Yuli 23rd, 2012 a Neuroscience
Masana kimiyya sun sami shaida mai ƙarfi cewa ƙwaƙwalwar ajiyar ƙwaƙwalwa da fuskantar kai tsaye a ainihin lokacin zai iya haifar da samfurin haɓaka ta kwakwalwa.
Binciken, wanda Baycrest's Rotman Research Institute (RRI) ya jagoranta, tare da haɗin gwiwar Jami'ar Texas da ke Dallas, ɗayan ɗayan mafi girma ne kuma mai rikitarwa har yanzu don haɓaka ikon ƙwaƙwalwar ƙwaƙwalwar ƙwaƙwalwar ajiya ta hanyar sake kunna ɓangarorin kwakwalwa waɗanda suke tsunduma yayin ƙwarewar fahimta ta asali. Masu bincike sun gano cewa kyakkyawan ƙwaƙwalwar ajiya da ƙwarewar fahimta na yau da kullun suna da kamanceceniya mai “kammaluwa” a matakin jijiya, duk da cewa ba kwazon kwakwalwa suke “cikakke” ba.
Binciken ya bayyana a cikin wannan watan a cikin jaridar Cognitive Neuroscience, kafin bugawa.
"Lokacin da muke tunatar da abin da muka fuskanta a hankali, zai iya zama kamar an sake dawo da mu ne a wani lokaci kuma mu sake rayuwa a wannan lokacin," in ji Dokta Brad Buchsbaum, babban mai binciken da kuma masanin kimiyya tare da Rc na Baycrest. "Nazarinmu ya tabbatar da cewa hadadden abu, mai dauke da abubuwa da yawa ya kunshi dawo da dukkan yanayin aikin kwakwalwar da aka zana yayin fahimta na farko game da kwarewar. Wannan yana taimakawa wajen bayyana dalilin da yasa ƙwaƙwalwar ajiya zata iya zama gaske. ”
Amma ƙwaƙwalwar ajiyar ƙwaƙwalwa ba ta da wautar mu da gaskanta cewa muna cikin duniyar gaske, a waje - kuma wannan a cikin kansa yana ba da tabbaci mai ƙarfi cewa ayyukan haɓaka biyu ba sa aiki daidai daidai cikin kwakwalwa, ya bayyana.
A cikin binciken, kungiyar Dr. Buchsbaum ta yi amfani da hoton maganadisu mai karfin maganadisu (fMRI), wata fasaha mai karfin kwakwalwa wacce ke kirkirar hotunan kwamfuta na wuraren kwakwalwa wadanda ke aiki yayin da mutum ke aiwatar da wani aiki na musamman na fahimi. Wasu rukunin manya 20 masu lafiya (masu shekaru 18 zuwa 36) an binciki su yayin da suke kallon shirye-shiryen bidiyo 12, kowane dakika tara, wanda aka samo daga YouTube.com da Vimeo.com. Shirye-shiryen bidiyo sun ƙunshi abubuwa da yawa - kamar kiɗa, fuskoki, motsin mutum, dabbobi, da shimfidar waje. An umarci mahalarta da su mai da hankali sosai kan kowane bidiyon (wanda aka maimaita sau 27) kuma aka sanar da su cewa za a gwada su kan abubuwan da ke cikin bidiyon bayan hoton.
An sanya raga na tara masu halartar mahalarta asali don kammala aikin horo na ƙwaƙwalwar ajiya a cikin makonni da yawa wanda ya buƙata yin gyaran ra'ayoyin da ke cikin bidiyo da suka kalli tun daga farkon zaman. Bayan horo, an sake duba wannan rukuni yayin da suke tunani akai-akai kowane shirin bidiyon. Don faɗakar da ƙwaƙwalwar ajiyar su ga wani shirin, an horar da su don haɗaka wata alama ta musamman tare da kowannensu. Bayan biyo bayan kowane tunanin mutum, mahalarta za su tura maɓallin da ke nuna a kan girman 1 zuwa 4 (1 = ƙananan ƙwaƙwalwar ajiya, 4 = kyakkyawan ƙwaƙwalwar ajiya) yadda suka yi tunanin sun tuna da wani shirin.
Dr.ungiyar Dr. Buchsbaum ta sami “bayyananniyar shaida” cewa yanayin yadda kwakwalwar ta kunna yayin ƙwaƙwalwar ajiyar ƙwaƙwalwa ta kwaikwayi abubuwan da aka zana yayin fahimta lokacin da aka kalli bidiyon - ta hanyar rubutu na kashi 91% bayan babban binciken abubuwan da aka tsara na fMRI.
Abin da ake kira “wuraren zafi”, ko kuma mafi kamanceceniyar juna, ya faru ne a sassan azanci da mahaɗan motsi na ɓangaren ƙwaƙwalwar ƙwaƙwalwa - yankin da ke taka muhimmiyar rawa wajen ƙwaƙwalwa, kulawa, wayewar kai, tunani, yare da sani.
Dokta Buchsbaum ya ba da shawarar nazarin nazarin da aka yi amfani da shi a cikin bincikensa zai iya ƙarawa zuwa batirin yanzu na kayan aikin tantance ƙwaƙwalwar da ke akwai ga likitocin. Hanyoyin kunna kwakwalwa daga bayanan fMRI na iya bayar da kyakkyawar hanyar tantancewa ko rahoton kai tsaye na mai kwakwalwa game da tunaninsu kamar “mai kyau ne ko mai haske” daidai ne ko a'a.
Cibiyar Baycrest don Kula da Geriatric
“Me yasa ƙwaƙwalwar ajiyar zuciya take‘ jin gaske? Kwarewar fahimta ta hakika, maimaita tunani ya ba da irin tsarin kunna kwakwalwa. ” Yuli 23rd, 2012. http://medicalxpress.com/news/2012-07-vivid-memory-real-perceptual-mental.html
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