dementation

例句：

1. 1. 精神错乱；痴呆；智力衰退2.
   在医学上
2. 3.
   在心理学上
3. 1. The patient's memory was severely impaired due to the stroke.
   由于中风，患者的记忆力严重受损。
4. 2. The elderly often suffer from dementia as they age.
   随着年龄的增长，老年人常常患有痴呆症。
5. 3. The diagnosis of dementia is a complex process that requires a thorough examination.
   痴呆症的诊断是一个复杂的过程，需要进行彻底的检查。