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Differences between coherence and phase locking value during the Stroop task in athletes
1Lokman Hekim University, Faculty of Sports Sciences, Ankara, Turkey.
Abstract:
This study investigates the differences between coherence and phase-locking value (PLV) in analyzing EEG data from 20 athletes performing a Stroop task. Participants viewed 100 stimuli (50 congruent and 50 incongruent), and EEG data were recorded. A two-way ANOVA was used to assess the differences between coherence and PLV, while the intra-class correlation coefficient (ICC) evaluated their reliability. Statistical significance was set at p < 0.05. Results revealed that coherence values were significantly higher in the beta bands compared to PLV, while coherence values in the theta and alpha bands were lower. ICC analysis indicated variability in the reliability of EEG connectivity measures across frequency bands. The findings highlight that coherence and PLV provide distinct information, leading to different outcomes based on the method used.
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