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amygdala n.(pl. -lae )1.杏仁。2.【解剖學】扁桃(...

But , in the sleep - deprived brain , the amygdala seemed to be “ rewired , “ coupling instead with a brain stem area called the locus coeruleus , which secretes norepinephrine , a precursor of the hormone adrenaline that triggers fight - or - flight type reactions 但是,在剝奪睡眠的大腦中,杏仁核看起來似乎是由腦干的藍斑重連接起來的,藍斑分泌去甲腎上腺素? ?一種觸發了對抗類型反應的腎上腺素前體。

But the amygdala is programmed to “ remember “ the trigger that set this process in motion in case it happens again 但是杏仁核具有“記憶”使該過程啟動的觸發因素的功能,以防它會再次發生。

The amygdala immediately activates the bodys automatic “ fight or flight “ response , and the body prepares itself for danger 杏仁核立即刺激身體的應激反應,于是身體做好對付危險的準備。

amygdalaceous

Goleman s book discusses the discovery of an emotional memory center in the amygdala , a complex of nuclei nerve cell groups deep within the temporal lobe of the human brain , which reacts to the environment by stimulating instant emotional responses in the body . the brain s frontal cortex outer layer , upon receiving signals from the amygdala and other areas , thus responds or modifies emotional responses by means of the amygdala . this process is the source of our daily habits and emotions 該書提到,根據研究發現人腦中有一個情緒記憶的中心,就是位于大腦側深部的杏仁核,它會根據不同的情境刺激,使人體產生立即情緒反應,而大腦額葉皮質則接受杏仁核及其它大腦組織所傳來的訊息,做進一步的反應,或修正之前杏仁核產生的情緒反應,這就是我們生活上所謂習慣及情緒的來源。

It has reported that the amygdaloid complex exerts ianuence on the medial geniculate body and the auditory cortex . not only the light evoked response of latera geniculate cells can be modulated by the amygdaloid complex , but also their receptive field characterstics . the pathway of this modulating innuence is amygdala isual cortexateral geniculate 已有的工作表明,杏仁復合體可對內膝體和聽皮層聽覺信息產生影響作用,在視覺上,杏仁復合體不僅對兔外膝體神經元閃光刺激反應活動產生抑制和易化影響,而且對外膝體神經元的感受野特性具有調制作用,這種作用是通過杏仁-視皮層-外膝體途徑而實現。

Gonadal steroid hormone , especially estrogen , exerted considerable effects upon the pituitary , hypothalamus , nigrostriatal and mesolimbic dopaminergic ( daergic ) systems , of which , amygdala ( amy ) was one of the most important site affected by estrogen and the main projection site for daergic neurons from midbrain 大量研究證明,性腺類固醇激素可在垂體、下丘腦、黑質?紋狀體系統和中腦邊緣系統水平影響多巴胺( da )能神經元的功能。其中,杏仁核( amy )是雌激素的重要作用部位之一。

The findings : the hippocampus is involved in processing memory for context ; the anterior cingulate cortex deals with retaining memories of unpleasant stimuli ; the amygdala consolidates memories more broadly and influences the storage of both contextual and unpleasant information 測試結果表明,老鼠大腦的海馬區參與了記憶內容的處理過程而前扣帶腦皮質主要負責記憶不快樂的刺激杏仁核存儲的記憶則更為廣泛,它影響記憶內容的先后順序以及不快樂刺激的存儲。

It consists of fusiform neurons with intensely expressed neuropeptides in the fibers , terminals , and neuronal somata . functional connections between the mrd and hippocampus , amygdala and the basal nucleus of meynert were identified by c - fos expression method [ 14 ] Nmdar在谷氨酸中樞神經系統的許多功能上具有關鍵作用, nmda受體激活后可引起神經元細胞膜對na + 、 k +和ca2 +通透性增強,產生興奮性突觸后電位。

Moreover , the amygdala sends projections to the sensory cortices as well , which may explain , in part , why sensations seem so vivid when we are in certain emotional states ? or perhaps why sensory memories ( flashbacks ) occur in victims of trauma 不只如此,杏仁體也有神經投射到感覺皮質,這也部份解釋了為什麼我們處于某種情緒狀態時,感覺特別鮮明,或是為什麼遭受過創傷的人,會出現感覺的記憶(現場突然重現) 。

