Kun ji wannan labarin: gefen hagu na kwakwalwa sanyi ne, ƙididdigewa da kuma harshe, yayin da gefen dama na kwakwalwa yana da fasaha da tunani. Amma kwakwalwa shine tabbas abu mafi wuya a duniya. Yana jin kamar irin wannan yanayin ya kasance mai sauƙi.
Duk da yake akwai kananan muhawara cewa, a yawanci mutane, harshe na hagu mai yawa ya yi amfani da harshe, akwai jayayya da yawa game da abin da ya faru a zuciya, ko kuma idan an rarrabe shi kawai tsakanin bangarorin biyu.
Me ya sa za a samu rabuwa, bayan duk? Wadanda ake kira "alamu na tausayi," amygdalae, suna kasancewa a bangarori biyu na kwakwalwa. Tsohon tsohuwar ƙwayoyin cuta, wadda aka fi sani da tarihin tunaninsa, an watsa shi sosai a ko'ina a kusa da cibiyar kwakwalwa.
Lokacin da ake aiki da kwakwalwa fiye da ɗaya, wani aikin da aka ce ya zama "sasantawa" zuwa wannan birni. Alal misali, ga mafi yawan mu, har ma masu hagu, harshe ya bar haɓaka.
Ya nuna cewa akwai shaidu masu yawa da ke nuna cewa motsin zuciyarmu yana da fifiko ga ɗaya daga cikin ɗayan. Kamar yadda aka rarraba su, duk da haka, wani abu ne kawai, kuma batun batun muhawarar kimiyya mai yawa. Akwai kusan wasu samfurori kamar yadda akwai masana kimiyya da ke nazarin motsin rai. Duk da haka, duk da haka, masu bincike na motsa jiki waɗanda suka yi imani da "sadarwar halayyar" sun fada cikin sansani biyu ko uku.
Tsarin Dama na Dama
Daya daga cikin manyan sansani shine ake kira "haɗin kai tsaye". Wannan dai shine kawai yana cewa dukkanin motsin zuciyarmu suna gudanar da hannun dama na kwakwalwa. Wannan shi ne ainihin gaskiya game da abin da masu bincike ke kira "motsa jiki", ma'ana ma'anar baƙin ciki, farin ciki, fushi, ƙyama da tsoro.
Irin waɗannan motsin zuciyar sun kasance sunadaba don a raba su ba kawai a cikin al'adu daban-daban ba, har ma a fadin jinsuna daban daban na mulkin dabba. Wasu bayanai suna goyon bayan wannan jaddada: amygdala amintacce kuma yana da girma fiye da amygdala na hagu, misali.
Sauran Theories
Ba kowa ya gaskanta da motsin zuciyarmu ba, duk da haka. Wasu masu bincike sunyi imani a maimakon cewa ana jin dadin motsin zuciyar su ta hanyar rarraba su a cikin sharuddan mahimmanci irin su ƙyamar (yadda zakuyi motsa jiki) da kuma basira (yadda kyawawan halayen da kuke ji). Alal misali, fushi za a iya la'akari da wata babbar ƙazamar zuciya, ta ƙasa mai daraja.
Wasu mutane sun yi imanin cewa motsin zuciyar mutum yana cikin layi daban-daban bisa ga basirarsu. Harshen basira yana nuna cewa haɗin gwiwar dama yana da hannu wajen tafiyar da motsin zuciyar da ke tattare da janyewa, kamar tsoro, bakin ciki da ƙyama, da kuma hagu na hagu yana ƙaddamar da matakai da suka danganci irin su farin ciki. Wasu sun cigaba da nuna cewa ya fi rikitarwa fiye da haka - wani ɓangare na kogin yana iya zama tare da hana wannan hali, yayin da wani ɓangare ya bayyana shi. Alal misali, yayin da aka nuna cewa lalacewar hemispheric hagu zai iya haifar da ƙarin dysphoria saboda ƙungiyarsa tare da halayya mai kyau a ƙarƙashin maganar basira, lalacewar kewayawa mai haɗari a hagu na hagu zai iya ƙaruwa sosai kamar yadda ya rage.
Wasu nazarin ilimin electrophysiological da hotunan hoto sun nuna cewa zabin da ya dace da motsin rai ya kunna hagu na hagu da kuma tsakiya, yayin da mawuyacin halin da ake ciki ya kasance mafi girma. Nazarin EEG ya nuna cewa hagu ko hagu yana da karfi a cikin aiki na janyewa ko kuma kula da motsin zuciyarmu. Wadannan maganganun suna da rikitarwa, duk da haka, saboda marasa lafiya da marasa lafiya suna da kyau a ko'ina don shan wahala, kuma waɗannan raunuka kuma zasu iya tasiri ga iyawar mai karfin ganewa da furta ra'ayinsu. A ƙarshe, akwai alamar shaida da ke nuna cewa mahaifa suna lura da yadda ake sarrafawa ta hanyar daban-daban, tare da hagu na kasancewa na daidaitattun abubuwa da kuma hakkin yin aiki mai ban sha'awa.
Alal misali, wani shaidun shaida yana nuna cewa kullun da ke haɗuwa da jinkirin zuciya ya fi sauƙi daga asalin hagu. Wancan ya ce, wasu nazarin sun sami cin zarafi na kamfanonin orbitofrontal da sauran yankuna na cortical a lokacin aiki na motsin rai.
Duk da haka wata ka'ida ta nuna cewa motsi na farko da kuma alamun da aka haɗu suna sarrafawa ta hanyar haƙiƙƙiyar dama, yayin da ƙananan motsin zuciyar jama'a kamar rikici suna sarrafawa ta hagu. Wannan ka'idar ta dogara ne a yayin gwajin Wada, wadda ta dakatar da rabi na kwakwalwa a lokacin da ake gwadawa don tiyata. Masu binciken sun lura cewa irin wannan marasa lafiya sun fi iya bayyana rikici fiye da motsin zuciyar idan kwakwalwar kwakwalwar ta kwashe. Wasu, duk da haka, ba su sami wannan bambanci ba sosai.
> Sources
> Murphy GM, Jr., Inger P, Mark K, et al. Jigilar cututtuka a cikin ɗan adam amygdaloid hadaddun. Journal Fur Hirnforschung 1987; 28: 281-289.
> Ross ED, Ba'a sani ba. M. Affective prosody: menene fahimtar kurakurai ya gaya mana game da hemispheric juyayi na motsin zuciyarmu, jima'i da kuma tsufa, da kuma muhimmancin kwarewa. Neuropsychologia 2011; 49: 866-877.