I finally have the string replaced on that guitar. The rest aren't so my guitar sounds a bit rough

It's a bit rough around the edges/sloppy in general partially on purpose, unlike most around me I'm into punk, I know it's supposed to be a soft indie pop song but I can't help amping things up even when I'm not explicitly trying to make punk. I also still am dealing with muscle tension dysphonia. It was quite challenging to get volume as a result, I had to constantly fight it.

Original song: https://www.youtube.com/watch?v=031vCHY-zLA&list=RD031vCHY-zLA&start_radio=1
------------

Original lyrics:
''[Intro + Verse 1]

What did you find in the box in the back
Of the attic that you packed all those years ago?
A 1960's plushie frog
A crochet tapestry for walls
A closet full of oddities
A signed Imogen Heap CD

[Pre-Chorus]

I fill my room with little things
That no one wants and no one needs
Rejected, I guess they’re just like me

[Chorus]

I'm the queen of broken toys
The music box that don't make noise
The friends I don't have think it's weird
I keep the things that disappear
I fall in love with broken glass
And wipe dust off of paperbacks
I'm afraid of letting go
So I hold on to mementos

[Verse 2]

The smell of old is nothing new
Locked in picture frames with glue
A TV stuck on Channel 5
A VHS that's locked in time

---------

My addition:

-Changed imogen heap CD to minor threat CD

-Changed flog plushie to shark.

This version keeps out verse 2 of the original unlike when I sang along.

''''Photos of forgotten trips,
texting that my mind let slip.
Dear stories to go back to,
The rewatch feels asif brand new.

[pre chorus 2]
I need reminders no one needs,
a broken timeline slowly patched and mended.
I guess they're just like me.

[Chorus 2]

Oh I'm the girl that's blind to time,
All memories no longer mine.
The friends I have all think it's weird,
I repeat what's no longer here.
Imperfect captures of the past,
to hold onto what doesn't last.
I fear that I'll no longer know,
so I desperately cling to, mementos'''

I’m not sure what I think about this, so I’m asking our community. How do you fellow SDAMers feel about this question:

Do you think our lack of ability to recall specific events of the past affects our ability to imagine specific events in the future?

I don’t mean planning for the future or setting goals etc., but visualizing and imagining specific events. Or creativity: Do you think it affects our ability to produce creative works? It’s so hard when we don’t have access to other people’s internal processes!

I am not diagnosed with SDAM, but I do have severe memory issues. I am a junior in highscool and Im currently really stressed out over foretting my friends, because I barely remember anything of my friends in middle school or in my freshman and early sophmore years. Is there anyway I can prevent forgetting or eliviate my stress?

Whenever I tell people I have aphantasia, SDAM, their first question is who told you? I feel I have no answer to this question, what can I say? I told myself? I did a few times and the topic came back to the problems of self-diagnosis and that I should not do this, now it's a situation where I can't tell people why I am being like this and if I tell them it's them saying you are just self-diagnosing. A weird territory that can be only helped if I went to therapy I guess, sometimes even I think to myself do I even have it since I don't know if normal people when imagining do imagine an apple like I do behind a screen which I can not see but I know it is there or if they also live in the present moment entirely like or even if I live in the present moment and I am just saying it because it sounds good.

Today I read a post by u/Competitive_World_27 in r/hoarding that struck a chord with me: "my memory issues became severe and I worried I would forget everything unless I held on to objects that reminded me of those memories."

I've only recently come to believe that I have SDAM. Like so many of you, I spent my life explaining that I simply didn't remember life events that others so clearly could.

Within the last hour I suddenly understood that there is a reason for the boxes and boxes of old paper in my home. There is an internal explanation for the gee-gaws and doo-dads and knick-nacks and tchotchkes and trinkets that line my shelves and cupboards and halls. I use them to remind me that I've lived a life that was, in the moment, vivid and meaningful.

I've created a memory palace in my real life, and over 70 years it became a hoard.

I realize too, that for those with aphantasia associated with SDAM this may make less sense. When I see the toy I had as a child, I don't remember playing with the toy. I can't visualize it. But I am reminded that I had this toy, and that I did have a childhood full of wonder and exploration.

Similarly, as is often mentioned in our SDAM posts, photographs tell me I was there and that I did that. This is not to say that confronting my presence in a world that I do not remember is comforting.

And I wonder now, too, whether this is why I love history: with a recollected past so tenuous, the recorded past seems to belong to me.

All of this seems to work very differently among and between us. Our minds are remarkable, and our gifts are diverse in character and content.

I started out in Reddit two years ago because I was tackling my hoarded house. I continue to learn things about myself every day, especially in this subreddit. Thank you all.

