Reflection training improves executive function in preschool-age children: behavioral and neural effects.

Area of Science:

• Cognitive Psychology
• Developmental Neuroscience
• Educational Psychology

Background:

• Executive function (EF) is crucial for cognitive control.
• Preschoolers often struggle with tasks requiring rule switching, like the Dimensional Change Card Sort (DCCS).
• The role of reflection in improving EF is not fully understood.

Purpose of the Study:

• To investigate if reflection training can enhance executive function in preschoolers.
• To determine if reflection training improves performance on the DCCS task.
• To explore the neural correlates of performance improvements.

Main Methods:

• Preschoolers who failed a pre-training DCCS task received reflection training involving corrective feedback and explicit instruction on rule conflict.
• Three experiments varied the training protocol, including a shortened version and comparisons to feedback-only or practice-only conditions.
• Electroencephalography (EEG) was used in one experiment to measure brain activity (N2 component) before and after training.

Main Results:

• Children receiving reflection training showed significant improvements on the DCCS task across all experiments.
• Control groups (feedback-only or practice-only) did not show similar performance gains.
• Reflection training led to a reduction in the N2 amplitude, indicating decreased conflict detection.

Conclusions:

• Brief reflection training is an effective method for improving executive function in young children.
• Performance gains are associated with neural changes, specifically down-regulation of conflict detection mechanisms.
• These findings have implications for educational strategies aimed at enhancing cognitive skills.