Thanks so much for your reply, Elio! I wonder if changes in neuronal pathways can be observed by way of any kind of technology? The theory sounds good - of BWRT - but I wonder about the evidence, or even possibility of evidence. In any case, I have NOT had any bad effects. One does not actually work off a very specific good memory so this probably helps - it is more of an imaginative construct with elements of 'good memories'? I have had positive results with respect to very particular memories but so far I'm not sure it's generalising to the overall tone of my mood, attitude, automatic responses etc. I'd imagine it to be more effective with PTSD than CPTSD which is more like what I have. Still, it is working far better than I thought it would so I will continue....