Department of Rehabilitation Medicine, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu, Aichi, 474-8511, Japan.
Kinjo University, Hakusan, Ishikawa, Japan.
BMC Neurol. 2020 Nov 24;20(1):425. doi: 10.1186/s12883-020-01994-9.
Aphasia often appears in persons living with dementia; however, aphasia and the mirror phenomenon are rarely present at the same time.
Here, we report a case of fluent conversation with a person in a mirror or a magazine, and examine the underlying mechanism using brain imaging and neuropsychological findings. We found that the appearance of the mirror phenomenon may be associated with a visuospatial dysfunction caused by a decreased function of the posterior region of the right temporal and parietal lobe. Moreover, active talking to a person in a mirror or a person in a magazine could be associated with disinhibition caused by a decline in bilateral frontal lobe function.
This case represents a very valuable and interesting presentation because it is the first report of a long-term follow-up of the course of dementia using neurological imaging, and of the neuropsychological analysis of the mechanism of conversation with a mirror image combined with aphasia.
失语症常出现在痴呆患者中；然而，失语症和镜像现象很少同时出现。
在这里，我们报告了一例流畅对话的人在镜子或杂志，并使用脑成像和神经心理学发现来检查潜在的机制。我们发现，镜像现象的出现可能与由右颞叶和顶叶后部区域功能下降引起的视空间功能障碍有关。此外，与镜子中的人或杂志中的人积极交谈可能与双侧额叶功能下降引起的抑制解除有关。
本例代表了一个非常有价值和有趣的表现，因为这是首次使用神经影像学对痴呆病程进行长期随访的报告，也是对伴有失语症的镜像对话机制进行神经心理学分析的报告。
