Brown Alisha A, Spetch Marcia L, Hurd Peter L
University of Alberta, Edmonton, Alberta, Canada.
Psychol Sci. 2007 Jul;18(7):569-73. doi: 10.1111/j.1467-9280.2007.01941.x.
Animals of many species use the geometric shape of an enclosed rectangular environment to reorient, even in the presence of a more informative featural cue. Manipulating the rearing environment affects performance on spatial tasks, but its effect on the use of geometric versus featural navigational cues is unknown. Our study varied the geometric information available in the rearing environment (circular vs. rectangular rearing tanks) of convict cichlids (Archocentrus nigrofasciatus) and tested their use of navigational cues. All the fish used geometric information to navigate when no features were present. When features were present, the fish used geometric and featural information separately. If cues were in conflict, fish raised in a circular tank showed significantly less use of geometric information than fish raised in a rectangular tank. Thus, the ability to use geometry to navigate does not require exposure to angular geometric cues during rearing, though rearing environment affects the dominance of featural and geometric cues.
许多物种的动物都会利用封闭矩形环境的几何形状来重新定向,即使存在更具信息性的特征线索。操纵饲养环境会影响空间任务的表现,但其对几何导航线索与特征导航线索使用的影响尚不清楚。我们的研究改变了 convict 丽鱼(黑带丽体鱼)饲养环境中可用的几何信息(圆形与矩形饲养池),并测试了它们对导航线索的使用。当没有特征时,所有的鱼都利用几何信息来导航。当有特征时,鱼会分别使用几何和特征信息。如果线索相互冲突,在圆形饲养池中饲养的鱼比在矩形饲养池中饲养的鱼显著更少使用几何信息。因此,利用几何形状导航的能力并不需要在饲养期间接触角几何线索,尽管饲养环境会影响特征线索和几何线索的主导地位。