This is despite the fact that a little bit of stress can help us better remember emotional memories.
Dr Joyce Yau said: While we know that stress hormones affect memory, this research explains how the receptors they engage with can switch good memory to poorly-functioning memory in old age.
以大老鼠走迷宫为基础的实验发表在《神经科学杂志》上。
该研究解释了为什么长期过多压力会影响日常储存记忆的正常程序。
尽管一点点压力可以帮助我们更好地进行情绪记忆。
Joyce Yau教授说:我们知道应激激素影响记忆,该研究解释了参与的两个感受器如何在老年时将良好记忆转换成不良记忆。
She added that understanding the mechanisms in the brain, which affect memory as we age, will help find ways to combat conditions linked to memory loss.
The study was funded by the Medical Research Council.
她还说,了解随着年龄老化影响记忆的大脑机制有助于找到与记忆衰退有关问题的解决方法。
该研究得到了医学研究理事会的资助。
Professor Chris Kennard, of the MRC, said: This research highlights some interesting, original concepts relating to why memory loss occurs in old age.
With people living ever longer, the MRC is really focusing on research which allows elderly people not just to survive, but also to stay healthy.
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