Arid
DOI10.1007/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
ISSN0092-8240
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
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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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