Key result
Frontal EEG alpha power and heart rate show acceptable 1-month test-retest reliability in adolescents.
Why the study?
Do frontal EEG and ECG measures demonstrate acceptable test-retest reliability in adolescents over a 1-month period?
Observational (n=10)
Do frontal EEG and ECG measures demonstrate acceptable test-retest reliability in adolescents over a 1-month period?
Frontal EEG and ECG measures show acceptable test-retest reliability over a 1-month period in adolescents, supporting their use as indices of affective style.
Supports short-term stability for adolescent affective research; leaves open validation in clinical populations or extended intervals.
A number of studies have shown that the pattern of resting frontal EEG alpha power and asymmetry and heart rate are predictive of individual differences in affective style in children and adults. Although test-retest reliability of frontal electrocortical and autonomic measures has been established in adult and child and some clinical populations, few studies have examined test-retest reliability of these measures in adolescents. Here, we conducted a pilot study to examine the test-retest reliability of frontal EEG alpha power and asymmetry and heart period and heart rate in 10 typically developing adolescent participants (M age = 15.9 years) over a 1 month period. We found acceptable test-retest reliability using Pearson and intra-class correlations in left and right mid-frontal alpha power and asymmetry and heart period and heart rate over 1 month. These results provide initial evidence for acceptable levels of test-retest reliability in central and peripheral psychophysiological measures in adolescents used to index affective style in children and adults. Future studies are needed with a larger sample to ensure the reliability of these results.
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Winegust et al. (2014) conducted an observational in Typically developing adolescents (n=10). Frontal EEG and ECG measures was evaluated on Test-retest reliability of frontal EEG alpha power and asymmetry and heart period and heart rate. Frontal EEG alpha power and asymmetry, as well as heart period and heart rate, demonstrated acceptable test-retest reliability over a 1-month period in typically developing adolescents.
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