Studied the communication of affect through spontaneous facial expressions with 10 pairs of female undergraduates and 9 pairs of males. Sender Ss watched 25 slides designed to elicit affect while Os watched the sender's face over television and made judgments about the nature and intensity of the affect. Skin conductance and heart rate were recorded from both sender and O. Results reveal significant communication of affect, particularly among the female pairs. Relationships between the communication process, personality measures, and physiological responding were explored, and a negative relationship was found between the sender's skin conductance responding and communication accuracy. (32 ref.) (PsycINFO Database Record (c) 2016 APA, all rights reserved)