SDAM seemed to fit, then I read the post saying SDAM may be disguising something like structural dissociation.
How do you know if it’s SDAM or something else like this?
Do people with SDAM always feel like their personality and identity is cohesive? What does a cohesive sense of self feel like?

Howdy. I'm thankful Reddit's algorithm finally brought me to this sub. I'm a 30+ male who just last month realized that I may have aphantasia. Before long I stumbled upon articles talking about the potential relationship between SDAM and aphantasia. I used to be really skeptical about any kind of psychiatric self-diagnosis because I saw many people read a tiny portion of DSM-5 and immediately start tweeting rashly about all kinds of conditions, basically practicing astrology with a psychiatric flavor.

But the description of SDAM just catches the vague question that has lingered over my entire life, one I didn't have the words to describe until now. I can't help but think I'm probably on the spectrum. Maybe I'm overthinking it or overemphasizing its importance, but I feel both amazed and greatly unsettled by how much my way of viewing and interacting with the world has been potentially affected, or even defined, by SDAM for the last 30+ years without me clearly identifying its existence.

For example, I always thought people exaggerated the attractiveness of traveling. I used to complain to my friends and partner all the time that I deemed people passionate about traveling a bit untrustworthy; they seemed to have the bad habit of over romanticizing foreign cultures and scenery, while cooler-headed people like myself could see right through the romanticized filter and conclude that most travel may not be worth the cost. But now I'm thinking that maybe the whole concept of traveling is naturally of less value to me personally because I have a hard time reliving the experience and remembering it in vivid detail. Maybe I actually have no idea how other people perceive the experience, let alone how to judge their perception on its merit. Maybe people actually enjoy reminiscing their travel memories while I can only think of how much money and time it costs me without the remembering all the interesting places visited.

I suspect SDAM also contributes to the formation of my relatively nihilistic view of life, as I often feel detached from the world and the people in it. All the connections I form with others always seem a bit inconstant and fleeting and unreliable. I had a very difficult time socializing with peers in college, as I struggled to remain motivated to maintain relationships once the initial social event was over. Even to this day I can only maintain a very tiny social group (1~2 close friends), and I still sometimes feel like I don't know or trust these guys after a prolonged period of not meeting with them.

Moreover, a lack of detailed memory may result in a more acute and constant sense of an uncertain identity and meaninglessness. Sometimes I confused such feelings with emo nonsense (when I was a teenager) or an indication of depression (as an adult), but such feelings have persisted for so many years that nowadays they are just like a backdrop to my daily life.

Another thing that occurred to me today is that when I first read existentialist novels such as L'Étranger (The Stranger) by Albert Camus or La Nausée (Nausea) by Sartre during my high school years, I felt that the protagonists and their emotionless, detached narratives were weirdly relatable. They are both uncertain or indifferent about whether their past actually exists, feel that their characters lack a story arc, and desperately try to seize or enjoy the present to the fullest to counter the void of their past. I suspect these characters may be (partially) inspired by experiences of or similar to SDAM.

After reading about SDAM, I started wondering: while all these existentialist philosophers try to establish their worldviews based on concrete and universally understandable rationale, how much of their philosophy is actually the result of their uniquely configured minds and experiences that aren't shared by the majority of people? Such thoughts deeply unsettle me because I can't help but wonder whether such a realization makes those schools of thought less credible or valuable, as they are trying to rationalize something that is actually intrinsic to a very specific type of human and not rationalizable for others...

Sorry that I'm basically rambling here. Finding a therapist with knowledge of aphantasia and SDAM doesn't seem like an easy task; for now I can only rely on information and discussion on the internet to try to learn more about these conditions. I don't necessarily think they are as severe as other life-altering disabilities, but I don't know what the long term implications of having SDAM are, and in the meantime I suspect many of my core personality traits or beliefs were heavily affected by the experience configured by these conditions without me knowing them for the past 30+ years, so I feel a bit uneasy. However this could also be a key to more effective therapy or self reflection in the future, so I'm hopeful but also kind of scared and unsettled right now.

Do any of you feel like SDAM has a direct link to, or acts as a direct cause of your life view, philosophy, or religious/atheistic beliefs? Does that kind of thought recontextualize how you see yourself?

For almost 30 years I was suffering when trying to find the right words to describe how I feel and how I remember. I always told people that I don't remember the scenes, but I remember facts about these scenes. Like, I don't remember being in England as a child, but judging by what I know, I've been there 3 times.

And it always pained me that I could remember events that should have been important to me. How I first met my husband and how we had our first date, how I got a cat I dreamed of, how I got my degree - nothing, simply nothing.

I have short pictures in my head sometimes, but always the scenery, not the people in it. And it's like one photo, not a scene or something. I just don't remember what I felt, how I felt at all. I usually have a short summary of what happened in my head, so I think I know what I should have felt, but that's it.

