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Psychology

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Neuropsychology

Musical Training and Brain Structure with VBM

Description

Musical training can change brain structure, and voxel-based morphometry, or VBM, is one way to measure those changes. This method compares grey matter density across brains on a voxel-by-voxel basis. A voxel is a 3D pixel in an MRI scan, and its brightness relates to tissue density in that region.

Transcript

我们的大脑受经验影响而形成,导致皮层体积发生变化。

例如,某些能力,如学习并掌握第二语言,已被证明能够增加灰质密度(灰质是神经元胞体所在区域),尤其是在额叶等结构中。

在现代技术进步之前,为了测量特定区域的大小,科学家必须 painstakingly( painstakingly 意为“费力地”)勾画出感兴趣区域——这是一项非常繁琐的任务。如今,已存在更为敏感的神经影像技术——称为基于体素的形态学测量(voxel-based morphometry, VBM)——能够捕捉神经解剖结构中微小的体积差异。

根据Gaser和Shlaug以及Bermudez及其同事的前期研究,本视频展示了如何采集结构性磁共振成像数据,并利用基于体素的形态学分析(VBM)来识...

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