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Laterality
Asymmetries of Brain, Behaviour, and Cognition
Volume 23, 2018 - Issue 5
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Articles

Motor asymmetry in goats during a stepping task

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Pages 599-609 | Received 12 Sep 2017, Accepted 11 Dec 2017, Published online: 19 Dec 2017
 

ABSTRACT

Behavioural lateralization consists of perceptual and motor lateralization and provides adaptive advantages such as a general increase in brain efficiency. Motor laterality refers to the preferred use of either left or right limbs or organs to perform a specific task. We investigated motor laterality in goats (Capra hircus), using the First-stepping Task. During this task, the first foreleg used to step off a board after standing with both forelimbs was recorded. Subjects varied individually in their expression of motor lateralization with 36.6% of subjects showing individual-level asymmetries. However, goats as a group did not show a preference for a specific foreleg or lateralization in general. Our results support the hypothesis that the need to coordinate behaviour among conspecifics might be important for determining the presence of lateralization at the population level. We suggest that future research investigates how social complexity might affect population-level asymmetries, and whether stimuli with high emotional valence impact on lateralization presence and level (i.e., individual or population).

Acknowledgement

We thank Bob Hitch, Gower McCarthy, Samantha Taylor and all the volunteers at Buttercups Sanctuary for Goats (http://www.buttercups.org.uk) for their excellent help and free access to the animals.

Disclosure statement

No potential conflict of interest was reported by the authors.

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