Schematic model.

(a) Brain under SAR is characterized by enhanced functional connectivity and activity in gamma band, (Green colour) (b) Brain under sad music listening is characterized with enhanced coherence, and activity in the alpha band (yellow colour). (c) Potential neural mechanisms that boost up the coping ability in adverse circumstances are (1) enhancing functional connectivity of the brain, (2) enhancing local cortical integration (synchronization) of relevant areas, and (3) enhancing sustained attention (alertness) of the brain.