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首页> 外文期刊>The European Journal of Neuroscience >The pyramidal neuron in occipital, temporal and prefrontal cortex of the owl monkey (Aotus trivirgatus): regional specialization in cell structure.
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The pyramidal neuron in occipital, temporal and prefrontal cortex of the owl monkey (Aotus trivirgatus): regional specialization in cell structure.

机译：猫头鹰猴（Aotus trivirgatus）枕叶，颞叶和额叶前额叶的锥体神经元：细胞结构的区域专长。

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摘要

Recent studies have revealed marked regional variation in pyramidal cell morphology in primate cortex. In particular, pyramidal cells in human and macaque prefrontal cortex (PFC) are considerably more spinous than those in other cortical regions. PFC pyramidal cells in the New World marmoset monkey, however, are less spinous than those in man and macaques. Taken together, these data suggest that the pyramidal cell has become more branched and more spinous during the evolution of PFC in only some primate lineages. This specialization may be of fundamental importance in determining the cognitive styles of the different species. However, these data are preliminary, with only one New World and two Old World species having been studied. Moreover, the marmoset data were obtained from different cases. In the present study we investigated PFC pyramidal cells in another New World monkey, the owl monkey, to extend the basis for comparison. As in the New World marmoset monkey, prefrontal pyramidal cells in owl monkeys have relatively few spines. These species differences appear to reflect variation in the extent to which PFC circuitry has become specialized during evolution. Highly complex pyramidal cells in PFC appear not to have been a feature of a common prosimian ancestor, but have evolved with the dramatic expansion of PFC in some anthropoid lineages.
机译：最近的研究表明，灵长类皮质的锥体细胞形态存在明显的区域差异。特别是，人和猕猴前额叶皮层（PFC）中的锥体细胞比其他皮质区域的锥体细胞明显多刺。然而，新世界mar猴中的PFC锥体细胞的棘突少于人和猕猴中的棘突。综上所述，这些数据表明，在仅某些灵长类谱系的PFC进化过程中，锥体细胞变得更加分支和更加多刺。在确定不同物种的认知方式时，这种专业化可能具有根本的重要性。但是，这些数据只是初步的，仅研究了一个新世界和两个旧世界物种。此外，the猴的数据是从不同情况下获得的。在本研究中，我们研究了另一只新大陆猴子猫头鹰猴子中的PFC锥体细胞，以扩大比较的基础。就像在新世界monkey猴中一样，猫头鹰猴中的前额锥体细胞的刺相对较少。这些物种差异似乎反映了PFC电路在进化过程中变得专业化程度的变化。 PFC中高度复杂的锥体细胞似乎并不是普通的祖先祖先的特征，而是随着某些类人动物谱系中PFC的急剧扩展而进化的。

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