COGNITIVE NEUROSCIENCE AND NEUROPSYCHOLOGYBrain dynamics in young infants’ recognition of faces EEG oscillatory activity in response to mother and strangerMash, Claya; Bornstein, Marc H.a; Arterberry, Martha E.bAuthor Information aSection on Child and Family Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Maryland bDepartment of Psychology, Colby College, Waterville, Maine, USA Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's website (www.neuroreport.com). Correspondence to Clay Mash, PhD, Section on Child and Family Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6705 Rockledge Drive, Ste. 8030, Bethesda, Maryland 20892, USA Tel: +1 301 496 6866; fax: +1 301 496 2766; e-mail: [email protected] Received January 14, 2013 Accepted January 23, 2013 NeuroReport: May 8, 2013 - Volume 24 - Issue 7 - p 359-363 doi: 10.1097/WNR.0b013e32835f6828 Buy SDC Metrics Abstract The brain electrical responses of 3-month-old infants were compared between images of familiar and unfamiliar faces. Infants were shown images of their mothers and of appearance-matched female strangers for 500 ms per trial while their electroencephalography was recorded. Electroencephalographic signals were segmented from stimulus onset through 1200 ms, and segments were analyzed in the time–frequency domain with a continuous wavelet transform. Differentiated responses were apparent in three time windows: 370–480, 610–690, and 830–960 ms. Across response windows, event-related synchronization or desynchronization was observed in beta or gamma frequency bands at the left frontal, midline central, bilateral temporal, and right parietal sites. In conclusion, these findings provide the first evidence of organized brain activity underlying familiar face recognition in very young infants and are discussed in relation to comparable patterns that have been observed in adults. © 2013 Lippincott Williams & Wilkins, Inc.