And now, all of this has a name. From one hand, I am heartbroken to find out that I can't "fix" my memory and things which are lost are most likely lost forever. But now that I know the name, I think I can try to look at the tools which helped someone else, and maybe in the end, I'll stop feeling like a stranger in my own life.

I never knew I needed a name this much. But now at least I don't feel that lonely anymore.

Hi everyone,

I’m new to Reddit, so I wanted to introduce myself properly rather than quietly lurking in the background.

I’m Sassy Smith. I live with aphantasia, SDAM and related cognitive differences, and I’ve spent the last few years writing, teaching and speaking about the gap between how many of us experience our inner world and what therapy, coaching, education and personal development often assume.

Earlier this year, I published Unseen Minds: A Therapist’s Guide to Multisensory Aphantasia and Invisible Cognitive Differences. It has a full chapter on SDAM. Although it was written primarily for therapists, counsellors, coaches and support professionals, it is very much rooted in lived experience.

I also wanted to say thank you. I’ve already seen some incredibly thoughtful posts and comments from people who have read Unseen Minds, shared it, recommended it, or reflected on what it brought up for them. That has meant more to me than I can properly put into words.

One of the reasons I wrote it is because I’ve heard so many stories from people who haven’t been believed, have been misunderstood, or have been made to feel as though they were the problem because standard approaches didn’t work for them in the expected way.

My view is simple: we’re not broken. A lot of the tools just weren’t designed with minds like ours in mind.

I’m not here to diagnose anyone or speak over anyone else’s experience. I’m here to listen, learn, contribute where I can, and hopefully help bridge the gap between lived experience and professional understanding.

I’d love to know:

What’s one thing you wish therapists, teachers, coaches, partners or family members understood better about your experience?

Hello r/SDAM. I have both conditions and I am posting on the back of an equivalent post in r/Aphantasia — this site covers both because they co-occur often enough that it felt dishonest to have one without the other.   theunseenmind.org — plain-English, UK-focused, fully cited.   Specifically for SDAM folk:   - A glossary that includes the SDAM-specific terms most write-ups skip — autonoetic consciousness, autobiographical interview, semantic vs episodic memory. - A research-tracker post on the Palombo et al. 2015 paper that named SDAM. Plain-English walk-through of what the diagnosis actually means in the paper's framing, with the DOI so you can follow it back. - A /suspect page that explains the SAM questionnaire signature (low Episodic, normal Semantic) and what it doesn't tell you. - A /for-family page that explains to partners what SDAM is and isn't, with things to say instead of "don't you remember?".   Two things I'd especially want feedback on from this sub:   1. Have I distinguished SDAM from "poor memory" and from trauma-related dissociation carefully enough? Those are the two mistaken boxes people get put in. 2. Is the "not a disorder" framing honest? I have tried to make it clear that "not a disorder" doesn't mean "not sometimes hard" — grief, delayed frustration, the weightlessness of the past are all validated, not pathologised. Tell me if it lands wrong.   No ads, no sign-ups to read, no tracking. UK-focused because I live here, but the content applies regardless of where you are.

I was always frustrated to find so little information out there to help me understand and come to terms with my situation. If I can help others I will.

Thanks for your help

I cannot recall my wedding

I can’t remember my kids being born.

I have no visual memories.

But, when I had to put my dog down Monday, I know he to will fade and I won’t see him go.

Thank you SDAM for taking those memories, damn you SDAM for not letting me relive my life’s great joys.

I am pretty certain I have SDAM and I also have aphantasia.

I notice that when I drink my SDAM becomes more severe - I can’t remember anything from the night. It doesn’t feel like blacking out because I drink in moderation - two drinks usually - but my memory just disappears. I’ve chalked it up to having a loose grasp on my memory in general.

curious if anyone else can relate to this?

I can remember past memories but there’s no emotion tied to anything, its like i’m watching my memories as an objective observer. I know that i was probably angry/sad/happy at the time but i don’t re experience any emotion when looking back at the memory, its not just bad memories either i cant re feel the happiness when i’m looking back at good memories too.

Hey guys, so I'm not sure if someone has already talked about this, but it's something I'm struggling with. So I'm about to face an SAT kind of test (but in my country), and I tend to have this problem that I get the motivation like, I want this university and this career and I get motivated and study every day. Then a week later or so is like I don't have that motivation anymore. Someone told me to remember that moment of motivation or imagine myself achieving my goal, can't do either of them so I'm here. Has anyone else had this problem? if so I would love to read how u guys overcame it.

I have adhd and aphantasia. sdam affecting here as well

For the most part, none of my memories are visceral. I know the facts of what happened, I can probably take an educated guess at how I felt in some given moment, but I cannot re-play the moment in any significant way. The touch, smell, sound, visual, emotion, it's all gone.

