Legge Eric L G, Madan Christopher R, Spetch Marcia L, Ludvig Elliot A
Department of Psychology, University of Alberta, Edmonton, AB, Canada.
Department of Psychology, Boston College, Chestnut Hill, MA, USA.
Anim Cogn. 2016 May;19(3):581-91. doi: 10.1007/s10071-016-0963-8. Epub 2016 Feb 23.
Encoding multiple cues can improve the accuracy and reliability of navigation and goal localization. Problems may arise, however, if one cue is displaced and provides information which conflicts with other cues. Here we investigated how pigeons cope with cue conflict by training them to locate a goal relative to two landmarks and then varying the amount of conflict between the landmarks. When the amount of conflict was small, pigeons tended to integrate both cues in their search patterns. When the amount of conflict was large, however, pigeons used information from both cues independently. This context-dependent strategy for resolving spatial cue conflict agrees with Bayes optimal calculations for using information from multiple sources.
对多个线索进行编码可以提高导航和目标定位的准确性和可靠性。然而，如果一个线索发生位移并提供与其他线索相冲突的信息，可能就会出现问题。在此，我们通过训练鸽子相对于两个地标来定位目标，然后改变地标之间的冲突量，研究了鸽子如何应对线索冲突。当冲突量较小时，鸽子倾向于在其搜索模式中整合两个线索。然而，当冲突量较大时，鸽子则独立使用来自两个线索的信息。这种解决空间线索冲突的上下文相关策略与使用来自多个来源信息的贝叶斯最优计算结果一致。
