Rashin mafarki na gani shine ɓarna motsi, nau'i, girman ko launi a fagen gani. Kayayyakin zane-zane na iya haifar da wani ciwon bugun jini a cikin lobe, wanda yake shi ne a bayan bayanan gwano kuma shine babban cibiyar yin aiki na gani.
Za a iya haifar da ciwon jini ko ta hanyar jini wanda ya hana yaduwar jini zuwa kwakwalwa (wanda ake kira stroke nechemic) ko kuma karfin jini na rupturing kuma hana jinin jini zuwa kwakwalwa (wanda ake kira stroke).
An kai hari kai tsaye , ko "karamin bugun jini," ta hanyar wucin gadi.
Hanyoyin cutar
Idan annoba ya faru kuma jini ba zai iya isa yankin da ke sarrafa wani aikin jiki ba, ɓangaren jiki yana dakatar da aiki kamar yadda ya kamata. Idan annobar ta faru a baya na kwakwalwa, alal misali, akwai wataƙila wasu matakan hangen nesa za su lalace.
Sakamakon bugun jini ya dogara ne akan dalilai da dama, ciki har da wuri na rikici da kuma yawan nauyin kwakwalwa. Duk da haka, saboda daya gefen kwakwalwa yana kula da kullun sashin jiki, fashewar da ke shafi ɗaya gefen zai haifar da rikici na jiki a gefen jikin da yake shafar. Alal misali, idan annobar ta auku a gefen dama na kwakwalwa, a gefen hagu na jiki (da gefen hagu na fuska) za a shafa, wanda zai iya samar da wani ko duk waɗannan masu zuwa:
- Sashin jiki a gefen hagu na jiki
- Matsalar hangen nesa har da falsafan gani
- Tsarin hali, mai ban sha'awa
- Rashin ƙwaƙwalwa
Idan annobar ta auku a gefen hagu na kwakwalwa, to a gefen dama na jiki zai shafi, samar da wasu ko duk waɗannan masu zuwa:
- Sashin jiki a gefen dama na jiki
- Matsalar maganganu / harshe
- Hali mai laushi, mai laushi
- Rashin ƙwaƙwalwa
Lokacin da bugun jini ya faru a cikin kwakwalwa, ya danganta da mummunan rauni, zai iya shafar bangarorin biyu na jiki kuma zai iya barin wani a cikin "kulle-in" jihar.
A lokacin da aka kulle wani mashigin kulle, mai haƙuri ba zai iya magana ko cimma wani motsi a kasa da wuyansa ba.
Irin Kayayyakin Kayayyakin Abinci Illusions
Misalan bautar gumaka sun hada da lokacin da mutum ya ga abubuwa biyu ko fiye a gaban su idan akwai daya; lokacin da duk abin da ya bayyana yana da launi daya lokaci; ko kuma lokacin da mutane ko abubuwa sun kasance sun fi girma ko ƙarami fiye da yadda suke.
Sources:
Allan Ropper da Robert Brown, ka'idoji na Adam da na Victor na ilmin halitta , 8th Edition McGraw-Hill Companies Inc., Amurka, 2005, shafi na 417-430.
{Ungiyar {asashen Amirka.