4 research outputs found

    FMRI identification of eloquent language brain areas

    Get PDF
    Π€ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»Π½Π° ΠΌΠ°Π³Π½Π΅Ρ‚Π½Π° Ρ€Π΅Π·ΠΎΠ½Π°Π½Ρ†Π° (Ρ„ΠœΠ ), Ρƒ послСдњој Π΄Π΅Ρ†Π΅Π½ΠΈΡ˜ΠΈ Π΄Π°Π»Π° јС Π·Π½Π°Ρ‡Π°Ρ˜Π°Π½ допринос Ρƒ ΠΈΡΠΏΠΈΡ‚ΠΈΠ²Π°ΡšΡƒ Ρ€Π°Π·Π»ΠΈΡ‡ΠΈΡ‚ΠΈΡ… аспСката ΠΌΠΎΠΆΠ΄Π°Π½ΠΈΡ… Ρ„ΡƒΠ½ΠΊΡ†ΠΈΡ˜Π° ΠΊΠ°ΠΊΠΎ ΠΊΠΎΠ΄ Π·Π΄Ρ€Π°Π²ΠΎΠ³ ΠΌΠΎΠ·Π³Π° Ρ‚Π°ΠΊΠΎ ΠΈ Ρƒ Ρ€Π°Π·Π»ΠΈΡ‡ΠΈΡ‚ΠΈΠΌ ΠΏΠ°Ρ‚ΠΎΠ»ΠΎΡˆΠΊΠΈΠΌ ΡΡ‚Π°ΡšΠΈΠΌΠ°. Π‘Π²Ρ€Ρ…Π° ΠΎΠ²Π΅ Π΄ΠΈΡΠ΅Ρ€Ρ‚Π°Ρ†ΠΈΡ˜Π΅ Π±ΠΈΠ»Π° јС Π΄Π° испита могућности Ρ„ΠœΠ  Ρƒ Π΄Π΅Ρ‚Π΅ΠΊΡ†ΠΈΡ˜ΠΈ Π΅Π»ΠΎΠΊΠ²Π΅Π½Ρ‚Π½ΠΈΡ… Π³ΠΎΠ²ΠΎΡ€Π½ΠΈΡ… ΠΌΠΎΠΆΠ΄Π°Π½ΠΈΡ… Π·ΠΎΠ½Π° ΠΊΠ°ΠΊΠΎ ΠΊΠΎΠ΄ Π·Π΄Ρ€Π°Π²ΠΈΡ… Π²ΠΎΠ»ΠΎΠ½Ρ‚Π΅Ρ€Π° Ρ‚Π°ΠΊΠΎ ΠΈ ΠΊΠΎΠ΄ ΠΏΠ°Ρ†ΠΈΡ˜Π΅Π½Π°Ρ‚Π° са Ρ‚ΡƒΠΌΠΎΡ€ΠΈΠΌΠ° ΠΌΠΎΠ·Π³Π°. Π£ Π³Ρ€ΡƒΠΏΠΈ Π·Π΄Ρ€Π°Π²ΠΈΡ… Π²ΠΎΠ»ΠΎΠ½Ρ‚Π΅Ρ€Π° Π±ΠΈΠ»ΠΎ јС 12 испитаника, 6 ΠΌΡƒΡˆΠΊΠ°Ρ€Π°Ρ†Π° ΠΈ 6 ΠΆΠ΅Π½Π°. Π“Ρ€ΡƒΠΏΡƒ ΠΏΠ°Ρ†ΠΈΡ˜Π΅Π½Π°Ρ‚Π° Ρ‡ΠΈΠ½ΠΈΠ»ΠΎ јС 17 испитаника (9 ΠΌΡƒΡˆΠΊΠ°Ρ€Π°Ρ†Π° ΠΈ 8 ΠΆΠ΅Π½Π°) са Ρ‚ΡƒΠΌΠΎΡ€ΠΈΠΌΠ° ΠΌΠΎΠ·Π³Π° Код свих испитаника Π½Π°Ρ‡ΠΈΡšΠ΅Π½ΠΈ су Ρ„ΠœΠ  снимци Π΅Π½Π΄ΠΎΠΊΡ€Π°Π½ΠΈΡ˜ΡƒΠΌΠ° Π·Π° Π΄Π²Π° Ρ€Π°Π·Π»ΠΈΡ‡ΠΈΡ‚Π° стимулуса Π±Ρ€ΠΎΡ˜Π°ΡšΠ΅ Ρƒ Π½Π°ΠΏΡ€Π΅Π΄ ΠΈ Π±Ρ€ΠΎΡ˜Π°ΡšΠ΅ Ρƒ Π½Π°Π·Π°Π΄, Π° ΠΏΠΎΡ‚ΠΎΠΌ су Π½Π°Ρ‡ΠΈΡšΠ΅Π½Π΅ Ρ„ΠœΠ  ΠΌΠ°ΠΏΠ΅ Π°ΠΊΡ‚ΠΈΠ²ΠΈΡ€Π°Π½ΠΈΡ… ΠΌΠΎΠΆΠ΄Π°Π½ΠΈΡ… Π·ΠΎΠ½Π°. ΠŸΠΎΡ€Π΅Π΄ Ρ‚ΠΎΠ³Π° Π½Π°Ρ‡ΠΈΡšΠ΅Π½Π΅ су ΠΈ Π³Ρ€ΡƒΠΏΠ½Π΅ Π°Π½Π°Π»ΠΈΠ·Π΅ Π·Π° Π·Π΄Ρ€Π°Π²Π΅ испитаникС ΠΈ испитаникС са Ρ‚ΡƒΠΌΠΎΡ€ΠΈΠΌΠ° ΠΌΠΎΠ·Π³Π° ΠΊΠ°ΠΎ ΠΈ Π³Ρ€ΡƒΠΏΠ½Π΅ Π°Π½Π°Π»ΠΈΠ·Π΅ ΠΏΡ€Π΅ΠΌΠ° ΠΏΠΎΠ»Ρƒ Ρƒ ΠΎΠ²ΠΈΡ€Ρƒ ΠΎΠ±Π΅ Π³Ρ€ΡƒΠΏΠ΅ испитаника. Π—Π° свС испитаникС ΠΈ ΠΎΠ±Π° стимулуса ΠΈΠ·Ρ€Π°Ρ‡ΡƒΠ½Π°Ρ‚ јС