I can't comment on the neurotoxicity of AMT...but I can give some input about healing properties.
I'm pretty sure I have PTSD, after living two years with the demon-bitch gorgonslut devil spawned housemate from perdition, a series of malicious false arrests that always came to nothing after being strung out on bail for nearly a year, pets killed...I need not say more, but I did a self-report PTSD test from a psych profiling site, and it confirmed what I thought.
Accidentally took way more AMT than I intended, being already dissociated to a degree thanks to methoxetamine, long story short, I ended up railing several large doses of AMT, intending to increase the dose of MXE. The result was an incredibly powerful, cathartic and healing trip. Battered constantly with sensory input, it would not stop for anything, just constantly flooded with thoughts and emotions for probably many hours.
After that I felt....somehow liberated. Took it again at a much lower dose, likely around 10-15-20mg, and went for a long hike in the woods. Its changed several things since I first got aquainted with the drug. That day in the woods, went looking for wild mushrooms to eat, found nothing but a few tawny grisettes (Amanita fulva), a false deathcap and possibly a deathcap. Neither are ones I want to eat, the former just because its not one that appeals to my tastes, the latter, well, its obvious from the name that they are not for cooking and eating.
Ended up using the bags I had with me to clear a massive load of litter and trash from the woods. Made me much more aware of the tiniest details of everything. Very physically relaxing, AMT seems in me to have some sort of powerful muscle relaxant properties. Curled up in a little clearing and just watched the wildlife, and let the AMT work its thing. Went into a charming little spanish tapas bar and the serving lass there went out of her way to give me some fantastic service. People seem to want to help out, or otherwise somehow go out of their way to be good while I am under its influence. Last time, same tapas bar, someone I barely spoke to just waved some money at me and told me I was getting my supper paid for. Complete random person, didn't speak to her, just sat at a close table, this 50-60something lady just randomly decided that I was not going to be paying for my pints and my calamari.
Every time I do AMT, there is a very pronounced afterglow, that lasts quite some time. No comedowns as yet. It opens up a psychological state where I am able to work through my issues. Sometimes it almost appears like these psychological troubles get worked through for me, without my conscious input, by my subconscious. The drug itself fixes nothing, it just opens up that place within a person where they themselves can achieve these things without any psychological blocks or subconscious shutting down.
I'm just waiting for my damned course of metronidazole to be over. Last couple of tablets of the bloody stuff, then a 48 hour washout period. Very likely that metronidazole, aside from the possible alcohol reaction (off topic, but I accidentally, in a moment of extreme stress, after some shite really hit the fan one night, necked a pint of beer that was pretty much put in front of me, then thought 'oh..BUGGER! I've gone and poisoned myself', but no disulfiram/coprine type reaction at all) appears to have some sort of serotonergic properties and has been implicated in fatal serotonin syndrome. Then I'm off to the woods again, to do some more personal work.
Afterglow lasts many days, couldn't say how long, but a good while, leaves me clear-headed, with no PTSD hyperarousal, seems to have long lasting and strong anxiolytic effects, stronger I would say than benzos, which merely numb a person to their fears and stresses.
Not a drug to be abused, and certainly I would NOT reccomend it for a club, for those people who are so inclined, I always take a full dose of aspirin, and a glass of effervescent magnesium sulfate antacid product, the former because AMT appears to raise body temperature quite significantly, its a very weak MAOI I believe, and this is probably the reason, in combination with a serotonin releaser, with dancing and in a club I think it may well be dangerous. The MgSO4 is to eliminate the slight jaw tension, no gurning, but definately wide eyed and with some jaw tension. Oddly, I very much like AMT, but I really do not care for MDxx and its ilk. I'm autie, and MDxx induced openness and people-inclination, thats just not my classically autistic self and it feels fake. AMT feels totally natural to my psyche. Definately going to be a long term ally. Just like Shulgin and Shulgin, and their 2C-B and MDMA, that is the position AMT now has for me. Its helped me heal wounds I never thought I would have a chance to. That job isn't finished yet but there is much progress.
Just don't abuse this drug, I believe in an abusive context the consequences may prove severe.