Brain Injury Severity
A neuropsychological assessment provides information about a person cognitive, behavioural and emotional functioning. While many factors influence the severity of an acquired brain Injury, the severity of an injury can classified according to the duration that a person remains in Post Traumatic Amnesia (PTA). Neurodynamics, based in Melbourne, has further extended the traditional classification system to take into consideration recent changes for the criteria associated with concussion.
| PTA Duration | Traditional Classification | Proposed Classification |
| < 5 minutes | Very Mild | Very Mild |
| 5-60 minutes | Mild | Mild/ Concussion |
| 1-24 hours | Moderate | Mild / Concussion |
| 1-7 days | Severe | Moderate |
| 1-4 weeks | Very Severe | Severe |
| > 4 weeks | Extremely Severe | Very Severe |
| > 6 months | Chronic amnesia state |
End
