Abstract
An event-related potential (ERP) measures the brain response that is the direct result of a specific sensory, cognitive, or motor event. In this paper we apply time-frequency analysis to the ERPs to investigate the sub-cognitive processes of the Stroop test. EEG data from 50 healthy participants are collected while performing the Stroop test. The test comprised of congruent and incongruent trials. Response time, response accuracy, and peak amplitudes and latencies are compared between congruent and incongruent trials. It is found that participants took significantly longer time to respond to incongruent trials than the congruent trials. It is also observed that the peak amplitudes in multiple ERPs are significantly higher in the congruent trials than incongruent trials. The time-frequency results revealed that brain oscillations in both congruent and incongruent trials increased in the higher beta range (18–30 Hz). We conclude that brain responses to stimulus are strongly correlated with higher beta band (18–30 Hz).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.