Ihame rya EEG?

Igisekuru no gufata amajwi ya EEG:

EEG iboneka muri electrode hejuru yumutwe.Uburyo bwo kubyara igihanga gishobora kwizerwa muri rusange: iyo bucecetse, dendrite ya apical ya selile piramide - selile yose iri mumirongo yumubiri wa selile iba muburyo bwa polarisi;iyo impulse yandujwe kumpera imwe ya selile, itera iherezo kuba depolarisale.Itandukaniro rishobora gutandukana muri selile irema bipolar amashanyarazi yumurongo wa sisitemu, hamwe numuyoboro utemba uva kumutwe ujya kurundi.Kubera ko cytoplazme hamwe n'amazi adasanzwe arimo electrolytite, amashanyarazi nayo anyura hanze ya selile.Iki gikorwa cyamashanyarazi kirashobora kwandikwa ukoresheje electrode yumutwe.Mubyukuri, impinduka zishobora kuba muri EEG kumutwe ni ihuriro ryamashanyarazi menshi ya bipolar.EEG ntigaragaza ibikorwa byamashanyarazi yingirabuzimafatizo, ahubwo yandika igiteranyo cyibikorwa byamashanyarazi yitsinda ryinshi ryingirabuzimafatizo mu karere k'ubwonko kagereranywa na electrode.
Ibice shingiro bya EEG: Imiterere ya EEG ntisanzwe, kandi inshuro zayo zirahinduka mugihe kingana ninshuro 1 kugeza 30 kumasegonda.Mubisanzwe iyi mpinduka yumurongo igabanijwemo imirongo 4: inshuro ya delta yumurongo ni 0.5 kugeza 3./ amasegonda, amplitude ni microvolts 20-200, abantu bakuru basanzwe barashobora kwandika gusa uyu muhengeri mugihe basinziriye cyane;inshuro yumurongo wa tta ni inshuro 4-7 kumasegonda, naho amplitude igera kuri microvolts 100-150, abantu bakuru bakunze gusinzira Uyu muhengeri urashobora kwandikwa;imiraba ya tta na delta hamwe hamwe byitwa imiraba itinda, kandi umuraba wa delta hamwe na tta waves ntabwo byanditswe mubantu basanzwe bakangutse;inshuro ya alpha waves ni inshuro 8 kugeza kuri 13 kumasegonda, naho amplitude ni microvolts 20 kugeza 100.Nibisanzwe byibanze byubwonko busanzwe bwabantu bakuze, bibaho iyo amaso akangutse agafunga;inshuro ya beta waves ni 14 kugeza 30 kumasegonda, naho amplitude ni microvolts 5 kugeza 20.Ingano yibitekerezo iragutse, kandi isura ya beta waves muri rusange yerekana ko ubwonko bwubwonko bumeze neza.EEG y'abana basanzwe itandukanye n'iy'abantu bakuru.Neonates yiganjemo umuvuduko muke wa amplitude, kandi inshuro zubwonko bwubwonko zigenda ziyongera uko imyaka igenda ishira.
Waveα umuraba: inshuro 8 ～ 13Hz, amplitude 10 ～ 100μV.Uturere twose twubwonko dufite, ariko kugaragara cyane mukarere ka ocipital.Injyana ya Alpha nigikorwa nyamukuru gisanzwe cya EEG mubantu bakuru ndetse nabana bakuru iyo amaso yabo akangutse kandi afunze, kandi injyana ya alfa ya alpha mubana igenda igaragara buhoro buhoro.
Waveβ umuraba: inshuro ni 14 ～ 30Hz, naho amplitude igera kuri 5 ～ 30 / μV, ibyo bikaba bigaragara cyane mubice by'imbere, by'agateganyo no hagati.Kwiyongera mubikorwa byo mumutwe no kwishimira amarangamutima.Hafi ya 6% byabantu basanzwe baracyafite injyana ya beta muri EEG yanditse nubwo baba bahagaze mumutwe kandi amaso afunze, aribyo bita beta EEG.
Umuhengeri: inshuro 4 ～ 7Hz, amplitude 20 ～ 40μV.
Umuhengeri: inshuro 0.5 ～ 3Hz, amplitude 10 ～ 20μV.Akenshi bigaragara ku gahanga.