Siniscalchi Marcello, Padalino Barbara, Aubé Lydiane, Quaranta Angelo
a Department of Veterinary Medicine , University of Bari "Aldo Moro" , Bari , Italy.
Laterality. 2015;20(4):483-500. doi: 10.1080/1357650X.2015.1005629. Epub 2015 Jan 30.
Lateralization in horses, Equus caballus, has been reported at both motor and sensory levels. Here we investigated left- and right-nostril use in 12 jumper horses freely sniffing different emotive stimuli. Results revealed that during sniffing at adrenaline and oestrus mare urine stimuli, horses showed a clear right-nostril bias while just a tendency in the use of the right nostril was observed during sniffing of other odours (food, cotton swab and repellent). Sniffing at adrenaline and urine odours was also accompanied by increasing cardiac activity and behavioural reactivity strengthening the role of the right hemisphere in the analysis of intense emotion and sexual behaviour.
马（Equus caballus）在运动和感觉层面都存在偏侧化现象。在此，我们研究了12匹跳跃马在自由嗅闻不同情感刺激时左右鼻孔的使用情况。结果显示，在嗅闻肾上腺素和发情母马尿液刺激时，马表现出明显的右鼻孔偏好，而在嗅闻其他气味（食物、棉签和驱虫剂）时，仅观察到使用右鼻孔的一种倾向。嗅闻肾上腺素和尿液气味还伴随着心脏活动的增加和行为反应性增强，强化了右半球在强烈情感和性行为分析中的作用。
