Bingman Verner P, Erichsen Jonathan T, Anderson John D, Good Mark A, Pearce John M
Department of Psychology, Bowling Green State University, Bowling Green, OH, USA.
Behav Neurosci. 2006 Aug;120(4):835-41. doi: 10.1037/0735-7044.120.4.835.
Homing pigeons (Columba livia) were trained to locate a goal in one corner of a rectangular arena by either its shape (geometry) or the left-right configuration of colored features located in each corner (feature structure). Control and hippocampal-lesioned pigeons learned at a similar rate, but the control birds made proportionally more geometric errors during acquisition. On conflict probe trials, the control birds preferred geometrically correct corners, whereas the hippocampal-lesioned birds displayed a greater preference for the correct corner defined by feature structure. On geometry-only probe trials, both groups demonstrated an ability to identify the goal location. Hippocampal lesions do not interfere with goal recognition by the feature structure of local cues but diminish the salience of arena shape.
家鸽（Columba livia）被训练通过目标的形状（几何形状）或位于每个角落的彩色特征的左右配置（特征结构）来在矩形竞技场的一个角落定位目标。对照组和海马损伤的鸽子学习速度相似，但对照组的鸽子在习得过程中出现的几何形状错误比例更高。在冲突探测试验中，对照组的鸽子更喜欢几何形状正确的角落，而海马损伤的鸽子对由特征结构定义的正确角落表现出更大的偏好。在仅基于几何形状的探测试验中，两组都表现出识别目标位置的能力。海马损伤不会干扰通过局部线索的特征结构进行的目标识别，但会降低竞技场形状的显著性。
