“…Using the non-nutritive sucking procedure, neonates will suck preferentially to hear their mother's voice over an unfamiliar female voice (e.g., DeCasper & Fifer, 1980;Mehler, Bertoncini, Barri ere, & Jassik-Gerschenfeld, 1978;Mills & Melhuish, 1974). Newborns and young infants do not show preferences for their father's voice over an unfamiliar male voice, but they can distinguish between the two (e.g., DeCasper & Prescott, 1984;Ward & Cooper, 1999). Furthermore, investigations into the neurophysiological mechanisms underlying the maternal voice preference have shown that the infant brain responds differently to familiar and unfamiliar voices (e.g., Beauchemin et al, 2011;Purhonen, Kilpel€ ainen-Lees, Valkonen-Korhonen, Karhu, & Lehtonen, 2004).…”