hebetude

tylsämielisyys mental Mental lethargy or dullness.
1926, T. E. Lawrence, Seven Pillars of Wisdom:

Incuriousness was the most potent ally of our imposed order; for Eastern government rested not so much on consent or force, as on the common supinity, hebetude, lack-a-daisiness, which gave a minority undue effect.

This dwelling on the past and relative hebetude towards the present – this emotional dulling of current feeling and memory – is nothing like Jimmie’s organic amnesia.