Psychological changes are seen in many patients following head injury. These may be noticed by the patient or by their friends and family. Examples include depression of intellect, memory, libido and concentration, increased irritability, and loss of interest.
Some sequelae are treatable. For example, increased irritability and aggression may respond to carbamazepine, L-dopa, or methyl phenidate - a dopamine agonist.
'Reward' schemes may be useful in correcting socially unacceptable behaviours or in increasing 'drive'. Impairment of cognitive function may be improved by specific strategies such as keeping a diary or writing out shopping lists.
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