Selective changes in executive functioning ten years after severe childhood traumatic brain injury

Area of Science:

• Neuroscience
• Pediatric Neurology
• Developmental Psychology

Background:

• Pediatric traumatic brain injury (TBI) can affect executive functions.
• Long-term developmental trajectories of these deficits are not well understood.

Purpose of the Study:

• To investigate the long-term evolution of executive function deficits in adolescents after pediatric TBI.
• To compare executive function performance between adolescents with TBI and typically developing peers ten years post-injury.

Main Methods:

• Forty adolescents with a history of TBI were assessed.
• Nineteen typically developing adolescents served as controls.
• A range of executive function measures were administered, including attentional control, cognitive flexibility, goal setting, and information processing speed.

Main Results:

• Adolescents with mild or moderate TBI performed within age expectations on all executive function tests.
• Adolescents with severe TBI demonstrated poorer performance on goal setting and processing speed tasks compared to controls.
• No significant differences were observed in attentional control or cognitive flexibility between groups.

Conclusions:

• Childhood TBI, particularly severe injuries, can lead to subtle, persistent executive function changes.
• These lasting deficits may impact complex executive skills, necessitating ongoing support into adulthood.