Abstract:
:Functional magnetic resonance imaging (FMRI) detects signal changes in brain that accompany regional changes in neuronal activity. In normal human brain, FMRI shows changes in signal in the postcentral gyrus or superior temporal gyrus that correlate with voluntary motor activity or language processing, respectively. The model used to explain the changes in signal linked temporally with cerebral activity is a reduction in cerebral capillary deoxyhemoglobin concentration due to the increased blood flow that accompanies neuronal activity in the cerebrum. FMRI has been used in normal subjects but not extensively in patients. To determine the feasibility of using FMRI to map cerebral functions in patients with partial epilepsy syndromes, we performed a pilot study, using FMRI to identify signal changes in motor and language areas in response to tasks that activate those areas. Signal changes in epilepsy patients approximated those observed in volunteers. We conclude that FMRI can be developed as a method for functional cerebral mapping in partial epilepsies.
journal_name
Epilepsiajournal_title
Epilepsiaauthors
Morris GL 3rd,Mueller WM,Yetkin FZ,Haughton VM,Hammeke TA,Swanson S,Rao SM,Jesmanowicz A,Estkowski LD,Bandettini PAdoi
10.1111/j.1528-1157.1994.tb01788.xsubject
Has Abstract,Author List Incompletepub_date
1994-11-01 00:00:00pages
1194-8issue
6eissn
0013-9580issn
1528-1167journal_volume
35pub_type
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