Sun compass-based spatial learning impaired in homing pigeons with hippocampal lesions
Sun compass-based spatial learning impaired in homing pigeons with hippocampal lesions
复制标题
海马病变的信鸽基于太阳罗盘的空间学习受损
作者：
V. Bingman;T. Jones
已知海马结构对于空间认知至关重要，例如，调节环境地图的学习。但是空间地图是如何学习的，海马结构在学习过程中扮演什么角色？太阳罗盘可能是动物王国中最普遍、最自然的空间定位机制。太阳罗盘还可以用作支持空间学习的方向参考。我们报告说，信鸽海马病变无法使用太阳罗盘学习的方向位置的食物在户外，实验竞技场。尾侧新纹状体损伤的信鸽很容易学会同样的任务，并在时钟移位操作后显示出适当的方向性反应，这表明它们确实在使用太阳罗盘来学习任务。最后，海马和对照组受损的鸟类都很快学会了一个程序上相似的任务，即在同一个实验竞技场中，颜色线索识别食物的位置。结果表明，海马损伤损害太阳罗盘使用的背景下学习。因此，结果支持的假设，海马结构在空间认知的重要性可能与其参与的神经过程中，信息从一个方向参考，在这种情况下，太阳罗盘，是用来学习空间中的刺激之间的方向关系。
The hippocampal formation is known to be critical for spatial cognition, for example, regulating the learning of environmental maps. But how is a spatial map learned, and what is the role of the hippocampal formation in the learning process? The sun compass is perhaps the most ubiquitous, naturally occurring spatial orientation mechanism found in the animal kingdom. The sun compass may also serve as a directional reference that supports spatial learning. We report that homing pigeons with hippocampal lesions were unable to use the sun compass to learn the directional location of food in an outdoor, experimental arena. Homing pigeons with lesions of the caudal neostriatum readily learned the same task, and showed appropriately shifted directional responses following a clock-shift manipulation demonstrating that they were indeed using the sun compass to learn the task. Finally, both hippocampal and control lesioned birds quickly learned a procedurally similar task where a color cue identified the location of food in the same experimental arena. The results indicate that hippocampal lesions impair sun compass use in the context of learning. As such, the results support the hypothesis that the importance of the hippocampal formation in spatial cognition may be related to its participation in a neural process in which information from a directional reference, in this case the sun compass, is used to learn the directional relationship among stimuli in space.
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影响因子：
56.9
作者：
WILSON, MA;MCNAUGHTON, BL
通讯作者：
MCNAUGHTON, BL
DOI：
10.1073/pnas.87.16.6349
发表时间：
1990-08-01
影响因子：
11.1
作者：
JACOBS, LF;GAULIN, SJC;HOFFMAN, GE
通讯作者：
HOFFMAN, GE
海马病变不会损害负性模式：对构型关联理论的挑战。
影响因子：
1.9
作者：
Davidson,TL;McKernan,MG;Jarrard,LE
通讯作者：
Jarrard,LE
内部时钟标准的反馈控制需要海马功能。
影响因子：
1.9
作者：
Meck,WH
通讯作者：
Meck,WH