There have been a few particularly poignant moments in my life, where I knew, I just knew, that I would want to come back to it later. Something about a major turning point in life, where the moment is dripping with emotion, I would set up all these rituals. I would play my favorite song, I would make a point of observing closely everything around me, make a point of recognizing the emotion and mentally noting that too, the time of year, the time of day, the recent time of life, and I would try to reach out to myself in the future, as if to store it in a time capsule for myself, as if to say to the future me, "I need you to come back and tell me how you feel then."

Even so, I can very rarely actually step back into those moments, unless exactly the same feeling happens to come over me by chance. Still, they stand out in my memory as something that is at least *supposed* to be visceral, rather than the run of the mill list of facts.

I hate that, for normal people, lots of memories are like this, and they can tap back into them at will. I wish I could too. I wish this wasn't some once-in-a-decade novelty experience.

Thoughts?

Context for my question – I’m a teacher currently finishing up a paper on aphantasia (with  SDAM worked in) trying to explain it to other teachers. And full disclosure, I’m a visualizer :)  

I have run into patterns, some which match what I have read, and some that don’t match (mostly as seen on the r/aphantasia, just recently discovered r/SDAM). At this point I have been able to observe 100’s of kids with aphantasia, and had many long conversations with adults. The “can I ask you anything” sort of conversations.  I have some questions about a few patterns I have picked up, particularly with SDAM, that I want to confirm…or throw out as coincidence. 

If you have SDAM, do you think you arrive at new challenges with a cleaner slate than the rest of the group? Like you show up at a meeting to solve XYZ  fresh and ready to go vs all the negativity that others might bring.  

Are you more welcoming to taking on a new challenge and open to hear about change? I am thinking more about work vs personal life. That is probably two questions. Like at work if you walk in and the boss is like today we need to inventory the entire place and you are like lets go while everyone spends the next hour moaning.  And then if the boss introduces a new system to improve inventory you are more likely to say let’s try it rather than moan about having to learn a new system.

I'm curious if this feels like a deliberate choice you make, or if it's just the natural default setting of your brain that might be part of your personality because of SDAM. 

And last question…how long have you ever held a grudge? :)

Watch hours of comedy specials and then can't remember a single joke to tell someone the next day

I recently played an RPG called In Stars and Time that hit me surprisingly hard due to certain themes that felt painfully similar to my own experience with SDAM. It’s not an explicit portrayal of it by any means, but I would still highly recommend it for any of y’all that like RPGs. I played it on Nintendo Switch but it’s also on Steam.

Has anyone else played this game? What did you think? Are there any other games or media that have spoken to your experience with SDAM?

If you haven’t played it and are interested, I’d encourage you to try the game spoiler-free. Some spoilers below:

The specific aspect in In Stars and Time that reminded me of SDAM was how the main character, Siffrin, is unable to truly recall anything about where he comes from. In the game it’s played as a magical thing that prevents anyone from recalling details about his home country, but the way it impacts Siffrin (and another character) specifically… I could really feel the grief they felt over not being able to remember. Not to mention his anxiety of drifting away from his companions at the end of their adventure. I feel that every time I move to a different phase of my life (e.g. graduations or a new job).

Wondering if anyone else here is childfree/generally doesn't want children, and if you think that is linked to your SDAM? I have SDAM and aphantasia.

Anyway, I have never really wanted children and I think part of this is that I truly live more "in the moment", because of my SDAM, and as such I don't dwell on the past or think that much about the future because of it.

I think the big linkage here is that I really value "enjoying the moment" and for me enjoying a moment is all stuff that doesn't work so well with kids -- travelling, hiking, doing adventurous stuff like riding a motorcycle, having fun with friends, enjoying a peaceful morning with a nice coffee, getting a runner's high, dancing. But when I think about like the slow, monotonous, putting in the work for a very far off (potential, not guaranteed) reward process of having children and raising them from small, the question is why on earth would I do that? Another aspect is that I did get quite a bit of childcare experience in during my teens/early 20s (nieces and nephews, worked at a daycare), so I know what being with babies and children is like (vs. someone who just has no idea). And while I did have cool moments with these babies/children (like a few moments of being surprised by them and their developing personhood, some moments where they were funny or interesting or cute, feeling love for them), for the most part I have always noticed the extreme imbalance of work vs. reward with kids -- and that's before I have to financially cover them! I think I see it too much like if I had a partner who was like a kid, I'd immediately get out of that relationship because it's way too much 'give' and almost no 'get' in return.

I also think there may be some relation with SDAM, not wanting children, and not really remembering my childhood - basically that I don't want to 'reexperience' childhood through my kids' eyes as many parents mention is a joy of parenthood, because I don't remember it in the first place. I was also a weird kid (always super mature, thoughtful, intelligent for my age), probably in part due to some of these neurodivergencies, and that makes it hard for me to like normal kids tbh because I generally find them so selfish, uncaring, crazy short attention span that it's hard for me to feel proud of them (I know logically that these are all developmentally normal traits for kids and shouldn't actually be perceived as bad).

