They may struggle to hide them. Probably the most common early sign is short-term memory loss.

VOA: special.2011.02.08

Well, there I might be factoring in the frontal lobe because much of the short-term memory in particular is in the frontal lobe.

那么,额叶会发挥作用,因为大部分的短期记忆,都由额叶进行处理

耶鲁公开课 - 聆听音乐课程节选

Probably the most common early sign is short-term memory loss.

VOA: special.2009.09.15