Subtypes of Emotional and Behavioural Sequelae in Patients With Traumatic Brain Injury
Bibliographic record
Abstract
This study examined patterns of emotional and behavioural sequelae in 300 individuals who sustained a traumatic brain injury (TBI). Participants were obtained through the Adult Acquired Brain Injury Program at Chedoke Hospital in Hamilton, Ontario, based on the following inclusionary criteria: (1) single incident of TBI; (2) no history of additional neurological diseases; (3) time postinjury < or =8.5 years; (4) WAIS-R FSIQ >85 and/or estimated reading skills above grade 5 level; and (5) valid Minnesota Multiphasic Personality Inventory (MMPI) profiles (i.e., F<90, L<66, and K<66). MMPI profiles of these individuals, in randomly split samples of 150 per group, were subjected to a three-step cluster analytic approach. A six-cluster solution was adequately replicated across samples and across clustering techniques. The identified subtypes included profiles indicative of: (1) no concerns or normal functioning; (2) mild somatic and pain concerns; (3) mild internalizing difficulties; (4) marked disinhibition and externalizing behavioural difficulties; (5) marked internalizing difficulties; and (6) marked somatic, internalizing, and externalizing behavioural disturbances. Members of the Externalized subtype were significantly younger in age than those in the other five subtypes, and more likely to be single than those in the Internalized subtype. Individuals in the Internalized subtype tended to be married, have longer times postaccident, and lower WAIS-R Verbal Intelligence Quotients than those comprising the Normal subtype.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".