论文标题
在三维多重对象跟踪任务（3D-mot）的不同阶段，EEG神经振荡的重大变化意味着注意力和工作记忆的角色不同
Significant changes in EEG neural oscillations during different phases of three-dimensional multiple object tracking task (3D-MOT) imply different roles for attention and working memory
论文作者
论文摘要
我们在动态环境中跟踪多个物体的能力使我们能够执行日常任务，例如驾驶，运动运动和在拥挤的购物中心行走。尽管有关多个对象跟踪（MOT）任务的三十年文献，但基本和相互交织的神经机制仍然知之甚少。在这里，我们研究了脑电图（EEG）神经相关性及其在3D-MOT任务的三个阶段的变化，即识别，跟踪和回忆。我们记录了24名参与者的脑电图活动，而他们执行了3D-MOT任务，其中有1、2或3个目标，其中一些试验被横向进行，有些则没有。我们观察到从跟踪到回忆时，集中注意力与工作记忆过程之间似乎是一种交接。我们的发现表明，在跟踪过程中，从额叶区域的三角洲和theta频率有很强的抑制作用，随后在召回期间对这些相同频率的激活强烈（重新）激活。我们的结果还显示了在识别阶段和召回阶段，但在跟踪过程中均未显示对侧延迟活性（CDA）。
Our ability to track multiple objects in a dynamic environment enables us to perform everyday tasks such as driving, playing team sports, and walking in a crowded mall. Despite more than three decades of literature on multiple object tracking (MOT) tasks, the underlying and intertwined neural mechanisms remain poorly understood. Here we looked at the electroencephalography (EEG) neural correlates and their changes across the three phases of a 3D-MOT task, namely identification, tracking and recall. We recorded the EEG activity of 24 participants while they were performing a 3D-MOT task with either 1, 2 or 3 targets where some trials were lateralized and some were not. We observed what seems to be a handoff between focused attention and working memory processes when going from tracking to recall. Our findings revealed a strong inhibition in delta and theta frequencies from the frontal region during tracking, followed by a strong (re)activation of these same frequencies during recall. Our results also showed contralateral delay activity (CDA) for the lateralized trials, in both the identification and recall phases but not during tracking.
