Center for Cognitive Neurosciences, Semel Neuropsychiatric Institute, Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, CA, 90095, USA,
Brain Imaging Behav. 2014 Jun;8(2):251-61. doi: 10.1007/s11682-013-9278-4.
Neuroimaging has rapidly advanced investigations into dysfunction both within and emanating from the hippocampus in early Alzheimer's disease . Focusing on prodromal subjects, we will discuss structural changes to hippocampal subregions, alterations to functional activity both within the hippocampus and elsewhere in the cortex, as well as changes to structural white matter connectivity and changes to functionally correlated patterns during memory performance. We present ample evidence that asymptomatic subjects demonstrate substantial identifiable brain changes before the onset of cognitive decline, but suggest there is significant work yet to be accomplished before applying these findings to individual patients.
神经影像学技术的快速发展推动了对早期阿尔茨海默病中海马内部和海马发出的功能障碍的研究。本文将重点讨论前驱期患者的海马亚区结构变化、海马内部和皮质其他区域功能活动的改变、结构白质连接的改变以及记忆表现时功能相关模式的改变。我们充分证明了无症状患者在认知能力下降之前就已经出现了大量可识别的大脑变化,但我们也认为,在将这些发现应用于个体患者之前,还有大量工作需要完成。