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- Title
Event-related alpha responses during response inhibition in children and young subjects.
- Authors
Yıldırım, Ebru; Aktürk, Tuba; Çahşoğlu, Pervin; Uzunlar, Samet Hakan; Yırıkoğullari, Harun; Ada, Figen Eroğlu; Atay, Enver; Güntekin, Bahar; Ceran, Ömer
- Abstract
Objective: Inhibition which is one of the components of the executive functions is a suppression of the responses and/or task-irrelevant cognitive processes. Previous studies reported that age-related neurodevelopmental changes occur in inhibition performance from childhood to adulthood and the changes in inhibition processes are related to changes in the alpha frequency band. To our knowledge, there is no study evaluated the day-night response inhibition in both young subjects and children. Based on this, we aimed to investigate the event-related alpha responses during day-night inhibition task in children and young subjects. Methods: Fifteen children (6.73+0.46) and twenty young subjects (21.95+2.58) were included in the study. EEG was recorded from 18 channels with BrainAmp MR Plus System (sampling rate: 500 Hz; band limits: O.Ol-25OHz) during Day-Night Stroop task. Power-spectrum and phase-locking analysis were performed for alpha (8-13 Hz) frequency band. Power-spectrum analysis was performed in three different time-windows [(0-200ms), (200-400ms), (400-600ms)]. Repeated measures of ANOVA was used for statistical analysis (p<0.05). Results: Group difference and time-windowXgroup interaction were statistically significant for alpha power (ANOVA; p<0.05). Whereas the increase of the alpha power (ERS/event-related synchronization) in 0-200 ms has similar for children and youngs, the decrease of the alpha power (ERD/event-related desynchronization) in 200-400 and 400-600 ms was less in children in comparison to young subjects (ANOVA; p=0.005). LocationXgroup interaction was significant for alpha phaselocking, the phase-locking of the young subjects had higher than children in frontal, central, and parietal locations (ANOVA; p=0.009). Conclusion: Young subjects had higher alpha ERDs in late time-windows than children and this result demonstrates that motor execution and inhibition processes in young subjects may be more developed in comparison to children. In addition, alpha phase-locking in association areas was higher in young subjects than children. This result shows that cognitive processing in young subjects may be more developed.
- Subjects
RESPONSE inhibition; NEURAL inhibition; EXECUTIVE function; AUTISTIC children; STATISTICS; ANALYSIS of variance
- Publication
Anatomy: International Journal of Experimental & Clinical Anatomy, 2020, Vol 14, pS113
- ISSN
1307-8798
- Publication type
Article