Univ Rouen Normandie, CRFDP UR 7475, F-76000 Rouen, France.
J Alzheimers Dis. 2023;94(4):1331-1333. doi: 10.3233/JAD-230731.
Shadowing is a person-following behavior, commonly observed in dementia (e.g., Alzheimer's disease). It may be caused by neuropsychological impairments associated with posterior brain lesions, as Kudo et al. described it in a patient with posterior cortical atrophy and no frontal signs. These authors have suggested that shadowing may arise from the combination of visuospatial impairments, aphasia, apraxia, and prosopagnosia. However, how these symptoms may contribute to shadowing remains unclear. It is suggested that the combination of visuospatial impairments, body representation disorders, and apraxia, may result in complete loss of spatial representations and hence, shadowing behavior.
尾随是一种跟随他人的行为，在痴呆症（如阿尔茨海默病）中很常见。它可能是由与后脑损伤相关的神经心理障碍引起的，正如 Kudo 等人在一名没有额部症状的皮质后萎缩患者中所描述的那样。这些作者认为，尾随可能是由于视空间障碍、失语症、失用症和面容失认症的组合引起的。然而，这些症状如何导致尾随仍然不清楚。有人认为，视空间障碍、身体表象障碍和失用症的组合可能导致空间表象完全丧失，从而导致尾随行为。
