The severity of effects of brain injury can vary considerably from person to person and usually depend upon the extent of damage to the nerve connections in the central brain; in severe cases this can lead to coma or damage to particular parts of the brain affecting the use of limbs. Brain injury may also lead to speech and language impairment as well as changes in personality, behavioural problems and cognitive functioning, such as memory difficulties, planning and organisation.
Identifying the nature of the brain injury in less severe cases is not always straight forward and the injury will not always be obvious upon scans or imaging. In cases of mild to moderate traumatic brain injury neuropsychological assessment are usually required to identify the exact nature of the injury and what treatment or rehabilitation may be appropriate.
Where the brain injury is more severe this may result in a loss of mental capacity so that the injured person loses the ability to manage their own affairs. In such circumstances any personal injury compensation obtained on their behalf would have to be approved by a Judge and managed by the Court of Protection. In addition a financial report may also be required in order to consider the type of award that is most appropriate, usually a combination of periodical payments and compensation paid in a single lump sum.