Farmer Kate, Krüger Konstanze, Byrne Richard W, Marr Isabell
School of Psychology and Neuroscience, University of St. Andrews, St. Mary's Quad, South Street, St. Andrews, Fife, Scotland, KY16 9JP, UK.
University of Regensburg, Zoology/Evolutionary Biology, Universitaetsstraße 31, 93053, Regensburg, Germany.
Anim Cogn. 2018 Sep;21(5):631-637. doi: 10.1007/s10071-018-1196-9. Epub 2018 Jun 9.
Many studies have been carried out into both motor and sensory laterality of horses in agonistic and stressful situations. Here we examine sensory laterality in affiliative interactions within four groups of domestic horses and ponies (N = 31), living in stable social groups, housed at a single complex close to Vienna, Austria, and demonstrate for the first time a significant population preference for the left side in affiliative approaches and interactions. No effects were observed for gender, rank, sociability, phenotype, group, or age. Our results suggest that right hemisphere specialization in horses is not limited to the processing of stressful or agonistic situations, but rather appears to be the norm for processing in all social interactions, as has been demonstrated in other species including chicks and a range of vertebrates. In domestic horses, hemispheric specialization for sensory input appears not to be based on a designation of positive versus negative, but more on the perceived need to respond quickly and appropriately in any given situation.
许多研究已经针对马在争斗和应激情况下的运动和感觉偏侧性展开。在此，我们研究了四组家养马和矮种马（N = 31）在亲和互动中的感觉偏侧性，这些马生活在稳定的社会群体中，饲养在奥地利维也纳附近的一个单一建筑群里，并首次证明在亲和接近和互动中，群体对左侧存在显著偏好。未观察到性别、等级、社交性、表型、群体或年龄的影响。我们的结果表明，马的右半球特化并不局限于处理应激或争斗情况，而是似乎是所有社会互动处理的常态，正如在包括小鸡和一系列脊椎动物在内的其他物种中所证明的那样。在家养马中，感觉输入的半球特化似乎不是基于积极与消极的指定，而是更多地基于在任何给定情况下快速且适当地做出反应的感知需求。