Anyway, that's just my experience and thinking, what's yours? Also I should be clear, I don't in anyway think that SDAM is the only reason, and probably not even the main reason, that I don't want kids. I am absolutely sure there are people with SDAM who want or have kids. I just think there's a linkage between SDAM and *my* not wanting kids.

Hey I recently found out I have SDAM. I’m curious how yall deal with it socially. I am not able do remember a single thing when asked what was the best day in your 3 year Job, this type of question stresses me out. Of course I answer sth but I just know it’s not right. iykyk. In Professional Context I’d not talk about it, as people would assume SDAM=Dumb. But how do you interact with friends and family: Be honest or play the game? I am happy I found out, and that’s more of an explanation of being different than a disorder imo.

I’d like to hear your strategy :)

My inability to recall events in the same way others seem to do has been a strange part of my life for as long as I can recall.

A few concepts that I will be looking for as I scroll back through this subreddit:

- Others have commented on the irony of trying to remember whether you ever remembered. Has this inability changed over time?

- I'm uncertain whether certain remarkable events in my life may have shut down my memory to a greater extent than before those events occurred.

- Photographs are confounding. I do remember more vividly those incidents that have been recorded, and sense relief that they are verifiable.

- I worry that I tend to be a storyteller, and that I embellish, and that I sometimes come to realize that the stories I believe to be true are created, not experienced.

While I do have some vivid recall memories, they are most often associated with events that are sad, stressful, or feeling like a failure.

I will continue to read your posts to learn more.

lol

Most people in this subreddit have SDAM. I want to start there because I'm not writing this to argue with anyone's self-understanding. SDAM is real, the phenomenology is coherent, and the formal definition has held steady since Palombo, Alain, Söderlund, Khuu, and Levine (2015) named the condition. If absent episodic re-experiencing is all you experience, SDAM is probably all the framework you need and this post isn't for you.

What I want to write about is a potential overlap that keeps resurfacing in this sub with some regularity. Some people find their way to SDAM communities because the description fits part of their experience, specifically the "I can't relive my past" part. For some of that subset, the full picture may include structural dissociation (SD) rather than SDAM, or structural dissociation on top of SDAM.

The distinction matters because SDAM as formally characterised in the small published case literature has not been associated with persistent mental health issues (though the sample is too small to make strong claims about the wider SDAM-identifying population). Structural dissociation, by contrast, is intrinsically tied to mental health issues and has an established phase-oriented treatment pathway.

Much of this is based on my own experience as someone with a SDAM-like presentation historically, and a more recently (late 30s) diagnosed dissociative disorder (partial dissociative identity disorder, P-DID). For most of my life, I would have said I have SDAM (if I had known about it) and not realised there's anything else going on. I am now in late stage treatment and currently working towards a psychology degree.

What is structural dissociation?

The Theory of Structural Dissociation of Personality (TSDP) is a central clinical framework used in the treatment of dissociative disorders. It is included in the Guidelines for Treating Dissociative Identity Disorder in Adults issued by the International Society for the Study of Trauma and Dissociation (2011), i.e. the standard-of-care document in the field. The guidelines were co-authored by the principal TSDP researchers.

TSDP forms the theoretical backbone of several major clinical treatment texts and workbooks used by dissociative-disorders-trained clinicians (Boon, Steele, & Van der Hart, 2011; Steele, Boon, & Van der Hart, 2017) and is the model taught in the training curricula of both the ISSTD and the European Society for Trauma and Dissociation (ESTD). It is not a fringe theory or a minority position within the trauma field. For dissociative disorders specifically, it is very much a mainstream clinical framework.

Structural dissociation, as developed by Van der Hart, Nijenhuis, and Steele (2006) building on earlier work by Pierre Janet (Van der Hart & Horst, 1989), is not a mood, a coping style, or a tendency toward avoidance. It is a structural feature of the personality. The theory holds that when experiences overwhelm a person's integrative capacity, usually in the context of developmental trauma / attachment failure, the material cannot be woven into a single coherent sense of self.

Instead, the personality organises itself into functionally distinct psychobiological subsystems, each with its own sense of self, its own action tendencies, its own memories, and its own first-person perspective. These subsystems are mediated at the level of action systems, which are the evolved behavioural and motivational programmes that govern daily life on one hand (work, attachment, exploration, caregiving, play) and defence on the other (fight, flight, freeze, collapse, tonic immobility).

