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Topography of vision and behaviour

Smolka, Jochen LU and Hemmi, Jan M. (2009) In Journal of Experimental Biology 212. p.3522-3532
Abstract
Given the great range of visual systems, tasks and habitats, there is surprisingly little experimental evidence of how visual

limitations affect behavioural strategies under natural conditions. Analysing this relationship will require an experimental system

that allows for the synchronous measurement of visual cues and visually guided behaviour. The first step in quantifying visual

cues from an animal’s perspective is to understand the filter properties of its visual system. We examined the first stage of visual

processing – sampling by the ommatidial array – in the compound eye of the fiddler crab Uca vomeris. Using an in vivo

pseudopupil method we determined sizes and viewing directions of... (More)
Given the great range of visual systems, tasks and habitats, there is surprisingly little experimental evidence of how visual

limitations affect behavioural strategies under natural conditions. Analysing this relationship will require an experimental system

that allows for the synchronous measurement of visual cues and visually guided behaviour. The first step in quantifying visual

cues from an animal’s perspective is to understand the filter properties of its visual system. We examined the first stage of visual

processing – sampling by the ommatidial array – in the compound eye of the fiddler crab Uca vomeris. Using an in vivo

pseudopupil method we determined sizes and viewing directions of ommatidia and created a complete eye map of optical and

sampling resolution across the visual field. Our results reveal five distinct eye regions (ventral, dorsal, frontal, lateral and medial)

which exhibit clear differences in the organisation of the local sampling array, in particular with respect to the balance of

resolution and contrast sensitivity. We argue that, under global eye space constraints, these regional optimisations reflect the

information content and behavioural relevance of the corresponding parts of the visual field. In demonstrating the tight link

between visual sampling, visual cues and behavioural strategies, our analysis highlights how the study of natural behaviour and

natural stimuli is essential to our understanding and interpretation of the evolution and ecology of animal behaviour and the

design of sensory systems. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Uca vomeris, compound eye, eye map, resolution, Crustacea, visual ecology.
in
Journal of Experimental Biology
volume
212
pages
3522 - 3532
publisher
The Company of Biologists Ltd
external identifiers
  • scopus:70350228579
ISSN
1477-9145
DOI
10.1242/jeb.032359
language
English
LU publication?
no
id
1033824f-3124-4d23-b25c-5acaa48df9ae (old id 2254706)
alternative location
http://jeb.biologists.org/content/212/21/3522.full
date added to LUP
2012-01-16 13:38:06
date last changed
2017-10-22 03:52:01
@article{1033824f-3124-4d23-b25c-5acaa48df9ae,
  abstract     = {Given the great range of visual systems, tasks and habitats, there is surprisingly little experimental evidence of how visual<br/><br>
limitations affect behavioural strategies under natural conditions. Analysing this relationship will require an experimental system<br/><br>
that allows for the synchronous measurement of visual cues and visually guided behaviour. The first step in quantifying visual<br/><br>
cues from an animal’s perspective is to understand the filter properties of its visual system. We examined the first stage of visual<br/><br>
processing – sampling by the ommatidial array – in the compound eye of the fiddler crab Uca vomeris. Using an in vivo<br/><br>
pseudopupil method we determined sizes and viewing directions of ommatidia and created a complete eye map of optical and<br/><br>
sampling resolution across the visual field. Our results reveal five distinct eye regions (ventral, dorsal, frontal, lateral and medial)<br/><br>
which exhibit clear differences in the organisation of the local sampling array, in particular with respect to the balance of<br/><br>
resolution and contrast sensitivity. We argue that, under global eye space constraints, these regional optimisations reflect the<br/><br>
information content and behavioural relevance of the corresponding parts of the visual field. In demonstrating the tight link<br/><br>
between visual sampling, visual cues and behavioural strategies, our analysis highlights how the study of natural behaviour and<br/><br>
natural stimuli is essential to our understanding and interpretation of the evolution and ecology of animal behaviour and the<br/><br>
design of sensory systems.},
  author       = {Smolka, Jochen and Hemmi, Jan M.},
  issn         = {1477-9145},
  keyword      = {Uca vomeris,compound eye,eye map,resolution,Crustacea,visual ecology.},
  language     = {eng},
  pages        = {3522--3532},
  publisher    = {The Company of Biologists Ltd},
  series       = {Journal of Experimental Biology},
  title        = {Topography of vision and behaviour},
  url          = {http://dx.doi.org/10.1242/jeb.032359},
  volume       = {212},
  year         = {2009},
}