HIPPOCAMPAL SPECIALIZATION OF FOOD-STORING BIRDS
HIPPOCAMPAL SPECIALIZATION OF FOOD-STORING BIRDS
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DOI：
10.1073/pnas.86.4.1388
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发表时间：
1989-02-01
影响因子：
11.1
通讯作者：
VACCARINO, AL
中科院分区：
文献类型：
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作者：
KREBS, JR;SHERRY, DF;VACCARINO, AL
一项对35种雀形目鸟类或亚种的52只个体的研究表明，储存食物的物种的海马复合体的体积相对于大脑和身体的大小明显大于不储存食物的物种。提取储存的食物依赖于准确而持久的空间记忆，海马损伤会破坏对储存地点的记忆。因此，研究结果表明，储存食物的雀形目动物具有更大的海马复合体，这是一种与使用特殊记忆能力相关的专业化。对其他生活史变量进行了检查，发现与海马体积无关。
In a study of 52 individuals belonging to 35 species or subspecies of passerine birds it was shown that the volume of the hippocampal complex relative to brain and body size is significantly larger in species that store food than in species that do not. Retrieval of stored food relies on an accurate and long-lasting spatial memory, and hippocampal damage disrupts memory for storage sites. The results suggest, therefore, that food-storing species of passerines have an enlarged hippocampal complex as a specialization associated with the use of a specialized memory capacity. Other life-history variables were examined and found not to be correlated with hippocampal volume.