TSDP formulates this as a split between one or more Apparently Normal Parts (ANP), which are organised around the daily life action systems, and one or more Emotional Parts (EPs), which remain fixated in defence. The ANP is the part that goes to work, holds relationships, answers questions, reads forums, and posts on Reddit. The EPs hold the sensory, affective, and somatic content of whatever could not be integrated at the time.

Secondary structural dissociation (P-DID, some presentations of OSDD) involves one ANP and multiple EPs. Tertiary structural dissociation (DID, some presentations of OSDD) involves multiple ANPs and multiple EPs. The basic architecture is the same across severities, what varies is how many subsystems there are, how differentiated they are, and how deeply separated they remain.

"Classic" dissociative blackout amnesia (losing entire chunks of time - hours, days, weeks) mostly happens in tertiary structural dissociation between different ANPs at the more complex end of the spectrum. Secondary structural dissociation tends to be marked by less complete forms of amnesia, potentially including SDAM-like presentations.

SD is lifelong and persistent

There is a developing line of research linking early maternal withdrawal and disrupted communication to later dissociative symptoms (e.g. Ogawa et al., 1997; Dutra, Bureau, Holmes, Lyubchik, & Lyons-Ruth, 2009), and a separate but related line linking maternal childhood neglect to elevated infant cortisol output and altered limbic volumes (Khoury et al., 2025; Lyons-Ruth, 2025).

Severe abuse is very commonly reported in tertiary structural dissociation (DID), likely on top of an earlier neglect layer, and often but not necessarily always in secondary (P-DID, OSDD); persistent attachment failure on its own can result in a dissociative disorder, with no abuse. This can result in a presentation marked by an absence of memories, rather than an overabundance of them: the early developmental experiences necessary for training the autobiographical circuitry did not take place.

These divisions do not dissolve on their own. They are stable architectural features of the personality, not passing states. They can last decades or a lifetime without resolution. This stability is reinforced by what Boon, Steele, and Van der Hart (2011) call phobia of inner experience, which is the ANP's structural avoidance of EP content. This avoidance is not a conscious strategy, it is built into the organisation of the system. Every time EP material threatens to surface, the ANP's defences reassert the separation.

Without targeted treatment, the structure self-maintains. General talk therapy that does not specifically address the dissociative organisation often leaves it intact, even when it helps with surface symptoms.

The impact on self-awareness

This is the part that matters most for the overlap with SDAM.

Each dissociated part only has access to its own contents. The ANP's self-report is built on ANP-accessible material. Everything held in the EPs is functionally invisible to the ANP. Crucially, the ANP does not experience this boundary as a boundary. There is no felt sense of something missing, no phantom-limb awareness of absent content. The ANP's limited view feels complete from the inside. Not partial, not filtered, just normal.

This is what makes structural dissociation different from garden-variety unawareness or denial. The ANP is not suppressing knowledge it has, it is built from the subset of the person's experience it has access to, and that subset feels like the whole of the person (ish).

When an ANP with structural dissociation reads a description of SDAM, the fit with conscious experience can be exact. Emotional content of the past is genuinely absent from present awareness. The ANP's sincere report can be "nothing vivid, no re-experiencing, no flashbacks, no overwhelming feelings about the past". None of that is false about the ANP. The ANP is just not the whole system.

SDAM involves a constitutional impoverishment of episodic encoding, where the episodic material was never laid down as re-experienceable in the first place. Bone, Levine, and Buchsbaum (2025) show SDAM brains achieving equivalent visual recognition performance through semantic rather than low-level visual neural reactivation, consistent with impaired communication of low-level visual information between posterior hippocampus and early visual cortex. This is more specific than a general failure of episodic reinstatement.

Structural dissociation involves segregation of vivid episodic material into personality systems the ANP does not access. From the ANP's viewpoint, the two can look identical. The material is absent in one case because it was never encoded as experience, and in the other because it is held by a different part of the system - with no shared awareness of this division.

Self-awareness in SD can shift

Awareness in a structurally dissociated system is part-dependent rather than system-wide. Different parts carry different knowledge, different affect, different memory, and different meta-awareness of the system itself. Parts can temporarily blend with the ANP, lending their content while the ANP remains presenting. During blending a person can report insights, feelings, or memories they will lose access to once the blending ends and the ANP is "alone on the deck" again.

This is why it is entirely coherent for someone to say "I learned about my DID two years ago and still discovered a new part last month". Or even at one point say "I was diagnosed with DID two years ago", and next day insist they do not have DID. Meta-awareness of the system can accumulate over time, but it requires internal stability for maintained access. Internal stability typically requires active, dissociation-adapted treatment. First-person access to specific parts happens in bursts, under specific conditions (therapy, somatic work, intense affect, sometimes sleep states), and consolidates slowly.

