4 research outputs found

    Specific features of Bazhenov suite sediments in south-eastern Nurolsk sedimentary basin (Tomsk Oblast)

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    The specific sediment features in Georgiev (J[3]kmgr), Bazhenov (J3vbg) and Kulomzin (K1bkl) suites, exposed by drilling in the S-E Nurolsk depression (Tomsk Oblast), were defined and described via petrographic, X-ray diffraction and fluorescence-microscopy analysis methods. The classification of agrillites was identified, the structure-texture features, composition, voids and bitumen types and their distribution were determined. It was defined that Bazhenov suite argillites are characteristic of fine-dispersion, high biogenic silica content and scattered organic matter, enriched multi-composite syngenetic bitumen (from light to resin-asphaltine), as well as fractured surface where the migration of light bitumen occurs

    ΠšΠΎΠ½ΡΡ‚Ρ€ΡƒΠΊΡ†ΠΈΡ, мСсто ΠΈ клиничСская ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΈΠ½Ρ‚Π΅Ρ€Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΠΉ Ρ‚Π΅Ρ€Π°ΠΏΠΈΠΈ (стимуляции) ΠΌΠΎΠ·Π³Π° ΠΏΡ€ΠΈ цСрСброваскулярной ΠΏΠ°Ρ‚ΠΎΠ»ΠΎΠ³ΠΈΠΈ

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    Highlights. Interactive brain stimulation is the next step in neurofeedback technology, it implies the possibility of volitional regulation of the hemodynamic response of specific brain region in order to transform entire brain network and obtain the desired clinical and behavioral dynamics in patients (subjects). One of the indications for using the technology is post-stroke movements disorders when the volitional influence is focused on the motor area of the brain.Background. Neurofeedback and closely related concepts of neural interface system and β€œinteractive brain” are considered as the foundation for developing algorithms for controlling neuroplasticity. Interactive brain therapy (stimulation) is a recently developed type of neurofeedback therapy, which implies dependence of feedback on a hemodynamic response signal recorded by functional magnetic resonance imaging (fMRI). The technology focuses on the region of interest with good accuracy and enables teaching the subject to control the activity of both individual cerebral structures and the functional connectivity between them, causing behavioral metamorphoses.Aim. To demonstrate the study design involving interactive stimulation of secondary motor areas of the brain using a bimodal fMRI-electroencephalography platform, and to describe the dynamics of the