2015年10月22日 · This study investigated P50 as a potential biomarker of early AD pathology and found that P50 amplitude predicted CSF status in MCI patients. Amyloid- and p-Tau positive …

事件相关电位（event-related potential, ERP）是一种特殊的脑诱发电位，通过有意地赋予刺激以特殊的心理意义，利用多个或多样的刺激所引起的脑的电位。 提供的是关于脑的高级功能的 …

p50听觉erp成分中mlr之后在顶区产生一个幅度较小但较为稳定的正成分,峰值潜伏期在50 ms左右,称为p50,也称为听觉p1。 通过对在猫身上用深部电极记录的P50进行分析,发现P50起源于上 …

MLRs之后就是长潜伏期响应(long-latency responses)，通常的顺序是P50(又叫P1)、N100(又称N1)以及P160(又称P2)，如下图所示。 与视觉N1波形类似，当相邻刺激的间隔减小时，中潜 …

P50 differentiates mild AD patients from age-matched con-trols, and may have utility in predicting MCI conversion to dementia (Golob et al., 2002, 2007). The P50 is a positive-going wave …

2015年10月10日 · This study investigated P50 as a potential biomarker of early AD pathology and found that P50 amplitude predicted CSF status in MCI patients. Amyloid- and p-Tau positive …

Time-locked EEG activity or event-related potential (ERP) helps capture neural activity related to both sensory and cognitive processes. In this article, we attempt to present an overview of the …

2015年10月22日 · We investigated the P50 event-related potential component as a noninvasive biomarker of AD pathology in non-demented elderly. Methods: 36 MCI patients were stratified …

ERP波形通常用正峰和负峰来描述，并用 P1 、 P2 和N1、N2等这样的符号来表示波形的极性与所在时间段或达到峰值的位置，例如，N1表示波形中的第一个负峰，P2表示第二个正峰。 但要 …

This article reviews the applications of the P50 evoked response to paired auditory stimuli (P50 ERP) in the study and evaluation of cognitive impairments after traumatic brain injury (TBI). …