Ubukhulu beHippocampus buhlukana phakathi kwabantu abangenawo ngaphandle kwe-PTSD
Intuthuko kwezobuchwepheshe bezobuchwephesha, ezifana ne-imagination magontic resonance imaging (MRI), zinike ingqiqo kwendima engqondweni edlalwa ngayo kwiintsholongwane ezahlukeneyo zengqondo, njengengxaki yokuphazamiseka kwengqondo emva kwexinzelelo ( PTSD ) . Abaphandi baye bagxininisa ngakumbi kwi-hippocampus kwiimeko ze-PTSD.
Yintoni iHippocampus?
I-hippocampus iyinxalenye yesimiso somlenze wengqondo.
Inkqubo yesigxina ichaza iqela lezakhiwo zobuchopho ezijikeleze ingqondo. Izakhiwo zobuchopho ezenza umlenze wendima zidlala indima enkulu kwindlela umntu aziva ngayo iimvakalelo ezithile (ukwesaba kunye nomsindo), izizathu kunye nememori.
I-hippocampus inoxanduva lokugcina nokufumana izikhumbuzo. Abantu abaye bafumana uhlobo lomonakalo kwi-hippocampus yabo banokuba nobunzima bokugcina nokukhumbula ulwazi. Ngaphandle kwezinye izakhiwo zomlenze, i-hippocampus idlala indima ekunokwenzeni umntu ukuba anqobe iimpendulo zesaba.
Indima yeHippocampus kwiPTSD
Abantu abaninzi abane-PTSD bafumana ubunzima beememori . Ba nobunzima bokukhumbula ezinye iinkalo zesiganeko sabo esibuhlungu. Ngenye indlela, ezinye iinkumbulo zingabonakalisa kwaye zihlala zikhona kula bantu. Abantu abanePTSD banokuba neengxaki zokulwa nokuphendula kwabo ukoyiko kwiingcamango, iinkumbulo okanye iimeko ezikhumbuza isiganeko sabo esibuhlungu.
Ngenxa yendima ye-hippocampus kwimemori kunye namava angamavakalelo, kucatshangelwa ukuba ezinye zeengxaki zabantu abanamava e-PTSD bangaba se-hippocampus.
I-PTSD iyakwenza njani iHippocampus?
Ezinye iingcaphephe zibonisa ukuba uxinzelelo oluqhubekayo lungonakalisa i-hippocampus. Xa sibhekene noxinzelelo, umzimba ukhulula ihomoni ebizwa ngokuba yi- cortisol , eyanceda ekuhlanganiseni umzimba ukuba uphendule kwisiganeko esixinzelelekileyo .
Ezinye izifundo zezilwanyana, nangona kunjalo, zibonisa ukuba amanqanaba aphezulu e-cortisol angonakalisa okanye achithe iiseli kwi-hippocampus.
Abaphandi baye bajonga ubukhulu be-hippocampus kubantu abane- PTSD nabangenawo . Baye bafumanisa ukuba abantu abanezigulane ezinzima zePTSD banomncinci we-hippocampi. Oku kubonisa ukuba ukufumana uxinzelelo oluqhubekayo ngenxa ye-PTSD enamandla kwaye engapheliyo ingakonakalisa ekugqibeleni i-hippocampus, eyenza ibe yincinci.
Ngaba Kukhona Enye Inokwenzeka?
Akubona wonke umntu ofumana isiganeko esibuhlungu esenza i-PTSD. Ngako oko, abaphandi baye bacebisa ukuba i-hippocampus inokudlala indima ekuqaliseni ngubani osemngciphekweni wokuphuhlisa i-PTSD. Ngokukodwa, kunokwenzeka ukuba ukuba ne-hippocampus encinci ingabonakalisa ukuba umntu unobungozi ekuphuhliseni imeko enzima ye-PTSD emva kwesiganeko esibuhlungu. Abanye abantu banokuzalwa kunye ne-hippocampus encinci, enokuphazamisana nokukwazi kwabo ukubuyela kwiimeko ezibuhlungu, zibeka emngciphekweni wokuphuhlisa i-PTSD.
Ukuhlolisisa oku, olunye uphando lugxininise amawele afanayo, kunye newele elilodwa elibonakaliswe kwisiganeko esibuhlungu (ukulwa) kunye nesinye esingaxilwanga. Ekubeni bahlanganyela iinjenge ezifanayo, ukufunda amawele afanayo kunokunika ingqiqo malunga nempembelelo yemfuza ekuphuhliseni iimeko ezithile.
Umzekelo, kulo mzekelo, ukuba umntu ophuhlise i-PTSD ene-hippocampus encinci kwaye unengxaki yokungafihlisi i-twin ene-hippocampus encinci, kuya kubonisa ukuba i-hippocampus encinci ingabonakalisa ubunzima bokuvelisa i-PTSD elandelayo amava amaninzi.
Enyanisweni, oku kanye bakufumene. Abantu abane-PTSD enobunzima be-hippocampus encinci, kwaye nabo babenamahlumela angenayo ingxaki yecala elivulekileyo nge-hippocampus encinci. Ngenxa yoko, i-hippocampus encinci ingabonakalisa ukuba umntu ukhuselekile okanye mhlawumbi uhlakulele i-PTSD emva kwexesha elibi.
Ekubeni, kubalulekile ukukhumbula ukuba amawele ahlala ehlala kunye nendawo ekhulayo, ngoko kunzima ukukrazula indima yendalo ngokubhekiselele kwimidlalo yokulinganisa ngobukhulu bomthi womuntu.
Ngoko, isigwebo sisesebudlelwaneni bokwenene phakathi kwe-hippocampus kunye ne-PTSD.
Lolwazi Lungasetyenziselwa Njani?
Kukho into eninzi yokufunda malunga nendima ezithile zeengqondo ezidlala kwiPTSD. Ukwazi indlela i-PTSD echaphazela ngayo ingqondo (nangona kunjalo), nangona kunjalo, kubaluleke kakhulu ukufunda. Ukuqonda ukuba yiziphi iinjongo zengqondo ezinokuchaphazela i-PTSD inokukhokelela ekuphuhlisweni kwamachiza asebenzayo ngokuphatha le ngxaki. Ukongeza, le ngcaciso ingasinceda ukuba siqonde bhetele ukuba ngubani osemngciphekweni wokuphuhlisa i-PTSD emva kwesiganeko esibuhlungu.
> Iingcaciso:
> Kolassa, IT, & Elbert, T. (2007). I-neuroplasticity yesikhokelo kunye esebenzayo ngokubhekiselele kwingcinezelo yokukhathazeka. Izikhokelo Zangoku kwiSayensi zeNzululwazi, 16 , 321-325.
> Wingenfeld K, Wolf OT. Ukuxinezeleka, inkumbulo, kunye neHippocampus. Ku: I-Hippocampus kwi-Clinic Neuroscience . S. Karger AG; 2014: 109-120.