motor networks during treatment in patients with hemiparesis in the early period of recovery from stroke.Methods. The study involved 11 patients who were trained to regulate the activity of the secondary motor area and premotor cortex of the affected hemisphere, receiving feedback on the fMRI signal and the activity of the mu- (8–13 Hz) and beta2 (18–26 Hz) EEG ranges of the areas of interest. The block-designed training consisted of 6 sessions (imagination of movement – rest) with an interval of 2–3 days. During treatment the dynamics of the hemodynamic response of the areas of interest was analyzed. In test sessions (before treatment, immediately after the end, and six months later) functional connections within the motor network were reconstructed and hand function was assessed (grip strength, Fugle-Meyer Assessment, Box and Blocks test).Results. Upon completion of treatment, an increase in grip strength and dexterity was achieved; there was an increase in the fMRI signal of the premotor cortex of the ipsilateral hemisphere, and a strengthening of the interhemispheric functional connectivity of the secondary motor areas.Conclusion. fMRI and the interactive brain therapy technology built on its basis, on the one hand, provide the technological foundation for the β€œinteractive brain” and the transformation of spontaneous neuroplasticity into a controlled one, and on the other hand, serve as an important tool for monitoring the process of restructuring of cerebral networks after a stroke, providing the ability to record the emergence (or disappearance) of connectivity between brain regions, and to measure its strength in dynamics, that is, to give a numerical description of neuroplasticity.ΠžΡΠ½ΠΎΠ²Π½Ρ‹Π΅ полоТСния. Π˜Π½Ρ‚Π΅Ρ€Π°ΠΊΡ‚ΠΈΠ²Π½Π°Ρ стимуляция ΠΌΠΎΠ·Π³Π° – Ρ€Π°Π·Π²ΠΈΡ‚ΠΈΠ΅ Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ нСйробиоуправлСния, ΠΏΠΎΠ΄Ρ€Π°Π·ΡƒΠΌΠ΅Π²Π°ΡŽΡ‰Π΅Π΅ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ Π²ΠΎΠ»Π΅Π²ΠΎΠ³ΠΎ рСгулирования гСмодинамичСского ΠΎΡ‚ΠΊΠ»ΠΈΠΊΠ° ΠΊΠΎΠ½ΠΊΡ€Π΅Ρ‚Π½Ρ‹Ρ… структур ΠΌΠΎΠ·Π³Π° с Ρ†Π΅Π»ΡŒΡŽ измСнСния ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² активности Ρ†Π΅Ρ€Π΅Π±Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… сСтСй ΠΈ достиТСния ΠΆΠ΅Π»Π°Π΅ΠΌΠΎΠΉ клиничСской ΠΈ повСдСнчСской Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠΈ Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² (испытуСмых). Одним ΠΈΠ· ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΈΠΉ ΠΊ ΠΏΡ€ΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡŽ Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΡΠ²Π»ΡΡŽΡ‚ΡΡ Π΄Π²ΠΈΠ³Π°Ρ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ Π½Π°Ρ€ΡƒΡˆΠ΅Π½ΠΈΡ вслСдствиС ΠΈΠ½ΡΡƒΠ»ΡŒΡ‚Π°; Π² этом случаС фокус Π²ΠΎΠ»Π΅Π²ΠΎΠ³ΠΎ воздСйствия Π½Π°ΠΏΡ€Π°Π²Π»Π΅Π½ Π½Π° ΠΌΠΎΡ‚ΠΎΡ€Π½Ρ‹Π΅ области ΠΌΠΎΠ·Π³Π°.ΠΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ. НСйробиоуправлСниС ΠΈ тСсно связанныС с Π½ΠΈΠΌ интСрфСйсы Β«ΠΌΠΎΠ·Π³ – ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€Β» Ρ€Π°ΡΡΠΌΠ°Ρ‚Ρ€ΠΈΠ²Π°ΡŽΡ‚ ΠΊΠ°ΠΊ Π±Π°Π·Ρƒ для создания Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌΠΎΠ² управляСмой нСйропластичности. Π˜Π½Ρ‚Π΅Ρ€Π°ΠΊΡ‚ΠΈΠ²Π½Π°Ρ тСрапия (стимуляция) ΠΌΠΎΠ·Π³Π° – Π½Π΅Π΄Π°Π²Π½ΠΎ ΡΡ„ΠΎΡ€ΠΌΠΈΡ€ΠΎΠ²Π°Π²ΡˆΠ°ΡΡΡ ΠΌΠΎΠ΄Π°Π»ΡŒΠ½ΠΎΡΡ‚ΡŒ нСйробиоуправлСния, ΠΏΠΎΠ΄Ρ€Π°Π·ΡƒΠΌΠ΅Π²Π°ΡŽΡ‰Π°Ρ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡ‚ΡŒ ΠΎΠ±Ρ€Π°Ρ‚Π½ΠΎΠΉ связи ΠΎΡ‚ сигнала гСмодинамичСского ΠΎΡ‚ΠΊΠ»ΠΈΠΊΠ°, рСгистрируСмого срСдствами Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΉ ΠΌΠ°Π³Π½ΠΈΡ‚Π½ΠΎ-рСзонансной Ρ‚ΠΎΠΌΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ (Ρ„ΠœΠ Π’). ВСхнология позволяСт с высокой Ρ‚ΠΎΡ‡Π½ΠΎΡΡ‚ΡŒΡŽ Ρ„ΠΎΠΊΡƒΡΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒΡΡ Π½Π° Ρ€Π΅Π³ΠΈΠΎΠ½Π΅ интСрСса ΠΈ ΠΎΠ±ΡƒΡ‡ΠΈΡ‚ΡŒ ΡΡƒΠ±ΡŠΠ΅ΠΊΡ‚Π° ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŽ ΠΊΠ°ΠΊ активности ΠΎΡ‚Π΄Π΅Π»ΡŒΠ½Ρ‹Ρ… Ρ†Π΅Ρ€Π΅Π±Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… структур, Ρ‚Π°ΠΊ ΠΈ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΉ связности ΠΌΠ΅ΠΆΠ΄Ρƒ Π½ΠΈΠΌΠΈ с ΠΈΠ½ΠΈΡ†ΠΈΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ повСдСнчСских ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠΉ.ЦСль. ΠŸΡ€ΠΎΠ΄Π΅ΠΌΠΎΠ½ΡΡ‚Ρ€ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Π΄ΠΈΠ·Π°ΠΉΠ½ экспСримСнта с ΠΈΠ½Ρ‚Π΅Ρ€Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΠΉ стимуляциСй Π²Ρ‚ΠΎΡ€ΠΈΡ‡Π½Ρ‹Ρ… ΠΌΠΎΡ‚ΠΎΡ€Π½Ρ‹Ρ… Π·ΠΎΠ½ ΠΌΠΎΠ·Π³Π° Π½Π° бимодальной Ρ„ΠœΠ Π’-элСктроэнцСфалографии ΠΏΠ»Π°Ρ‚Ρ„ΠΎΡ€ΠΌΠ΅ ΠΈ ΠΎΠΏΠΈΡΠ°Ρ‚ΡŒ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΡƒ ΠΌΠΎΡ‚ΠΎΡ€Π½ΠΎΠΉ сСти Π² Ρ…ΠΎΠ΄Π΅ лСчСния Π½Π° Ρ€Π΅ΠΏΡ€Π΅Π·Π΅Π½Ρ‚Π°Ρ‚ΠΈΠ²Π½ΠΎΠΌ ΠΏΡ€ΠΈΠΌΠ΅Ρ€Π΅ больного с Π³Π΅ΠΌΠΈΠΏΠ°Ρ€Π΅Π·ΠΎΠΌ Π² Ρ€Π°Π½Π½Π΅ΠΌ Π²ΠΎΡΡΡ‚Π°Π½ΠΎΠ²ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΌ ΠΏΠ΅Ρ€ΠΈΠΎΠ΄Π΅ ΠΈΠ½ΡΡƒΠ»ΡŒΡ‚Π°.ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹. 