R. G.  Garcia, Valenza, G., Tomaz, C. A., and Barbieri, R., ?Relationship between cardiac vagal activity and mood congruent memory bias in major depression?, Journal of Affective Disorders, vol. 190, pp. 19?25, 2016. 

G.  Valenza, Citi, L., Lanata, A., Scilingo, E. P., and Barbieri, R., ?Revealing Real-Time Emotional Responses: a Personalized Assessment based on Heartbeat Dynamics?, Nature Scientific Reports, vol. 4, no. 4998, pp. 1?13, 2014.