Developmental Trajectories in Primary Schoolchildren Using n-Back Task
Results: We observed improvements related to age in n-back outcomes d′, HRT and accuracy, as well as reduced cognitive growth at older ages in d′ and HRT. Greater improvements in performance were observed at younger ages, in 2-back, in verbal rather than numerical stimuli and in girls compared to boys. Boys responded faster at baseline, while girls showed increased growth in 2-back numbers. Children with ADHD (Attention Deficit and Hyperactivity Disorder) symptoms (15% of boys and 6% of girls) had a lower working memory at baseline, but they showed similar cognitive growth trajectories in numbers variants of the task, as compared to children without ADHD symptoms. However, the age-related improvement in response speed was not observed in children with ADHD symptoms.
Conclusions: Changes in n-back outcomes reflected developmental trajectories in 1-year follow-up. The present results suggest that the repeated administration of this task can be used to study the factors that may alter the cognitive development during childhood.
Lopez-Vicente, M., Forns Guzman, J., Suades-Gonzalez, E., Esnaola, M., Garcia-Esteban, R., Alvarez-Pedrerol, M., ... Sunyer, J. (2016). Developmental Trajectories in Primary Schoolchildren Using n-Back Task. Frontiers in Psychology, 7, e716. DOI: 10.3389/fpsyg.2016.00716