The hippocampus is thought to be important in the formation and retrieval of both verbal and emotional memories , whereas the amygdala is concerned with creating the emotional content of memory ? for example , feelings relating to fear conditioning and aggressive responses 一般認為,海馬在陳述及情緒性記憶的形成與擷取上十分重要,杏仁體則與產生記憶的情緒組成有關,好比與懼怕制約及攻擊反應有關的感覺。

These systems include the ventral hippocampus , which is involved in context and focus on tasks , the amygdala , which mediates emotional behavior , and the prefrontal cortex , which modulates activity throughout the limbic system to enable behavioral flexibility 這些區域包括海馬腹側(參與背景和關注性的任務) ,杏仁核(介導情緒行為) ,以及額葉前部的皮層(調整邊緣系統的動作電位,調節行為的靈活性) 。

The more activity in the orbitofrontal cortex and the amygdala , two emotion - processing regions of the brain , the more likely an individual is to remember detailsintrinsically linked to the emotional aspect of the event , such as the exact appearance of the gun 基辛格認為,清楚地識別記憶中消極情緒的影響在某些時刻能夠指導我們的行動、可以讓我們為將來發生類似事件做好準備,從而挽救我們的生命。

The workers allowed the pups to hear their mother ' s call during the period of separation and found that this auditory input increased the serotonin receptor concentration in the males ' amygdala , yet decreased the concentration of these same receptors in females 研究人員讓鼠仔在隔離期間聽到母親的叫喚,發現這個聽覺訊息會提升雄鼠仔杏仁體的血清素受體密度,而雌鼠仔的血清素受體密度卻會下降。

In 48 orientation neurons , l9o / o neurons changed their orientation selectivity by disappearing , narrowing orientation range , widening orientation range , shifting preferred orientation or appearing orientation selectivity after electrical stimulation of the basal amygdala 杏仁復合體可通過杏仁基底核與視皮層直接的神經聯系調制視皮層神經元的電活動特性,也可能經由其他途徑對其施加影響。

Lek - immunoreactive neurons distributed extensively in the rat brain of each group , such as limbic system including the hypothalamus and the amygdala complex , area postrema ( ap ) , parabrachial nucleus ( pen ) , the thalamus and so on 結果: 1 、 lek免疫陽性神經元,廣泛分布在各腦區。在下丘腦和杏仁體等邊緣系統的有關核團,以及最后區( ap ) 、臂旁核( pbn )和丘腦等腦區均有lek陽性神經元分布。

But , in the sleep - deprived brain , the amygdala seemed to be “ rewired , “ coupling instead with a brain stem area called the locus coeruleus , which secretes norepinephrine , a precursor of the hormone adrenaline that triggers fight - or - flight type reactions 但是,在剝奪睡眠的大腦中,杏仁核看起來似乎是由腦干的藍斑重連接起來的,藍斑分泌去甲腎上腺素? ?一種觸發了對抗類型反應的腎上腺素前體。

The more activity in the orbitofrontal cortex and the amygdala , two emotion - processing regions of the brain , the more likely an individual is to remember details intrinsically linked to the emotional aspect of the event , such as the exact appearance of the gun 人的前額腦區底部和扁桃體兩處腦部情緒處理區域的活動越強,越能記住與此事件情緒方面具有本質聯系的細節,比如槍的具體外觀。

The scientists also found that three brain structures ? the nucleus accumbens , amygdala and orbitofrontal cortex ? influenced each other more in men than in women , and the better that circuit was connected , the better the males did in the game 科學家也發現三個腦部結構:伏隔核、杏仁核、腦前額底部在男性腦部產生更多影響,其腦部聯系越好,男性在游戲中的表現就更好。

The brain activity that most closely tracked the hypothetical crimes ? rising and falling with the severity of the scenarios ? occurred in the amygdala , a deep structure that helps us make the connection between bad acts and punishments 假定犯罪影響大腦活動最大的部位- -會隨著犯罪情景的程度出現起伏的部位- -出現在扁桃腺- -幫助我們對壞行為和懲罰建立聯系的一個深層組織。