Auditory laterality in a nocturnal, fossorial marsupial (Lasiorhinus latifrons) in response to bilateral stimuli

Descovich, K. A., Reints Bok, T. E., Lisle, A. T. and Phillips, C. J. C. (2013) Auditory laterality in a nocturnal, fossorial marsupial (Lasiorhinus latifrons) in response to bilateral stimuli. Laterality, 18 1: 32-43. doi:10.1080/1357650X.2011.626562


Author Descovich, K. A.
Reints Bok, T. E.
Lisle, A. T.
Phillips, C. J. C.
Title Auditory laterality in a nocturnal, fossorial marsupial (Lasiorhinus latifrons) in response to bilateral stimuli
Formatted title
Auditory laterality in a nocturnal, fossorial marsupial (Lasiorhinus latifrons) in response to bilateral stimuli
Journal name Laterality   Check publisher's open access policy
ISSN 1357-650X
1464-0678
Publication date 2013-01
Year available 2012
Sub-type Article (original research)
DOI 10.1080/1357650X.2011.626562
Volume 18
Issue 1
Start page 32
End page 43
Total pages 12
Place of publication East Sussex, United Kingdom
Publisher Psychology Press
Collection year 2013
Language eng
Formatted abstract
Behavioural lateralisation is evident across most animal taxa, although few marsupial and no fossorial species have been studied. Twelve wombats (Lasiorhinus latifrons) were bilaterally presented with eight sounds from different contexts (threat, neutral, food) to test for auditory laterality. Head turns were recorded prior to and immediately following sound presentation. Behaviour was recorded for 150 seconds after presentation. Although sound differentiation was evident by the amount of exploration, vigilance, and grooming performed after different sound types, this did not result in different patterns of head turn direction. Similarly, left-right proportions of head turns, walking events, and food approaches in the post-sound period were comparable across sound types. A comparison of head turns performed before and after sound showed a significant change in turn direction (χ2 1=10.65, p=.001) from a left preference during the pre-sound period (mean 58% left head turns, CI 49-66%) to a right preference in the post-sound (mean 43% left head turns, CI 40-45%). This provides evidence of a right auditory bias in response to the presentation of the sound. This study therefore demonstrates that laterality is evident in southern hairy-nosed wombats in response to a sound stimulus, although side biases were not altered by sounds of varying context.
Keyword Wombat
Behaviour
Laterality
Auditory
Marsupial
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes First published online: 6 January 2012.

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2013 Collection
School of Veterinary Science Publications
 
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