Attentional Recovery: Behavioral, ERP and fMRI Measures

描述（由申请人提供）： 本研究旨在探讨半侧空间忽略患者在行为恢复过程中的电生理和血流动力学变化。偏侧空间忽略是中风引起的一种常见损害，并且是预后不良的预后。忽视的患者在注意与其病变相对的一侧空间时受损。因此，为了跟踪恢复，拟议的项目将检查中风患者在注意力任务上的表现变化。为了补充行为数据，事件相关电位（ERP）和功能性磁共振成像（fMRI）方法将用于提供恢复的神经生物学特征。电生理数据将有助于表征注意定向的任何时间变化。功能磁共振成像数据将提供信息，说明哪些大脑区域（如果有的话）在功能上补偿受损组织。虽然这些数据将有助于注意力分配的心理模型，但它们也将重要地拓宽对忽视恢复（特别是）和神经可塑性（一般）的理解。希望这些数据，沿着其他研究人员的调查，将启发新的康复方法中风患者的半侧空间忽视。

DESCRIPTION (provided by applicant): The current research will characterize the electrophysiological and hemodynamic changes coincident with behavioral recovery in patients with hemispatial neglect. Hemispatial neglect is a prevalent impairment caused by stroke and is prognostic for poor recovery. Patients with neglect are impaired in attending to the side of space opposite their lesion. Thus, to track recovery, the proposed project will examine changes in stroke patients' performance on an attentional task. To compliment the behavioral data, both event-related potentials (ERPs) and functional magnetic resonance imaging (fMRI) methods will be used to provide a neurobiological profile of recovery. The electrophysiological data will be instrumental in characterizing any temporal changes in attentional orienting. The fMRI data will provide information as to which brain areas, if any, functionally compensate for the damaged tissue. Although the data will contribute to psychological models of attentional allocation, they will also importantly broaden the understanding of recovery from neglect (in particular) and neural plasticity (in general). Hopefully these data, along with other researchers' investigations, will inspire new rehabilitative approaches for stroke patients with hemispatial neglect.