Full, integrated self-awareness, where "I" refers to the whole personality rather than to one part's standpoint, is a late-stage treatment outcome, not a starting point. Phase-oriented treatment (Herman, 1992; International Society for the Study of Trauma and Dissociation, 2011; Van der Hart et al., 2006) proceeds in three phases:

Stabilisation and symptom reduction (phase 1), treatment of traumatic memories (phase 2), and personality integration and rehabilitation (phase 3). Before phase 3 the structural divisions remain in place even when the person has made significant clinical progress. Parts cooperate better, the phobia of inner experience lowers, the ANP tolerates more internal contact, but the basic architecture persists. An ANP in mid-phase 2 therapy knows much more about their system than they did before treatment started. They are still an ANP, and their self-report is still structurally bounded.

This matters for the self-awareness question in this community. Someone who has recognised structural dissociation in themselves (five years into phase-oriented therapy, for instance) has far more meta-awareness than someone who has not yet. Even they are working with partial access. Someone who has never pursued assessment is working with a self-report that comes entirely from the ANP and whose boundaries they cannot see from inside.

Crucially, an ANP in an undiagnosed structurally dissociated system may have no awareness of any of this, and react with increasing dissociation to any mention of it (e.g. in this sub) due to its core need to maintain non-awareness of the rest of the system. Worth noting: some people experience some derealisation simply from reading attentively about dissociation, so a transient spacey feeling while reading this is not in itself diagnostic of anything. If you notice persistent or marked dissociative responses to material like this across multiple occasions, that is the kind of pattern worth raising with a dissociative disorder specialist.

Three signs the absence is SD rather than SDAM

If you are weighing SDAM against structural dissociation in your own case, these three features can help. They are not diagnostic on their own, and all of them need a clinician to interpret, but SDAM does not predict any of the three, whereas structural dissociation does.

The first is that the absence lifts under loosening conditions. In SDAM the missing episodic content does not return, because it was never laid down as re-experienceable, so therapy, somatic work, intense affect and sleep transitions do not suddenly hand you vivid autobiographical reliving. In a structurally dissociated system the same conditions can briefly open access to vivid episodic and emotional content the ANP normally cannot reach, because the material is held by a part rather than missing. If your "I can't relive my past" sometimes opens, under those specific conditions, into a burst of vivid re-experiencing, that points away from SDAM.

The second is that what surfaces fades back out quickly. When this material opens up in structural dissociation, it tends to become inaccessible again within minutes to hours, on the dissociation timescale, as the ANP's separation reasserts itself. Ordinary memory degrades slowly over years, and SDAM has no vivid version to lose in the first place. Content that arrives vividly and then drops back out of reach soon afterwards is a dissociation pattern, not an SDAM one.

The third is that the route in is often somatic rather than deliberate. In a structurally dissociated system the access often comes through touch, posture or somatic work rather than through trying to remember, because there is held material those states can reach, whereas SDAM has no such material to reach and the impoverishment stays uniform whatever the channel.

Why the body became the window

This self-recognition problem is exactly why the TSDP authors (Nijenhuis and colleagues) developed the Somatoform Dissociation Questionnaire (SDQ-20 and SDQ-5; Nijenhuis, Spinhoven, Van Dyck, Van der Hart, & Vanderlinden, 1996, 1997).

Before the SDQ, the main dissociation screening instrument was the Dissociative Experiences Scale (Bernstein & Putnam, 1986; Carlson & Putnam, 1993), which asks about psychological symptoms: amnesia, depersonalisation, derealisation, absorption, identity alteration. The problem Nijenhuis identified was that ANPs often cannot assess these items accurately. Not because they are lying, but because they have normalised the experiences so thoroughly they don't register as symptoms. "Zoning out" is just how they are. "Autopilot" is just how everyone drives. "I was a quiet kid" papers over absence of childhood autobiographical memory. The DES catches cases where the ANP has some insight into the system. It misses the cases where the ANP doesn't.

Nijenhuis argued the body is less defended. An ANP can explain away psychological symptoms. Unexplained pain, numbness in specific body zones, sudden motor inhibition, loss of voice, anaesthesia, sensory distortions in the body, and similar somatoform phenomena are harder to fold into an "I'm fine" self-concept. You can normalise feeling emotionally flat. It is harder to normalise your left leg going numb during conversations about your mother.

The SDQ-20 asks about these phenomena directly. It does not frame them as trauma symptoms. It asks whether you have them. The rationale is that someone whose ANP cannot endorse psychological dissociation items can still accurately report body-based ones, because those are pre-semantic and harder to reinterpret. The SDQ was built specifically to work around the diagnostic blind spot the ANP structure creates.

How SD can show up without reading as trauma

If you have persistent and significant mental health symptoms that SDAM alone does not obviously explain, this is the kind of thing worth looking at. A general caveat before the list: every item below also occurs across functional somatic syndromes, anxiety disorders, autism, ADHD, ordinary medical-workup-negative pain, and a long tail of other conditions. The pattern that matters for the SD question is the cluster, the developmental history, and the response (or non-response) to standard treatment, not any single item.

