TY  - JOUR
PY  - 2007//
TI  - Event-related variations in alpha band activity during an attentional task in preadolescents: Effects of morning nutrition
JO  - Clinical neurophysiology
A1  - Pivik, R. T.
A1  - Dykman, R. A.
SP  - 615
EP  - 632
VL  - 118
IS  - 3
N2  - OBJECTIVE: Event-related desynchronization and synchronization (ERD/ERS) methodology was used to study interactions between nutrition, brain function, cognition and behavior in children who ate or skipped breakfast after overnight fasting. METHODS: Healthy preadolescents performed a cued visual Go/No-Go RT task after overnight fasting (Phase 1) and again (Phase 2) after eating breakfast (n=30) or continuing to fast (n=30). ERS and ERD determinations (8-10, 10-12Hz; frontal, central, parietal, occipital sites) and measures of sleep (overnight actigraphy) and blood glucose (finger sticks) were obtained. RESULTS: Feeding increased blood glucose, but the groups were similar in sleep amount and response accuracy. Between-phase comparisons showed slower RT and increased alpha synchronization in fasting subjects, but little change in those who ate breakfast. Phase 2 group differences emphasized greater frontal early ERS and late frontal-central ERD in Fed subjects. CONCLUSIONS: In preadolescents a brief extension of overnight fasting resulted in significant changes in brain activity and behavior that were effectively countered by eating breakfast. Delaying breakfast until mid-morning appeared to have introduced fasting effects that attenuated responses in Fed subjects. SIGNIFICANCE: These findings show the sensitivity of brain function and behavior to subtle variations in nutritional status and argue for greater consideration of nutritional variables in neurobehavioral studies.<p /> <p>Language: en</p>
LA  - en
SN  - 1388-2457
UR  - http://dx.doi.org/10.1016/j.clinph.2006.11.003
ID  - ref1
ER  -