11 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² ΠΎΠ±ΡƒΡ‡Π°Π»ΠΈΡΡŒ Ρ€Π΅Π³ΡƒΠ»ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠΉ ΠΌΠΎΡ‚ΠΎΡ€Π½ΠΎΠΉ области ΠΈ ΠΏΡ€Π΅ΠΌΠΎΡ‚ΠΎΡ€Π½ΠΎΠΉ ΠΊΠΎΡ€Ρ‹ ΠΏΠΎΡ€Π°ΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ ΠΏΠΎΠ»ΡƒΡˆΠ°Ρ€ΠΈΡ, получая ΠΎΠ±Ρ€Π°Ρ‚Π½ΡƒΡŽ связь ΠΏΠΎ сигналу Ρ„ΠœΠ Π’ ΠΈ активности мю-Ρ€ΠΈΡ‚ΠΌΠ° (8–13 Π“Ρ†) ΠΈ Π±Π΅Ρ‚Π°-2-Ρ€ΠΈΡ‚ΠΌΠ° (18–26 Π“Ρ†) элСктроэнцСфалографии Π² Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… отвСдСниях. ΠšΡƒΡ€Ρ состоял ΠΈΠ· 6 сСссий Π² Π±Π»ΠΎΡ‡Π½ΠΎΠΌ Π΄ΠΈΠ·Π°ΠΉΠ½Π΅ (Π²ΠΎΠΎΠ±Ρ€Π°ΠΆΠ΅Π½ΠΈΠ΅ двиТСния Ρ‡Π΅Ρ€Π΅Π΄ΠΎΠ²Π°Π»ΠΎΡΡŒ с ΠΎΡ‚Π΄Ρ‹Ρ…ΠΎΠΌ) с ΠΈΠ½Ρ‚Π΅Ρ€Π²Π°Π»ΠΎΠΌ Π² 2–3 дня. Π’ Ρ…ΠΎΠ΄Π΅ лСчСния ΠΈΠ·ΡƒΡ‡Π΅Π½Π° Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° Π°ΠΊΡ‚ΠΈΠ²Π°Ρ†ΠΈΠΈ Π·ΠΎΠ½ интСрСса. Π’ тСстовых сСссиях (Π΄ΠΎ лСчСния, сразу ΠΏΠΎ Π΅Π³ΠΎ ΠΎΠΊΠΎΠ½Ρ‡Π°Π½ΠΈΠΈ ΠΈ Ρ‡Π΅Ρ€Π΅Π· ΠΏΠΎΠ»Π³ΠΎΠ΄Π° послС Π·Π°Π²Π΅Ρ€ΡˆΠ΅Π½ΠΈΡ курса) ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½Π° рСконструкция Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½Ρ‹Ρ… связСй Π²Π½ΡƒΡ‚Ρ€ΠΈ ΠΌΠΎΡ‚ΠΎΡ€Π½ΠΎΠΉ Ρ†Π΅Ρ€Π΅Π±Ρ€Π°Π»ΡŒΠ½ΠΎΠΉ сСти ΠΈ ΠΎΡ†Π΅Π½Π΅Π½Π° функция Ρ€ΡƒΠΊΠΈ (динамомСтрия Ρ…Π²Π°Ρ‚Π°, шкала Π€ΡƒΠ³Π»-ΠœΠ°ΠΉΠ΅Ρ€Π°, тСст Box and Block).Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. По Π·Π°Π²Π΅Ρ€ΡˆΠ΅Π½ΠΈΠΈ лСчСния достигнуто ΡƒΠ²Π΅Π»ΠΈΡ‡Π΅Π½ΠΈΠ΅ силы ΠΈ ловкости Ρ€ΡƒΠΊΠΈ; ΠΎΡ‚ΠΌΠ΅Ρ‡Π΅Π½Ρ‹ усилСниС Ρ„ΠœΠ Π’-сигнала ΠΏΡ€Π΅ΠΌΠΎΡ‚ΠΎΡ€Π½ΠΎΠΉ ΠΊΠΎΡ€Ρ‹ ΠΈΠΏΡΠΈΠ»Π°Ρ‚Π΅Ρ€Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ»ΡƒΡˆΠ°Ρ€ΠΈΡ ΠΈ ΡƒΠΊΡ€Π΅ΠΏΠ»Π΅Π½ΠΈΠ΅ ΠΌΠ΅ΠΆΠΏΠΎΠ»ΡƒΡˆΠ°Ρ€Π½ΠΎΠΉ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠΉ связности Π²Ρ‚ΠΎΡ€ΠΈΡ‡Π½Ρ‹Ρ… ΠΌΠΎΡ‚ΠΎΡ€Π½Ρ‹Ρ… Π·ΠΎΠ½.Π—Π°ΠΊΠ»ΡŽΡ‡Π΅Π½ΠΈΠ΅. Π’Π°ΠΊΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ, Ρ„ΠœΠ Π’ ΠΈ построСнная Π½Π° Π΅Π΅ основС тСхнология ΠΈΠ½Ρ‚Π΅Ρ€Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΠΉ стимуляции ΠΌΠΎΠ·Π³Π°, с ΠΎΠ΄Π½ΠΎΠΉ стороны, ΠΎΠ±Π΅ΡΠΏΠ΅Ρ‡ΠΈΠ²Π°ΡŽΡ‚ Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³ΠΈΡ‡Π΅ΡΠΊΡƒΡŽ основу для ΠΏΠ΅Ρ€Π΅Π²ΠΎΠ΄Π° спонтанной нСйропластичности Π² ΡƒΠΏΡ€Π°Π²Π»ΡΠ΅ΠΌΡƒΡŽ Π² интСрСсах Π±ΠΎΠ»Π΅Π΅ ΠΏΠΎΠ»Π½ΠΎΠΉ Ρ€Π΅Π°Π±ΠΈΠ»ΠΈΡ‚Π°Ρ†ΠΈΠΈ ΠΏΠΎΡΡ‚ΠΈΠ½ΡΡƒΠ»ΡŒΡ‚Π½ΠΎΠ³ΠΎ Π΄Π΅Ρ„Π΅ΠΊΡ‚Π°. Π‘ Π΄Ρ€ΡƒΠ³ΠΎΠΉ – Ρ„ΠœΠ Π’-ΠΌΠΎΠ½ΠΈΡ‚ΠΎΡ€ΠΈΠ½Π³ слуТит Π²Π°ΠΆΠ½Ρ‹ΠΌ инструмСнтом наблюдСния Π·Π° процСссом пСрСстройки Ρ†Π΅Ρ€Π΅Π±Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… сСтСй послС ΠΈΠ½ΡΡƒΠ»ΡŒΡ‚Π°, обСспСчивая Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ ΠΈΠ·ΠΌΠ΅Ρ€ΡΡ‚ΡŒ Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΡƒΡŽ ΡΠ²ΡΠ·Π½ΠΎΡΡ‚ΡŒ Π² Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ΅, Ρ‚ΠΎ Π΅ΡΡ‚ΡŒ Π΄Π°Π²Π°Ρ‚ΡŒ Ρ‡ΠΈΡΠ»Π΅Π½Π½ΡƒΡŽ характСристику нСйропластичности
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