Performance Monitoring in Children Following Traumatic Brain Injury Compared to Typically Developing Children
Amy A Wilkinson1,2, Maureen Dennis3, Margot J Taylor1,2,4
1Department of Psychology, University of Toronto, Toronto, Ontario, Canada.
Insights
Children with traumatic brain injury (TBI) may have impaired performance monitoring, as they did not show the same error-related adjustments as typically developing children on a stop-signal task.
Area of Science:
- Neuroscience
- Developmental Psychology
- Pediatric Neurology
Background:
- Children with traumatic brain injury (TBI) often exhibit performance monitoring deficits.
- The underlying neural mechanisms of these deficits in pediatric TBI populations remain unclear.
Purpose of the Study:
- To investigate the mechanisms of performance monitoring deficits in children with TBI.
- To compare performance monitoring between children with TBI and typically developing controls using a stop-signal task.
Main Methods:
- Employed a stop-signal task to assess performance monitoring in 28 children with TBI and 28 typically developing controls.
- Matched participants by age and sex for robust comparison.
- Analyzed behavioral responses, specifically reaction times and error rates, across different trial types.
Main Results:
- Typically developing children demonstrated significant slowing after incorrect stop-signal trials, supporting the error monitoring hypothesis.
- Children with TBI did not exhibit differential performance adjustments based on trial type.
- No significant group differences in performance monitoring were observed, indicating potential differences in how TBI affects this cognitive function.
Conclusions:
- The findings suggest that children with TBI may process errors and adjust behavior differently compared to their typically developing peers.
- Performance monitoring deficits in pediatric TBI may stem from altered error detection or response adjustment mechanisms.
- Further research is needed to elucidate the specific neural underpinnings and implications of these altered monitoring processes in TBI.
Abstract:
Children with traumatic brain injury are reported to have deficits in performance monitoring, but the mechanisms underlying these deficits are not well understood. Four performance monitoring hypotheses were explored by comparing how 28 children with traumatic brain injury and 28 typically developing controls (matched by age and sex) performed on the stop-signal task. Control children slowed significantly more following incorrect than correct stop-signal trials, fitting the error monitoring hypothesis. In contrast, the traumatic brain injury group showed no performance monitoring difference with trial types, but significant group differences did not emerge, suggesting that children with traumatic brain injury may not perform the same way as controls.
