of brain areas seen during the initial session changed to a more focused pattern of activation as the patient recovered. Imagery tasks resulted in similar brain activity as overt execution pointing to imagery as a potential tool for rehabilitation. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Brain Injury is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Dec2005
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