Branson N J, Rogers L J
Centre for Neuroscience and Animal Behavior.
J Comp Psychol. 2006 Aug;120(3):176-183. doi: 10.1037/0735-7036.120.3.176.
The authors investigated the relationship between degree of lateralization and noise phobia in 48 domestic dogs (Canis familiaris) by scoring paw preference to hold a food object and relating it to reactivity to the sounds of thunderstorms and fireworks, measured by playback and a questionnaire. The dogs without a significant paw preference were significantly more reactive to the sounds than the dogs with either a left-paw or right-paw preference. Intense reactivity, therefore, is associated with a weaker strength of cerebral lateralization. The authors note the similarity between their finding and the weaker hand preferences shown in humans suffering extreme levels of anxiety and suggest neural mechanisms that may be involved.
作者通过对48只家犬（犬属）抓取食物对象的爪偏好进行评分，并将其与通过声音回放和问卷调查测量的对雷暴和烟花声音的反应性相关联，研究了大脑偏侧化程度与噪音恐惧症之间的关系。没有明显爪偏好的狗对声音的反应明显比有左爪或右爪偏好的狗更强烈。因此，强烈的反应性与大脑偏侧化程度较弱有关。作者指出他们的发现与患有极端焦虑水平的人类表现出的较弱的用手偏好之间的相似性，并提出了可能涉及的神经机制。
