Abstract #4515

Does Pre-task Resting state Absolute Alpha (PRAA) power and its Frontal Asymmetry Index (FAI) predict outcome of Situational Awareness task? Assessment through EEG informed fMRI approach.

Ardaman Kaur¹, Vijayakumar C¹, Swati Agrawal¹, Subash Khushu¹, Rishu Chaujar², and Suresh Sharma²

¹Nuclear Magnetic Resonance Research Center, Institute of Nuclear Medicine & Allied Sciences, Defence Research and Development Organisation, Delhi, India, ²Applied Physics, Delhi Technological University, Delhi, India

One of the established hypotheses is that alpha-oscillation inhibits irrelevant stimulus processing during task, but correlates positively with emotional stability of individual in absence of predefined task. However, role of Pre-task Resting state Absolute Alpha rhythm (PRAA) and its frontal hemispheric difference estimated by Frontal Asymmetry Index (FAI) in predicting the outcome of individual’s performance in higher-order cognitive task is poorly understood. Thus, in this study, correlation of PRAA and FAI with behavioral parameter pertaining to Situational Awareness (SA) task was studied. Further, to substantiate the emotional connectivity of PRAA and FAI index, their neural correlates in task-fMRI were estimated.

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