Doing even more research into DID that I did when I was self diagnosing with autism and adhd. Im out here reading scientific journals. Also im gonna liveblog it* (not really cos its all gonna be in this one post but kinda)
Mostly reading through british sources cos im british and I found the original study article from https://clinicds.org.uk/
Dissociative identity disorder: out of the shadows at last? - Volume 219 Issue 2
Aiding the diagnosis of dissociative identity disorder: pattern recognition study of brain biomarkers - Volume 215 Issue 3
"Other factors contributing to under- and misdiagnosing of DID are [...] the reluctance of individuals with DID to present their dissociative symptoms, often owing to feelings of shame"
Ough yeah I feel that
"DID has an estimated lifetime prevalence of around 1.5%, meaning that at least one million people in the UK will suffer from DID during their life. It is therefore highly clinically relevant to move DID out of the abyss to facilitate earlier accurate diagnosis"
1000%. My GP has been super understanding and, while he's admitted he doesn't know much about DID, he trusts me to know myself and that he believes me when I say I think I have it, and he says its something we should look into.
In DSM-5 a dissociative subtype for PTSD was included and the dissociative disorders were placed immediately after the trauma- and stress-related disorders, to suggest a close relationship between dissociative PTSD and DID.
"They found a negative correlation between hippocampal volumes and childhood traumatisation across the two disorders, thereby providing neuroanatomical evidence for the clinical observations that DID is related to (severe) childhood trauma. This finding is particularly important because neuroanatomical data are unlikely to be subject to cognitive manipulation."
"It found that individuals with DID differed from controls on all three measures and provided evidence that non-genetic, environmental factors affect multiple aspects of brain development in DID. Negative associations between abnormal brain morphology and early childhood traumatisation were found as well. Taken together, brain activation studies have validated the DSM-5 identity criterion of DID by showing the existence of two or more distinct personality states, each with their own distinct pattern of brain activation in response to autobiographical trauma-related information. Studies of brain structure in DID have shown that DID is not likely to be a neurodevelopmental disorder but that environmental factors, such as early childhood traumatisation, have an impact on brain morphology in DID"
Moving onto the next article
"Sceptics of DID assume that dissociative symptoms can easily be simulated by normal healthy individuals, which comprises the Fantasy Model of DID. 11 Several pioneering functional brain imaging studies from our group have shown that individuals with genuine DID can be distinguished from healthy controls simulating DID, 12–14 but critics could still argue that people can manipulate their brain activity. 15,16 As neuroanatomical data is unlikely to be subject to cognitive manipulation, in this study we investigate whether people with DID can be separated from healthy controls at the individual level on the basis of neuroanatomical biomarkers by employing a multivariate data-driven pattern recognition approach"
In the current study post-traumatic stress disorder (PTSD) comorbidity was debriefed using the SCID-D and it was found that out of the 32 DID individuals, 29 had comorbid PTSD and 3 had PTSD in remission.
Chat I think DID might be related to trauma I don't know
Using the imaging data, the classifier discriminated between the DID and healthy control groups with high sensitivity (71.88%) and specificity (73.81%), yielding an overall balanced accuracy of 72.84%, which was significantly higher than the accuracy expected by chance
oh my god guys gyrus room of swords
"This discrimination was based on neuroanatomical data in the largest sample of individuals with DID included in a brain imaging study to date."
god the studying of DID really has been shit hasnt it
"The current study also provides support for the develop- ment of pattern recognition methodologies as a clinically useful diagnostic tool in DID, thereby paving the way for future studies with a diagnostic aim in distinguishing between genuine DID and other psychopathologies. Applying pattern recognition methods to brain imaging data of people with DID offers a biomarker approach that can complement, aid and improve clinical decision making. This could reduce mis- diagnoses, treatment time, treatment costs and ultimately improve the patient’s quality of life."
This article is from 2019, I wonder if this has been implemented or not as a diagnostic tool
"This level of accuracy is comparable to what has been demonstrated for most psychiatric disorders, 10 including psychosis."
For people saying 72% isnt accurate enough as well
Our study has several strengths and limitations. First, although the findings show that a person with DID can be distinguished from healthy controls at an individual level with a high sensitivity and specificity, future studies are needed to unravel how individuals with DID differ from their most common misdiagnosed psychopathologies, such as borderline personality disorder and schizophrenia
Rip. Probably isnt used as a diagnostic tool now then, idk if any newer studies about it compared to borderline or schizophrenia have come out
Furthermore, we recommend that future studies include a PTSD group without dissociative symptoms to investigate how PTSD comorbidity affects the classification, both at the level of the clinical presentation and biology. However, it is important to note that there is negligible overlap between results from the only multivariate study in PTSD 54 and our results, indicat- ing that the multivariate patterns found in the current study are likely to be dissociation specific neuroanatomical biomarkers
ok im tired this is all youre getting out of me rn
