Little is known about specific attentional sequelae following a closed head
injury, their pattern of recovery or their interaction with ongoing develo
pment. The present study examined attentional abilities in a group of child
ren who had sustained a mild, moderate, or severe head injury. Results show
ed that the severe head injury group exhibited greater deficits on a number
of attentional measures at acute and 6 months postinjury phases, in compar
ison to children in the mild and moderate head injury groups. Specifically,
deficits were most evident on timed tasks where speed of processing was an
integral component. Difficulties persisted to at least 6 months postinjury
and so may lead to cumulative deficits over time.