Facial Identity Memory Is Enhanced When Sender's Expression Is Congruent to Perceiver's Experienced Emotion.

The role of the social context in facial identity recognition and expression recall was investigated by manipulating the sender's emotional expression and the perceiver's experienced emotion during encoding. A mixed-design with one manipulated between-subjects factor (perceiver's experienced emotion) and two within-subjects factors (change in experienced emotion and sender's emotional expression) was used. Senders' positive and negative expressions were implicitly encoded while perceivers experienced their baseline emotion and then either a positive or a negative emotion. Facial identity recognition was then tested using senders' neutral expressions. Memory for senders previously seen expressing positive or negative emotion was facilitated if the perceiver initially encoded the expression while experiencing a positive or a negative emotion, respectively. Furthermore, perceivers were confident of their decisions. This research provides a more detailed understanding of the social context by exploring how the sender-perceiver interaction affects the memory for the sender.