High density EEG system

认知科学领域逐渐依赖于跨学科方法的应用，包括行为和神经成像方法，因为它们的结合在解决大脑和行为之间的关系问题上具有巨大的潜力。注意力通过调节对传入的感觉信息的处理以及对适当目标和反应的选择来调节行为。在我的实验室里，我们研究注意力如何影响复杂的日常行为。例如，我们感兴趣的是，为什么人类会自动地向别人看的方向看，或者人类是如何注意象征性的视觉信息(例如，手指)的。最近的一些行为研究，包括我自己的研究表明，注意力可能是由这些高度有意义的刺激独一无二地参与的。这组数据有力地预测，人类的大脑可能也专门对行为相关的刺激做出反应。测量大脑皮质(EEG)活动提供了一个独特的机会来研究使人类注意力集中的大脑机制的时间和空间特性。EEG揭示了注意力如何影响感觉处理以及大脑活动的时间特性。解析源建模技术被用来寻找激活的大脑结构的一般空间位置。所要求的脑电系统将被安置在一个多设备环境中(在单独的RTI提案中要求)，其中包括一个双电隔离(DEI)外壳和一个远程眼球追踪器。将脑电放在一个数据采集器中将大大提高我们的研究效率，因为这个封闭物将确保脑电采集的可靠性和准确性，以及明确的数据解释。这种设备对于顺利完成拟议的研究计划是必要的。由于它是为研究人类注意力的行为和神经属性而量身定做的独特配置，它将使人们更好地理解注意力在复杂行为中的作用，并促进创造特殊的HQP训练机会。

The field of cognitive science progressively relies on the application of interdisciplinary methodologies, including behavioral and neuroimaging methods, as their combination has a great potential to address the question of the relationship between brain and behavior. Attention regulates behavior by modulating both the processing of incoming sensory information and the selection of appropriate goals and responses. In my lab, we study how attention influences complex everyday behaviors. For example, we are interested in discovering why humans automatically look in the direction of where others are looking or how humans pay attention to symbolic visual information (e.g., finger point). A number of recent behavioral studies, including my own investigations, suggest that attention may be uniquely engaged by these highly meaningful stimuli. This body of data makes a strong prediction that human brain may also be specialized to respond to behaviorally relevant stimuli. Measuring electrocortical (EEG) activity offers a unique opportunity to investigate the temporal and spatial properties of the brain mechanisms that enable human attention. EEG reveals how attention influences sensory processing as well as the temporal properties of brain activity. Analytical source modeling techniques are used to find general spatial locations of the activated brain structures. The requested EEG system will be housed within a multi-equipment environment (requested in the separate RTI proposal), which includes a double electrically isolated (DEI) enclosure and a remote eye tracker. Housing the EEG within a DEI will greatly enhance our research productivity, as the enclosure will assure the reliability and accuracy of EEG acquisition as well as unambiguous data interpretation. This equipment is necessary for the successful completion of the proposed program of research. Due to its unique configuration tailored for the investigations of behavioral and neural properties of human attention, it will enable better understanding of the role of attention in complex behaviors and facilitate creation of exceptional HQP training opportunities.