Mothers' actions are more enthusiastic, simple, and repetitive when demonstrating novel object properties to their infants than to adults, a behavioral modification called "infant-directed action" by Brand and colleagues (2002). The current study tested whether fathers also tailor their behavior when interacting with infants and whether this…

Describes two experiments that examined whether the amplitude of the human eyeblink by a mild tap between the eyebrows can be increased if a brief tone is presented simultaneously with the tap and how these effects change from newborn infants to adults. (HOD)