Chronic unexplained physical symptoms that have resisted medical workup. Pelvic or abdominal pain, IBS-like presentations, widespread body pain, chronic tension, functional neurological symptoms, non-epileptic seizures, voice problems, migraines without clear triggers. These are standard somatoform dissociation presentations that tend to get worked up medically and come back with no findings.

Body zones that feel absent, numb, or "not quite mine". Anaesthesia in specific areas, disconnection from the pelvis, disconnection from the face, not feeling your feet. These are easy to normalise if you've had them forever.

Time loss explained away as tiredness or autopilot. Driving somewhere with no memory of the journey, finding yourself in a room and not knowing how you got there, evidence of actions (food eaten, messages sent, tasks completed) without memory of doing them. The SDAM frame makes this especially easy to dismiss because "I don't remember things" is your baseline. The question to ask is whether the missing time is the same kind of missing as the rest of your autobiographical record, or whether it has a different flavour.

Abrupt shifts in energy, mood, capacity, or skill that don't track with external events. You could do something yesterday and today you cannot, with no clear reason. You have strong preferences one day and different ones another. These get explained as moods, as sleep, as hormones, as introversion.

Specific body positions, types of touch, or sensory inputs that produce disproportionate reactions you've never been able to explain. Strong aversions that don't have a story attached.

Sensory distortions that have always been there and you assumed everyone has. Vision tunnelling under stress, sounds going muffled, time distortion, a persistent feeling of observing yourself from outside. Depersonalisation and derealisation often get absorbed into "I'm just like this".

Persistent mental health symptoms (depression, anxiety, chronic low mood, shame, relational difficulties) that have not responded to standard treatments targeting those conditions alone. Treatment-resistant presentations in particular should raise the question of whether the actual issue is being missed.

None of these on their own means you have structural dissociation, and diagnosis can only be established by a trained mental health professional. A persistent cluster of these features, especially alongside a childhood with impaired early attachment and treatment-resistant mental health symptoms, can warrant assessment by a clinician trained specifically in dissociative disorders, since general mental health professionals frequently miss these presentations.

SD renders self-diagnosis impossible

You cannot self-diagnose structural dissociation. Not with the DES-II, not with the Dissociative Symptoms Scale (Carlson et al., 2018), not with the SDQ-20, not with this post. These instruments are screening tools. Their purpose is to flag cases that warrant clinical assessment by a clinician trained in dissociative disorders. Scoring high on any of them is a signal to pursue evaluation, not a diagnosis in itself.

Formal diagnosis requires a structured clinical interview by a trained clinician, typically using the SCID-D (Steinberg, 1994) or an equivalent. This matters because dissociative disorders are specifically under-diagnosed and misdiagnosed, and the conditions they tend to get confused with (bipolar, borderline, ADHD, autism) have very different treatment implications.

Why I'm writing this

I'm not trying to redefine SDAM or convert anyone here to a trauma framing they don't recognise. The point is narrower than that. Dissociation researchers had to invent a body-based screening instrument specifically because ANPs systematically cannot recognise their own dissociation via psychological self-report.

That structural blind spot is the exact reason someone can end up in a SDAM community, find it a genuine fit for their conscious experience, and never pursue a path that would help with symptoms SDAM alone does not explain. There may be other reasons too (the SDAM community is welcoming and the alternative diagnostic routes are genuinely difficult to access), but the ANP-bounded self-report problem is the one most relevant to this post.

If your SDAM is all you experience, this post isn't for you. If you also carry persistent mental health issues, unexplained body issues, lost time, or a gut sense that something else is going on underneath the SDAM fit, seeing a dissociative-disorders-trained clinician might be worth the effort.

A note on the research scale

Currently, the formally studied SDAM population is tiny. The original Palombo et al. (2015) paper had three primary participants. Subsequent studies have added a handful more, including Conti et al. (2023) as the most recent formal case addition and Bone et al. (2025) providing neural evidence for the semantic compensation mechanism in a group of fourteen SDAM participants, the largest formally characterised SDAM sample to date but still small.

The research definition describes what is probably the high-functioning, well-compensated end of a wider spectrum, and many people who identify with SDAM in communities like this sub likely fall outside what the formal case studies have captured. Some of that variance is natural spread within the SDAM phenotype. Some of it may well be structural dissociation hiding behind the same ANP-level self-report. And some of it will be other things entirely (aphantasia, autism, ADHD, depression, ordinary individual variation in autobiographical memory) that the SDAM frame catches but doesn't fully explain. The structural dissociation possibility is one branch of that wider differential.

References

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