A larger hippocampus is associated with longer-lasting spatial memory
A larger hippocampus is associated with longer-lasting spatial memory
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DOI：
10.1073/pnas.121034798
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发表时间：
2001-06-05
影响因子：
11.1
通讯作者：
Healy, SD
中科院分区：
文献类型：
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作者：
Biegler, R;McGregor, A;Healy, SD
对一系列动物（伦敦出租车司机、一夫多妻的雄性田鼠、巢寄生的雌性燕八哥和一些储存食物的鸟类）进行的体积研究表明，海马体（对学习和记忆至关重要的大脑区域）的大小与涉及额外空间收入和记忆需求的任务相关。在本文中，我们报告的数量优势，粮食储存获得这样的扩大。煤山雀（帕罗斯ater）是一种储存食物的物种，在评估记忆持久性的任务中表现得比大山雀（帕罗斯major）更好，但在评估记忆分辨率或测试记忆容量的任务中表现不佳。这些结果表明，与海马体扩大相关的食物储存物种的优势是记忆持久性。
Volumetric studies in a range of animals (London taxi-drivers, polygynous male voles, nest-parasitic female cowbirds, and a number of food-storing birds) have shown that the size of the hippocampus, a brain region essential to learning and memory, is correlated with tasks involving an extra demand for spatial]earning and memory. In this paper, we report the quantitative advantage that food storers gain from such an enlargement. Coal tits (Paros ater) a food-storing species, performed better than great tits (Paros major), a nonstoring species, on a task that assessed memory persistence but not on a task that assessed memory resolution or on one that tested memory capacity. These results show that the advantage to the food-storing species associated with an enlarged hippocampus is one of memory persistence.