Andreescu Carmen, Aizenstein Howard
Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA.
Curr Top Behav Neurosci. 2012;11:269-87. doi: 10.1007/7854_2011_175.
There are well-established patterns of structural brain changes associated with aging. The change in brain volume with age and with the diseases of aging presents a particular challenge for MRI studies in the elderly. Structural MRI is important for studies in normal aging, late-life depression, dementia, Alzheimer disease and other cognitive disorders to examine how age-associated changes in neuroanatomy are associated with specific age-related changes in brain function. Functional MRI has been a major advance for the fields of cognitive and affective neuroscience by allowing investigators to test theories of the underlying neural pathways controlling cognitive and emotional processes. In this chapter, we will review the contribution of MRI studies to late-life mood and anxiety disorders: major depression, bipolar disorder and anxiety disorders in late-life.
与衰老相关的大脑结构变化模式已得到充分证实。随着年龄增长以及衰老相关疾病的出现,脑容量的变化给老年人群的磁共振成像(MRI)研究带来了特殊挑战。结构MRI对于正常衰老、晚年抑郁症、痴呆症、阿尔茨海默病及其他认知障碍的研究至关重要,可用于检查神经解剖结构中与年龄相关的变化如何与大脑功能中特定的年龄相关变化相关联。功能MRI通过让研究人员能够测试控制认知和情感过程的潜在神经通路理论,在认知和情感神经科学领域取得了重大进展。在本章中,我们将回顾MRI研究对晚年情绪和焦虑障碍(包括重度抑郁症、双相情感障碍和晚年焦虑症)的贡献。