Effects of Auditory Distraction on Face Memory.

Effects of auditory distraction by task-irrelevant background speech on the immediate serial recall of verbal material are well established. Less is known about the influence of background speech on memory for visual configural information. A recent study demonstrated that face learning is disrupted by joyful music relative to soothing violin music and quiet. This pattern is parallel to findings in the serial-recall paradigm showing that auditory distraction is primarily caused by auditory changes. Here we connect these two streams of research by testing whether face learning is impaired by irrelevant speech. Participants learned faces either in quiet or while ignoring auditory changing-state sequences (sentential speech) or steady-state sequences (word repetitions). Face recognition was impaired by irrelevant speech relative to quiet. Furthermore, changing-state speech disrupted performance more than steady-state speech. The results were replicated in a second study using reversed speech, suggesting that the disruptive potential of the background speech does not depend on its semantic content. These findings thus demonstrate robust effects of auditory distraction on face learning. Theoretical explanations and applied implications are discussed.