Olfactory evolution and behavioral ecology in primates
Olfactory evolution and behavioral ecology in primates
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DOI：
10.1002/ajp.20251
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发表时间：
2006-06-01
影响因子：
2.4
通讯作者：
Barton, RA
中科院分区：
文献类型：
--
作者：
Barton, RA
灵长类动物通常被认为是“视觉”哺乳动物，一些比较研究强调了视觉在灵长类动物神经和社会认知特化中的作用。在这里，我探讨嗅觉系统的作用，比较体积数据的系统发育分析。主嗅球（MOB）和副嗅球（AOB）的相对大小随其功能的不同而呈现出不同的进化模式。虽然有一些证据表明这两个系统的相关进化，但这只在一个分支（链鼻）中很明显。正如预测的那样，MOB主要与生态因素（活动期和饮食）相关，而AOB与社会和交配系统相关。相关的嗅觉结构（即，梨状皮质和杏仁核）表现出与AOB相关的进化，但与MOB无关，杏仁核的皮质基底外侧部分表现出与阔鼻类中社会群体大小的相关性，类似于在AOB中观察到的。这些社会系统的相关性支持了这样一种观点，即社会大脑的概念有一个嗅觉维度。
Primates are usually thought of as "visual" mammals, and several comparative studies have emphasized the role of vision in primate neural and sociocognitive specialization. Here I explore the role of olfactory systems, using phylogenetic analysis of comparative volumetric data. The relative sizes of the main olfactory bulb (MOB) and accessory olfactory bulb (AOB) tend to show different evolutionary patterns in accordance with their different functions. Although there is some evidence of correlated evolution of the two systems, this is apparent in only one clade (the strepsirhines). As predicted, the MOBs correlate predominantly with ecological factors (activity period and diet), while the AOBs correlate with social and mating systems. Related olfactory structures (i.e., the piriform cortex and amygdala) exhibit correlated evolution with the AOBs but not with the MOBs, and the corticobasolateral part of the amygdala exhibits a correlation with social group size in platyrrhines similar to that observed for the AOB. These social system correlations support the idea that there is an olfactory dimension to the concept of the social brain.