Evocog Group, Instituto de Física Interdisciplinar y Sistemas Complejos (IFISC), Universidad de las Islas Baleares y Consejo Superior de Investigaciones Científicas, 07122 Palma de Mallorca, Spain.
Proc Natl Acad Sci U S A. 2013 Jun 18;110 Suppl 2(Suppl 2):10454-61. doi: 10.1073/pnas.1302855110. Epub 2013 Jun 10.
Neuroimage experiments have been essential for identifying active brain networks. During cognitive tasks as in, e.g., aesthetic appreciation, such networks include regions that belong to the default mode network (DMN). Theoretically, DMN activity should be interrupted during cognitive tasks demanding attention, as is the case for aesthetic appreciation. Analyzing the functional connectivity dynamics along three temporal windows and two conditions, beautiful and not beautiful stimuli, here we report experimental support for the hypothesis that aesthetic appreciation relies on the activation of two different networks, an initial aesthetic network and a delayed aesthetic network, engaged within distinct time frames. Activation of the DMN might correspond mainly to the delayed aesthetic network. We discuss adaptive and evolutionary explanations for the relationships existing between the DMN and aesthetic networks and offer unique inputs to debates on the mind/brain interaction.
神经影像学实验对于识别活跃的大脑网络至关重要。在认知任务中，例如审美欣赏，这些网络包括属于默认模式网络（DMN）的区域。从理论上讲，在需要注意力的认知任务中，DMN 的活动应该会中断，审美欣赏就是这种情况。通过分析三个时间窗口和两种条件（美丽和不美丽的刺激）下的功能连接动态，我们在这里报告了实验支持的假设，即审美欣赏依赖于两个不同网络的激活，一个是初始审美网络，另一个是延迟审美网络，它们在不同的时间框架内参与。DMN 的激活可能主要对应于延迟的审美网络。我们讨论了 DMN 和审美网络之间存在的关系的适应和进化解释，并为关于心智/大脑相互作用的争论提供了独特的见解。