индСкс Π»Π°Ρ‚Π΅Ρ€Π°Π»ΠΈΠ·Π°Ρ†ΠΈΡ˜Π΅ Π³ΠΎΠ²ΠΎΡ€Π°. Код Π·Π΄Ρ€Π°Π²ΠΈΡ… испитаника Π½Π° Π·Π°Π΄Π°Ρ‚Π΅ стимулусС Π°ΠΊΡ‚ΠΈΠ²ΠΈΡ€Π°Π½Π° јС дистрибуирана ΠΌΡ€Π΅ΠΆΠ° ΠΌΠΎΠΆΠ΄Π°Π½ΠΈΡ… Π·ΠΎΠ½Π° која јС осим канонских Π³ΠΎΠ²ΠΎΡ€Π½ΠΈΡ… Π·ΠΎΠ½Π° Ρƒ ΠΈΠ½Ρ„Π΅Ρ€ΠΈΠΎΡ€Π½ΠΎΠΌ Ρ„Ρ€ΠΎΠ½Ρ‚Π°Π»Π½ΠΎΠΌ гирусу (Π˜Π€Π“) ΠΈ супСриорном Ρ‚Π΅ΠΌΠΏΠΎΡ€Π°Π»Π½ΠΎΠΌ гирусу (Π‘Π’Π“) ΠΏΠΎΠ΄Ρ€Π°Π·ΡƒΠΌΠ΅Π²Π°Π»Π° ΠΈ активност Ρƒ ΠΏΡ€ΠΈΠΌΠ°Ρ€Π½ΠΈΠΌ ΠΌΠΎΡ‚ΠΎΡ€Π½ΠΈΠΌ Π·ΠΎΠ½Π°ΠΌΠ°, ΡΡƒΠΏΠ»Π΅ΠΌΠ΅Π½Ρ‚Π½ΠΎΡ˜ ΠΌΠΎΡ‚ΠΎΡ€Π½ΠΎΡ˜ Π·ΠΎΠ½ΠΈ, ΠΏΡ€Π΅Ρ„Ρ€ΠΎΠ½Ρ‚Π°Π»Π½ΠΈΠΌ Ρ€Π΅Π³ΠΈΡ˜Π°ΠΌΠ°, Ρ†Π΅Ρ€Π΅Π±Π΅Π»ΡƒΠΌΡƒ ΠΈ мСдијалним аспСктима Ρ‚Π΅ΠΌΠΏΠΎΡ€Π°Π»Π½ΠΎΠ³ Ρ€Π΅ΠΆΡšΠ° Π° ΡƒΠΎΡ‡Π΅Π½Π΅ су ΠΎΠ΄Ρ€Π΅Ρ’Π΅Π½Π΅ Ρ€Π°Π·Π»ΠΈΠΊΠ΅ Ρƒ ΠΎΠ΄Π³ΠΎΠ²ΠΎΡ€Ρƒ Π½Π° Π·Π°Π΄Π°Ρ‚Π΅ стимулусС ΠΈΠ·ΠΌΠ΅Ρ’Ρƒ ΠΌΡƒΡˆΠΊΠ°Ρ€Π°Ρ†Π° ΠΈ ΠΆΠ΅Π½Π°. ИндСкс Π»Π°Ρ‚Π΅Ρ€Π°Π»ΠΈΠ·Π°Ρ†ΠΈΡ˜Π΅ Π±ΠΈΠΎ јС Ρƒ складу са ΠΏΡ€ΠΎΡ†Π΅Π½ΠΎΠΌ Π»Π°Ρ‚Π΅Ρ€Π°Π»ΠΈΠ·Π°Ρ†ΠΈΡ˜Π΅ Π³ΠΎΠ²ΠΎΡ€Π° Π·Π° свС посматранС Π·Π΄Ρ€Π°Π²Π΅ испитаникС. Код испитаника са Ρ‚ΡƒΠΌΠΎΡ€ΠΈΠΌΠ° ΠΌΠΎΠ·Π³Π° осим ΠΏΡ€ΠΈΠΌΠ°Ρ€Π½ΠΈΡ… Π³ΠΎΠ²ΠΎΡ€Π½ΠΈΡ… Π·ΠΎΠ½Π° Ρƒ Π˜Π€Π“ ΠΈ Π‘Π’Π“ ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ„ΠΈΠΊΠΎΠ²Π°Π½Π° јС активност Ρƒ ΠΏΡ€ΠΈΠΌΠ°Ρ€Π½ΠΈΠΌ ΠΌΠΎΡ‚ΠΎΡ€Π½ΠΈΠΌ Π·ΠΎΠ½Π°ΠΌΠ°, ΠΏΡ€Π΅Ρ„Ρ€ΠΎΠ½Ρ‚Π°Π»Π½ΠΈΠΌ Ρ€Π΅Π³ΠΈΡ˜Π°ΠΌΠ°, Ρ†Π΅Ρ€Π΅Π±Π΅Π»ΡƒΠΌΡƒ ΠΈ Ρƒ мСдијалним аспСктима Ρ‚Π΅ΠΌΠΏΠΎΡ€Π°Π»Π½ΠΎΠ³ Ρ€Π΅ΠΆΡšΠ°...Functional magnetic resonance imaging (fMRI), in the last decade, has made significant contributions in the study of various brain functions in the healthy brain and in different pathological brain conditions as well. The purpose of this thesis was to explore the possibilities of fMRI in detection of eloquent language cortex in healthy volunteers and patients with brain tumors. In the group of healthy volunteers there were 12 subjects, 6 males and 6 females. In the patient group there were 17 patients, (9 males and 8 females) with brain tumors. For all participants fMR exam was made for two different stimuli, counting forward and counting backward. After that fMR maps of activated brain areas were made. In addition, group analysis for healthy individuals and patient with brain tumors were made, as well as group analysis according to gender for both groups. For all subjects and both stimulus laterality index was calculated. In healthy subject for both stimulus distributed network of cortical areas were detected. Besides of canonical language areas in inferior frontal gyrus (IFG) and superior temporal girus (STG), activation in primary motor areas, supplementary motor areas, prefrontal region, cerebellum and medial temporal region were detected. There were some differences in response to given stimuli between females and males. Laterality index was consistent with the assessment of speech lateralization in all observed healthy subjects. In patients with brain tumors besides the brain areas identified in healthy volunteers, additional activity was observed in sensory motor areas, the occipital and parietal region. There were certain differences in brain responses for given stimuli between females and males in this group as well. Laterality index in patients with brain tumors were only partially in line with the evaluation of language lateralization in this group..
    corecore