Choral Singing, Performance Perception, and Immune System Changes in Salivary Immunoglobulin A and Cortisol

The best multiple regression model for performance level of immunoglobulin A (p < .0015) included seven emotional, cognitive, and evaluative variables generally associated with choral singing, including levels of mood before and during singing, stress, relaxation, feeling "high," detachment/engagement, and specific satisfaction with the immediate performance.