Dergi Ara >>
Yıl:2014; Cilt: 1; Sayı: 3>> Özet
TAM METİN
The Journal of Neurobehavioral Sciences; 2014;1(3):63-66
Ovaryen Hormonların Anımsamada Bastırma Üzerindeki Etkisi
M Aslankara, A Bayram, N Tarhan, A Arslan
Fatih Ünversitesi, İstanbul
Çeşitli çalışmalar, insanlarda bellek kontrolünün (anımsamada bastırma) yürütücü bir işlev olarak prefrontal korteks denetiminde aktif bir mekanizma ile gerçekleştiğini göstermiştir. Prefrontal korteksin ovaryen hormonların müdahalesine oldukça açık olduğu bilinmekle birlikte bu etkinin anımsamada bastırma işlevi sırasında nasıl bir rol oynadığı bilinmemektedir. Burada sunulan çalışma bir bellek kontrolü modeli olan düşün/düşünme paradigmasını (think /no think paradigm) kullanarak ve ovaryen hormonların kantitatif olarak analiz edildiği denek-içi desen düzeneği ile bu soruya cevap aramaktadır. Menstrual siklusun foliküler (düşük estrojen ve progesteron) ve midlüteal (yüksek estrojen ve progesteron) fazlarındaki bellek kontrol oranları kıyaslanmıştır. Veriler göstermektedir ki midlüteal fazda, deneklerin % 63.6 si, önceden öğrenilmiş kelime çiftlerini ‘düşünmeme koşulu’ yani ‘ip ucu kelimesi ile ilişkili hedef kelimesini düşünmeme koşulu’ (NT condition)- sırasında aktif unutma (anımsamada bastırma) becerisi göstermiştir (istatiksel olarak anlamlı bir şekilde kendiliğinden unutma oranına göre daha çok unutma ya da daha az hatırlama). Ancak ‘düşünmeme koşulunun’ bellek kontrolü üzerindeki bu etkisi, düşün/düşünme prosedürünü takiben yapılan bellek testleri ile gösterildiği gibi foliküler fazda gözlenmemiştir. Bu sonuçlar bellek kontrolü işleminin ovaryen hormonlar ile ilişkili bir durum olduğunu göstermektedir.
Effect of Ovarian Hormones on Memory Suppression
Several studies suggest that memory suppression in humans occur as an active process of executive control, mediated by regions of prefrontal cortex, which is a substrate for ovarian hormones. However the effect of ovarian hormones on this process is not known. In order to address this question, we utilized the quantitative analysis of ovarian hormones in combination with the procedure of a memory control model, the think (T) /no think (NT) paradigm in a within-subject design study. We compared the rate of memory control between the follicular (low estrogen and progesterone) and mid-luteal (high estrogen and progesterone) phases of regularly cycling healthy women. Our data demonstrate that during midluteal phase, 63.6 % of subjects are able to ‘suppress’ or actively forget (significantly less % recall below the baseline) previously learned word pairs in the ‘NT condition; i.e., not to think the target word associated with the cue word’. However during the follicular phase there was no effect of ‘NT condition’ on the active forgetting of word pairs below the baseline as assessed by the memory test applied after the T/NT procedure. Thus, our results indicate that ovarian hormones are associated with the process of memory control.

