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首页> 外文期刊>Cell and Tissue Research >Naturally occurring neuronal plasticity in visual wulst of the Baya weaver, Ploceus philippinus (Linnaeus, 1766)
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Naturally occurring neuronal plasticity in visual wulst of the Baya weaver, Ploceus philippinus (Linnaeus, 1766)

机译：巴亚韦弗（Ploceus philippinus）的视觉蠕动中自然发生的神经元可塑性（Linnaeus，1766）

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摘要

The visual wulst (VW), the rostro-dorsal surface of the avian telencephalon extending from the midline to the lateral region of the brain, is a laminated "bulge" consisting in four histologically distinct rostro-caudally arranged laminae with a specific sequence: hyperpallium apicale, interstitial nucleus of hyperpallium apicale, hyperpallium intercalatum and hyperpallium densocellulare. The VW has been proposed to be the avian equivalent of the mammalian striate cortex. Various behavioral studies including lesion experiments have indicated the importance of the VW, which receives visual and/or auditory cues. We have investigated qualitatively and quantitatively the fascinating structural changes occurring in VW neurons of the seasonally breeding bird, Ploceus philippinus (Linnaeus, 1766). The Golgi method was used to study the seasonal fluctuations in the neuronal classes of the VW with regard to dendritic thickness, spine morphology and spine density during both the non-breeding and breeding periods of male Baya weaver birds. Significant variations in parameters studied among the various neuronal types located in the different well-demarcated regions of the VW are believed to contribute to the functional differences reported among the wulst regions. Thus, this study extends our view demonstrating naturally occurring neuronal plasticity in a seasonally dynamic avian brain of a bird that hones not only its learning and memorizing system but also its social and sexual system in preparation for the breeding season.
机译：视觉腹壁（VW）是禽脑末梢的从大脑中线延伸到大脑外侧区域的前背表面，是一个分层的“凸起”，由四个在组织学上不同的，在后尾端排列的，具有特定顺序的椎板组成：高：阿皮卡莱，高皮细胞的间质核阿皮卡莱，cal间皮和高皮细胞。大众已经提出与哺乳动物的纹状皮质相当。包括病变实验在内的各种行为研究表明，大众汽车的重要性在于，大众汽车可以接受视觉和/或听觉提示。我们已经定性和定量地研究了季节性繁殖鸟类菲律宾loc（Ploceus philippinus）的大众神经元中发生的迷人结构变化（Linnaeus，1766）。高尔基法用于研究雄性八a织女鸟非繁殖期和繁殖期的树突厚度，脊柱形态和脊柱密度方面的大众神经元类别的季节性波动。据信，位于大众不同界线的各种神经元类型之间研究的参数存在显着差异，这是造成报道的最坏区域之间功能差异的原因。因此，这项研究扩展了我们的观点，表明了在季节性变化的禽类大脑中自然发生的神经元可塑性，该鸟类不仅在学习和记忆系统上，而且在准备繁殖季节时都在磨练其社会和性系统。

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