I- hippocampus isakhiwo esincinci, esilubileyo kwingqondo edlala indima ebalulekileyo kwinkqubo yesigxina. I-hippocampus ibandakanyeka ekubunjweni kweememori ezintsha kwaye idibene nokufunda kunye neemvakalelo.
Ngenxa yokuba ubuchopho buxhaswa kwaye buyintlukwano, ngokwenene unayo iichippocampi ezimbini. Zifumaneka ngaphaya kwendlebe nganye kunye ne-intshi-nesiqingatha ngaphakathi kwentloko yakho.
I-Hippocampus Ichaphazela Kanjani Imemori?
I-hippocampus idlala indima ebalulekileyo ekubunjweni, inhlangano kunye nokugcinwa kweememori ezintsha kunye nokudibanisa ukuvakalelwa kunye nemvakalelo kulezi zikhumbuzo. Ngaba uke waphawula ukuba isiphumo esithile singabangela njani imemori enamandla? Nguye i-hippocampus edlala indima kule nxu lumano.
Uphando lufumene ukuba imimandla ehlukeneyo ye-hippocampus ngokwabo idlala indima ebalulekileyo kwiintlobo ezithile zememori. Ngokomzekelo, inxalenye yangemuva ye-hippocampus ibandakanyeka ekusebenziseni izikhumbuzo zendawo. Izifundo zabashayeli beekati zaseLondon ziye zafumanisa ukuba ukuhamba ngeendlela ezinzima zezitalato zedolophu zixhomekeke ekukhuleni kommandla we-hippocampus.
I-hippocampus idlala indima ekudibaniseni iinkumbulo ngexesha lokulala. Uphando lubonisa ukuba umsebenzi omkhulu we-hippocampal ngexesha lokulala emva kohlobo oluthile loqeqesho okanye amava okufunda kukhokelela kwimemori engcono yezinto ezikulo suku olulandelayo.
Oku akuthethi ukuba iinkumbulo zigcinwe kwi-hippocampus ixesha elide. Kunoko, kukholwa ukuba i-hippocampus yenza into ethile yesikhungo sokuthutha, ithatha ulwazi, ukubhalisa, kwaye silondoloze okwesikhashana ngaphambi kokuba kuthunyelwe ukuba lufakwe kwaye lugcinwe kwimemori yesikhathi eside .
Ukholo lukholelwa ukuba ludlala indima ebalulekileyo kule nkqubo.
Xa iHippocampus ibonakaliswe
Ngenxa yokuba i-hippocampus idlala indima ebalulekileyo ekubunjweni kweememori ezintsha, umonakalo kule nxalenye yengqondo ingaba nefuthe elide elide kwiimpawu ezithile zeememori. Ukulimala kwi-hippocampus kuye kwagcinwa emva kokuhlalutya emva kokufa kwebhinqa labantu abane-amnesia. Umonakalo onjalo udibene neengxaki zokwenza izinkumbulo ezicacileyo ezifana namagama, iintsuku kunye neziganeko.
Impembelelo ngqo yomonakalo iyahlukahluka kuxhomekeke kwiyiphi i-hippocampus ifuthe. Uphando lubonisa ukuba umonakalo kwi-hippocampus ekhohlo inefuthe ekukhunjuleni ulwazi lomlomo xa umonakalo kwi-hippocampus elungileyo kubangela iingxaki ngolwazi olubonakalayo.
Ubudala bungaba nefuthe elikhulu ekusebenzeni kwe-hippocampus. Ukuhlolwa kwe-MRI yesibindi sabantu sele kufumene ukuba i-hippocampus yabantu iyancipha ngamaphesenti angama-13 phakathi kweminyaka engama-30 no-80. Abo banokulahleka okunjalo bangabonisa ukuncipha okukhulu ekusebenzeni kwememori. Ukuguqulwa kweseli kwi-hippocampus kuye kwadibaniswa nokuqala kwesifo se-Alzheimer.
Iingxelo
Maguire, EA, et al. (2003). Utshintsho olunxulumene nokuhamba ngokuhambayo kwi-hippocampi yabaqhubi bamatekisi. Iinkqubo ze-National Academy of Science (PNAS). 97 (8), 4398-4403. i-doi: 10.1073 / pnas.070039597.
Myers, DG (2011). Ukuphonononga i-Psychology, incwadi yesibhozo. IYew York: Abapapashi abafanelekileyo.
Peigneux, P., et al. (2004). Ngaba izikhumbuzo zendawo zomeleleka kwi-hippocampus yabantu ngexesha lokutshatyalaliswa kancinci? Neuron, 44 (3), 535-545.
Schacter, iDL (1996). Ukukhangela imemori. ENew York: IiNcwadi eziSiseko.
Sherwood, CC, et al. (2011). Ukuguga kwe-cortex ye-cerebral ihluke phakathi kwabantu kunye nama-chimpanze. Iinkqubo ze-National Academy yeSayensi (PNAS), 108 (32), 13029-13034. i-doi: 10.1073 / pnas.1016709108.