Chakravarty Ambar
Department of Neurology, Vivekananda Institute of Medical Science, Calcutta, India.
Ann Indian Acad Neurol. 2012 Apr;15(2):71-5. doi: 10.4103/0972-2327.94986.
The nondominant inferior parietal lobule is probably a major "store house" of artistic creativity. The ventromedial prefrontal lobe (VMPFL) is supposed to be involved in creative cognition and the dorsolateral prefrontal lobe (DLPFL) in creative output. The conceptual ventral and dorsal visual system pathways likely represent the inferior and superior longitudinal fasciculi. During artistic production, conceptualization is conceived in the VMPFL and the executive part is operated through the DLFPL. The latter transfers the concept to the visual brain through the superior longitudinal fasciculus (SLF), relaying on its path to the parietal cortex. The conceptualization at VMPFL is influenced by activity from the anterior temporal lobe through the uncinate fasciculus and limbic system pathways. The final visual image formed in the visual brain is subsequently transferred back to the DLPFL through the SLF and then handed over to the motor cortex for execution. During art appreciation, the image at the visual brain is transferred to the frontal lobe through the SLF and there it is matched with emotional and memory inputs from the anterior temporal lobe transmitted through the uncinate fasiculus. Beauty is perceived at the VMPFL and transferred through the uncinate fasciculus to the hippocampo-amygdaloid complex in the anterior temporal lobe. The limbic system (Papez circuit) is activated and emotion of appreciation is evoked. It is postulated that in practice the entire circuitry is activated simultaneously.
非优势下顶叶小叶可能是艺术创造力的主要“储存库”。腹内侧前额叶皮层（VMPFL）被认为参与创造性认知，而背外侧前额叶皮层（DLPFL）参与创造性输出。概念性腹侧和背侧视觉系统通路可能分别代表下纵束和上纵束。在艺术创作过程中，概念化在腹内侧前额叶皮层中构思形成，执行部分则通过背外侧前额叶皮层运作。后者通过上纵束（SLF）将概念传递至视觉脑区，并在其通向顶叶皮层的路径上进行中继。腹内侧前额叶皮层的概念化受到来自颞叶前部通过钩束和边缘系统通路的活动影响。在视觉脑中形成的最终视觉图像随后通过上纵束传回背外侧前额叶皮层，然后传递至运动皮层进行执行。在艺术欣赏过程中，视觉脑中的图像通过上纵束传递至额叶，在那里它与通过钩束从颞叶前部传来的情感和记忆输入相匹配。美感在腹内侧前额叶皮层被感知，并通过钩束传递至颞叶前部的海马 - 杏仁复合体。边缘系统（帕佩兹环路）被激活，引发欣赏的情感。据推测，在实际情况中，整个神经回路会同时被激活。
