I didn't have much memory loss at all; didn't find what loss I did have particularly progressive. Memory loss was just for very short term memory things. For instance, we went to a movie during my ECT treatments, and later I could vaguely remember going, but really didn't have memory for the plot/details. Not a big deal. Saw the movie again later. That kind of thing. I didn't lose memory for anything long-term like job skills, family memories, etc.