title: Language and motor FMRI activation in polymicrogyric cortex.
abstract: OBJECTIVE
  To analyze the patterns of brain activation in polymicrogyric cortex in epilepsy patients by blood oxygenation level-dependent (BOLD) functional MRI (fMRI), during language and motor activation tasks.
  
  
  METHODS
  Five patients with extratemporal epilepsy associated with polymicrogyria were scanned in a 1.5-T Siemens scanner with BOLD fMRI sequences, by following language and motor paradigms. Functional images were processed by using Brain Voyager software.
  
  
  RESULTS
  Activation of polymicrogyric cortex in the brain area that corresponds to the motor strip was present in all patients. Language studies revealed activation of polymicrogyric cortex over Broca's area in three cases.
  
  
  CONCLUSIONS
  Functionality was shown in polymicrogyric areas. Therefore if surgical resection is indicated, a careful functional planning is necessary because of functionality of the polymicrogyric cortex.
authors.affiliation: Department of Neurology-FMRP, University of Sao Paulo, Ribeirao Preto, Brazil.
authors.forename: David
authors.initials: D
authors.lastname: Araujo
authors.forename: Draulio B
authors.initials: DB
authors.lastname: de Araujo
authors.forename: Octavio M
authors.initials: OM
authors.lastname: Pontes-Neto
authors.forename: Sara
authors.initials: S
authors.lastname: Escorsi-Rosset
authors.forename: Gustavo N
authors.initials: GN
authors.lastname: Simao
authors.forename: Lauro
authors.initials: L
authors.lastname: Wichert-Ana
authors.forename: Tonicarlo R
authors.initials: TR
authors.lastname: Velasco
authors.forename: Americo C
authors.initials: AC
authors.lastname: Sakamoto
authors.forename: Joao P
authors.initials: JP
authors.lastname: Leite
authors.forename: Antonio C
authors.initials: AC
authors.lastname: Santos
mesh_terms: D000328:Adult; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000002:abnormalities* / Q000503:physiopathology* / Q000601:surgery; D004827:Epilepsy / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery; D005260:Female; D005625:Frontal Lobe / Q000503:physiopathology; D006801:Humans; D007804:Language Development; D008279:Magnetic Resonance Imaging / Q000379:methods / Q000706:statistics & numerical data; D008297:Male; D009043:Motor Activity / Q000502:physiology; D009044:Motor Cortex / Q000503:physiopathology; D009483:Neuropsychological Tests; D010100:Oxygen / Q000097:blood; D010347:Patient Care Planning; D011300:Preoperative Care; D011597:Psychomotor Performance / Q000502:physiology*; D012189:Retrospective Studies; D013850:Thinking / Q000502:physiology
chemical_list: D010100:Oxygen