Cognitive fatigue is a common problem that can happen after a head injury. When a child has cognitive fatigue, it means the brain has to work harder to concentrate on tasks it used to be able to do easily, for example watching TV, playing computer games, or having a long conversation. Cognitive fatigue is not related to a child’s intellectual capacity or physical energy levels. It can lead to behavioral problems, mood swings and educational difficulties.
Your child may experience some or all of the following symptoms of cognitive fatigue:
- Slowness when thinking, understanding and responding to questions or commands
- Problems concentrating
- Difficulties with memory
- Difficulty thinking of the right words to say
- Being more demanding than usual; easily frustrated
- Increased fear and anxiety
- Changed sleep patterns
- Mood swings and irritability
- If your child’s cognitive performance or behavior is very different from normal, or it is getting worse, take them back to the hospital
Children experiencing cognitive fatigue should have complete rest—for both their brain and body. This means no watching TV or playing on mobile electronic devices. Allow your child to gradually return to reading and other activities that require periods of greater concentration or thinking.