Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11538-010-9547-y |
Precision and Reliability in Animal Navigation | |
Pfuhl, G.1; Tjelmeland, H.2; Biegler, R.1 | |
通讯作者 | Biegler, R. |
来源期刊 | BULLETIN OF MATHEMATICAL BIOLOGY
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ISSN | 0092-8240 |
出版年 | 2011 |
卷号 | 73期号:5页码:951-977 |
英文摘要 | Uncertainty plays an important role in several navigational computations. Navigation typically depends on multiple sources of information, and different navigational systems may operate both in parallel and in combination. The optimal combination of information from different sources must take into account the uncertainty of that information. We distinguish between two types of spatial uncertainty, precision, and reliability. Precision is the inverse variance of the probability distribution that describes the information a cue contributes to an organism’s knowledge of its location. Reliability is the probability of the cue being correctly identified, or the probability of a cue being related to a target location. We argue that in most environments, precision and reliability are negatively correlated. In case of cue conflict, precision and reliability must be traded off against each other. We offer a quantitative description of optimal behaviour. Knowledge of uncertainty is also needed to optimally determine the point where a search should start when an organism has more precise spatial information in one of the spatial dimensions. We show that if there is any cost to travel, it is advantageous to head off to one side of the most likely target location and head toward the target. The magnitude of the optimal offset depends on both travel cost and search cost. |
英文关键词 | Uncertainty Ambiguity Bayesian computation Search Error compensation |
类型 | Article |
语种 | 英语 |
国家 | Norway |
收录类别 | SCI-E |
WOS记录号 | WOS:000289246600002 |
WOS关键词 | PATH-INTEGRATION ; LANDMARK STABILITY ; DESERT ANTS ; CATAGLYPHIS-FORTIS ; BAYESIAN-INFERENCE ; CUE INTEGRATION ; PLACE CELLS ; PIGEONS USE ; INFORMATION ; UNCERTAINTY |
WOS类目 | Biology ; Mathematical & Computational Biology |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Mathematical & Computational Biology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/167491 |
作者单位 | 1.NTNU, Psykol Inst, N-7491 Trondheim, Norway; 2.NTNU, Inst Matemat Fag, N-7491 Trondheim, Norway |
推荐引用方式 GB/T 7714 | Pfuhl, G.,Tjelmeland, H.,Biegler, R.. Precision and Reliability in Animal Navigation[J],2011,73(5):951-977. |
APA | Pfuhl, G.,Tjelmeland, H.,&Biegler, R..(2011).Precision and Reliability in Animal Navigation.BULLETIN OF MATHEMATICAL BIOLOGY,73(5),951-977. |
MLA | Pfuhl, G.,et al."Precision and Reliability in Animal Navigation".BULLETIN OF MATHEMATICAL BIOLOGY 73.5(2011):951-977. |
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