http://www.simplehandbaga.com/hermes-constance-bag-23cm-togo-leather-black-gold.html http://www.simplehandbaga.com/hermes-garden-party-handbag-small-31cm-red.html http://www.simplehandbaga.com/hermes-birkin-35cm-cattle-skin-vein-handbags-orange-golden.html http://www.simplehandbaga.com/hermes-jige-clutch-29cm-croco-white-grey.html http://www.simplehandbaga.com/hermes-kelly-32cm-ostrich-vein-6108-black-golden.html http://www.simplehandbaga.com/hermes-jige-clutch-29cm-croco-dark-red.html http://www.simplehandbaga.com/hermes-herbag-31cm-green-canvas-bag.html http://www.simplehandbaga.com/hermes-epsom-leather-wallet-camel-silver.html http://www.simplehandbaga.com/hermes-calf-leather-men-h-belt-138-silver-blue.html http://www.simplehandbaga.com/hermes-so-kelly-28cm-togo-leather-shoulder-bag-green-silver.html http://www.simplehandbaga.com/hermes-kelly-32cm-togo-leather-6108-electric-blue-silver.html http://www.simplehandbaga.com/hermes-epsom-leather-jige-clutch-29cm-orange.html http://www.simplehandbaga.com/hermes-birkin-30cm-togo-leather-handbag-blue-gold.html http://www.simplehandbaga.com/hermes-medor-clutch-29cm-croco-burgundy.html http://www.simplehandbaga.com/hermes-bolide-31cm-togo-leather-pink-bag.html http://www.simplehandbaga.com/hermes-birkin-35cm-handbag-crocodile-leather-green-gold.html http://www.simplehandbaga.com/hermes-constance-23cm-croco-leather-black.html http://www.simplehandbaga.com/hermes-lindy-30cm-handbag-pink-silver.html http://www.simplehandbaga.com/hermes-garden-party-handbag-small-31cm-elephant-grey.html http://www.simplehandbaga.com/hermes-birkin-35cm-togo-leather-handbags-dark-blue-golden.html http://www.simplehandbaga.com/hermes-jige-wallet-togo-leather-black.html http://www.simplehandbaga.com/hermes-dogon-wallet-togo-leather-h001-brown.html http://www.simplehandbaga.com/hermes-kelly-cut-31cm-epsom-leather-clutch-orange.html http://www.simplehandbaga.com/hermes-jige-wallet-togo-leather-electric-blue.html http://www.simplehandbaga.com/hermes-jige-wallet-togo-leather-pink.html http://www.simplehandbaga.com/hermes-h-wallet-royal-blue-silver.html http://www.simplehandbaga.com/hermes-birkin-30cm-togo-leather-handbags-black-gold.html http://www.simplehandbaga.com/hermes-kelly-cut-31cm-epsom-leather-clutch-electric-blue.html http://www.simplehandbaga.com/hermes-lindy-30cm-handbag-blue-silver.html http://www.simplehandbaga.com/hermes-dogon-wallet-togo-leather-h001-burgundy.html http://www.simplehandbaga.com/hermes-medor-clutch-29cm-croco-grey.html http://www.simplehandbaga.com/hermes-constance-bag-23cm-epsom-leather-grey-gold.html http://www.simplehandbaga.com/hermes-kelly-cut-31cm-epsom-leather-clutch-elephant-grey.html http://www.simplehandbaga.com/hermes-calf-leather-wallet-h005-red.html http://www.simplehandbaga.com/hermes-lindy-30cm-handbag-camel-gold.html http://www.simplehandbaga.com/hermes-kelly-wallet-togo-leather-black.html http://www.simplehandbaga.com/hermes-epsom-leather-jige-clutch-29cm-orange.html http://www.simplehandbaga.com/hermes-mini-evelyne-tpm-bag-pink.html http://www.simplehandbaga.com/hermes-herbag-31cm-burgundy-canvas-bag.html http://www.simplehandbaga.com/hermes-mini-kelly-22cm-epsom-leather-yellow-silver-with-chain-strap.html http://www.simplehandbaga.com/hermes-constance-bag-23cm-togo-leather-blue-silver.html http://www.simplehandbaga.com/hermes-30cm-birkin-bag-togo-leather-with-strap-light-pink-gold.html http://www.simplehandbaga.com/hermes-jige-wallet-togo-leather-blue.html http://www.simplehandbaga.com/hermes-birkin-35cm-togo-leather-handbags-rose-silver.html http://www.simplehandbaga.com/hermes-garden-party-handbag-small-31cm-brown.html http://www.simplehandbaga.com/hermes-jige-clutch-29cm-croco-green.html http://www.simplehandbaga.com/hermes-epsom-leather-jige-clutch-29cm-brown.html http://www.simplehandbaga.com/hermes-garden-party-handbag-small-31cm-blue.html http://www.simplehandbaga.com/hermes-birkin-35cm-cattle-skin-vein-handbags-blue-gold.html http://www.simplehandbaga.com/hermes-birkin-25cm-handbag-6068-orange-silver.html http://www.simplehandbaga.com/hermes-garden-party-handbag-large-36cm-black.html