Ukukhohliswa okubukwayo kukhona ukuphazamiseka kokunyakaza, ifomu, ubukhulu noma umbala endaweni ebonakalayo. Ukucabanga okubonakalayo kungaba umphumela wesifo esivumelwaneni se-occipital, esitholakala ngemuva kwe-cortex ye-cerebral futhi iyisikhungo esiyinhloko sokucubungula okubukwayo.
Ukushaywa yisisu kungabangelwa yi-clot engavimbela ukugeleza kwegazi ebuchosheni (okuthiwa i-ischemic stroke) noma nge-blood vessel ukubhula nokuvimbela igazi ukugeleza ebuchosheni (okubizwa ngokuthi isifo esibuhlungu).
Ukuhlaselwa kwe-ischemic okudlulayo , noma "ukushaya okuncane," kubangelwa i-clot yesikhashana.
Imiphumela ye-Stroke
Uma ukushaywa komzimba kwenzeka futhi ukugeleza kwegazi akukwazi ukufinyelela endaweni elawula umsebenzi othile womzimba, leyo ngxenye yomzimba iyeka ukusebenza ngendlela efanele. Uma lesi sigameko sibheka ngemuva kwengqondo, isibonelo, kungenzeka ukuthi amanye amazinga wombono azophelelwa amandla.
Imiphumela yecroke ixhomeke ezintweni eziningana, kufaka phakathi indawo yokuvimba kanye nokuthi izicubu zobuchopho zithinteka kanjani. Kodwa-ke, ngoba olunye uhlangothi lobuchopho lulawula uhlangothi oluhlukile lomzimba, isifo esihlasela ohlangothini olulodwa sizoholela ezinkingeni zezinhlangothi ezihlangothini lomzimba ezithinta. Isibonelo, uma ukushaywa komzimba kwenzeka ngakwesokunene sobuchopho, ohlangothini lwesobunxele lomzimba (nohlangothi lwesobunxele buso) luzophazamiseka, oluzokhiqiza noma yikuphi okulandelayo:
- Ukukhubazeka ngakwesokunxele komzimba
- Izinkinga zembono kubandakanya ukucabanga okubonakalayo
- Isitayela sokuziphatha esisheshayo, esiphuthumayo
- Ukulahlekelwa kwememori
Uma lesi sigameko senziwa ngakwesokunxele sobuchopho, ohlangothini lwesokudla lomzimba luzophazamiseka, ukukhiqiza ezinye noma zonke ezilandelayo:
- Ukukhubazeka ngakwesokudla komzimba
- Izinkinga zokukhuluma / zolimi
- Izithambile, isitayela sokuziphatha esilula
- Ukulahlekelwa kwememori
Uma ukushaywa komzimba kwenzeka ebuchosheni, ngokuya ngobuhlungu bokulimala, kungathinta zombili izinhlangothi zomzimba futhi kungashiya umuntu "esimweni esivinjelwe".
Uma isimo esivinjelwe ngaphakathi, isiguli ngokuvamile asikwazi ukukhuluma noma ukufeza noma yikuphi ukunyakaza ngaphansi kwentamo.
Izinhlobo ze-Visual Illusions
Izibonelo zezingqondo ezibukwayo zihlanganisa uma umuntu ebona izinto ezimbili noma ngaphezulu phambi kwazo uma kukhona eyodwa kuphela; lapho konke kubonakala sengathi kungumbala ofanayo sonke isikhathi; noma lapho abantu noma izinto zibonakala zikhulu kakhulu noma zincane kunazo zonke.
Imithombo:
U-Allan Ropper noRobert Brown, u-Adam no-Victor's Principles of Neurology , u-8th Edition McGraw-Hill Izinkampani Inc, United States of America, 2005, iphepha 417-430.
I-American Stroke Association.