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Title of Journal: Anim Cogn

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Abbravation: Animal Cognition

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Springer Berlin Heidelberg

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DOI

10.1007/s10516-013-9223-6

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ISSN

1435-9456

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Visual discrimination of rotated 3D objects in Mal

Authors: V Schluessel H Kraniotakes H Bleckmann
Publish Date: 2013/08/28
Volume: 17, Issue: 2, Pages: 359-371
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Abstract

Fish move in a threedimensional environment in which it is important to discriminate between stimuli varying in colour size and shape It is also advantageous to be able to recognize the same structures or individuals when presented from different angles such as back to front or front to side This study assessed visual discrimination abilities of rotated threedimensional objects in eight individuals of Pseudotropheus sp using various plastic animal models All models were displayed in two choice experiments After successful training fish were presented in a range of transfer tests with objects rotated in the same plane and in space by 45° and 90° to the side or to the front In one experiment models were additionally rotated by 180° ie shown back to front Fish showed quick associative learning and with only one exception successfully solved and finished all experimental tasks These results provide first evidence for form constancy in this species and in fish in general Furthermore Pseudotropheus seemed to be able to categorize stimuli a range of turtle and frog models were recognized independently of colour and minor shape variations Form constancy and categorization abilities may be important for behaviours such as foraging recognition of predators and conspecifics as well as for orienting within habitats or territoriesWe would like to thank Slawa Braun for help with care taking of animals and maintenance of aquaria and J Mogdans for helpful comments on the manuscript The research reported herein was performed under the guidelines established by the current German animal protection law Most of the experimental work presented herein was conducted by H Strauch as part of her DiplomaThesis at the University of Bonn


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  6. Effects of the menstrual cycle on looking preferences for faces in female rhesus monkeys
  7. Decision-making under risk and ambiguity in low-birth-weight pigs
  8. Female meadow voles, Microtus pennsylvanicus , respond differently to the scent marks of multiple male conspecifics
  9. The impact of landmark properties in shaping exploration and navigation
  10. Concept of uprightness in baboons: assessment with pictures of realistic scenes
  11. Audiovisual integration facilitates monkeys’ short-term memory
  12. The gestural repertoire of the wild chimpanzee
  13. Temporal dynamics of information use in learning and retention of predator-related information in tadpoles
  14. Ultra-rapid categorisation in non-human primates
  15. Functionally referential and intentional communication in the domestic dog: effects of spatial and social contexts
  16. What limits tool use in nonhuman primates? Insights from tufted capuchin monkeys ( Sapajus spp.) and chimpanzees ( Pan troglodytes ) aligning three-dimensional objects to a surface
  17. Effects of number of items on the baboon’s discrimination of same from different visual displays
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