A Time for Emoting: When Affect-Sensitivity Is and Isn't Effective at Promoting Deep Learning. - Sidney K. D'Mello; Blair Lehman; Jeremiah Sullins; Rosaire Daigle; Rebekah Combs; Kimberly Vogt; Lydia Perkins; Arthur C. Graesser (Intelligent Tutoring Systems (1), 2010)