http://www.simplehandbaga.com/hermes-birkin-35cm-togo-leather-handbags-red-silver.html http://www.simplehandbaga.com/hermes-constance-bag-23cm-epsom-leather-pink-silver.html http://www.simplehandbaga.com/hermes-kelly-cut-31cm-epsom-leather-clutch-pink.html http://www.simplehandbaga.com/hermes-calf-leather-wallet-h005-in-orange.html http://www.simplehandbaga.com/hermes-picotin-lock-togo-leather-red.html http://www.simplehandbaga.com/hermes-mini-kelly-22cm-epsom-leather-green-silver-with-chain-strap.html http://www.simplehandbaga.com/hermes-birkin-25cm-handbag-6068-orange-silver.html http://www.simplehandbaga.com/hermes-birkin-35cm-togo-leather-handbag-yellow-gold.html http://www.simplehandbaga.com/hermes-birkin-35cm-cattle-skin-vein-handbags-orange-golden.html http://www.simplehandbaga.com/hermes-constance-bag-23cm-togo-leather-camel-gold.html http://www.simplehandbaga.com/hermes-calf-leather-men-h-belt-138-gold-light-coffee.html http://www.simplehandbaga.com/hermes-kelly-28cm-bag-togo-leather-blue-gold.html http://www.simplehandbaga.com/hermes-garden-party-handbag-small-31cm-pink.html http://www.simplehandbaga.com/hermes-garden-party-handbag-large-36cm-red.html http://www.simplehandbaga.com/hermes-birkin-30cm-togo-leather-handbag-burgundy-gold.html http://www.simplehandbaga.com/hermes-mini-evelyne-tpm-bag-dark-blue.html http://www.simplehandbaga.com/hermes-birkin-35cm-cattle-skin-vein-handbags-light-coffee-silver.html http://www.simplehandbaga.com/hermes-so-kelly-28cm-togo-leather-shoulder-bag-hot-pink-silver.html http://www.simplehandbaga.com/hermes-birkin-30cm-togo-leather-handbags-black-gold.html http://www.simplehandbaga.com/hermes-medor-clutch-29cm-croco-white.html http://www.simplehandbaga.com/hermes-garden-party-36cm-leather-handbag-black-hot-pink.html http://www.simplehandbaga.com/hermes-birkin-35cm-handbag-crocodile-leather-brown-gold.html http://www.simplehandbaga.com/hermes-constance-wallet-togo-leather-rose.html http://www.simplehandbaga.com/hermes-bi-fold-wallet-h006-black.html http://www.simplehandbaga.com/hermes-constance-bag-23cm-epsom-leather-red-gold.html http://www.simplehandbaga.com/hermes-birkin-35cm-togo-leather-handbags-black-silver.html http://www.simplehandbaga.com/hermes-mini-evelyne-tpm-bag-blue.html http://www.simplehandbaga.com/hermes-calf-leather-men-h-belt-138-silver-blue.html http://www.simplehandbaga.com/hermes-epsom-leather-jige-clutch-29cm-black.html http://www.simplehandbaga.com/hermes-epsom-leather-jige-clutch-29cm-brown.html http://www.simplehandbaga.com/hermes-bolide-31cm-togo-leather-orange-bag.html http://www.simplehandbaga.com/hermes-calf-leather-wallet-h005-h-red.html http://www.simplehandbaga.com/hermes-medor-clutch-29cm-croco-burgundy.html http://www.simplehandbaga.com/hermes-birkin-35cm-crocodile-leather-handbag-grey-white-gold.html http://www.simplehandbaga.com/hermes-lindy-30cm-handbag-red-gold.html http://www.simplehandbaga.com/hermes-birkin-35cm-cattle-skin-vein-handbags-dark-khaki-silver.html http://www.simplehandbaga.com/hermes-garden-party-36cm-canvas-handbag-yellow.html http://www.simplehandbaga.com/hermes-calf-leather-8616-handbag-cherry-pink.html http://www.simplehandbaga.com/hermes-kelly-cut-31cm-epsom-leather-clutch-orange.html http://www.simplehandbaga.com/hermes-lindy-30cm-handbag-orange-silver.html http://www.simplehandbaga.com/hermes-dogon-wallet-togo-leather-h001-blue.html http://www.simplehandbaga.com/hermes-birkin-35cm-handbag-crocodile-leather-green-gold.html http://www.simplehandbaga.com/hermes-mini-kelly-22cm-epsom-leather-yellow-silver-with-chain-strap.html http://www.simplehandbaga.com/hermes-mini-evelyne-tpm-bag-camel.html http://www.simplehandbaga.com/hermes-constance-bag-23cm-togo-leather-black-gold.html http://www.simplehandbaga.com/hermes-mini-evelyne-tpm-bag-green.html http://www.simplehandbaga.com/hermes-dogon-wallet-togo-leather-h001-green.html http://www.simplehandbaga.com/hermes-birkin-35cm-cattle-skin-vein-handbags-blue-gold.html http://www.simplehandbaga.com/hermes-constance-23cm-togo-leather-orange-silver.html