“…Young infants possess remarkable categorization skills, and they readily categorize objects, such as faces, animals, furniture, vehicles, tools, and plants (e.g., Behl-Chada, 1996; Bomba, 1984; Bornstein & Arterberry, 2003; Oakes, Madole, & Cohen, 1991; Younger, 1993; see Bornstein, 1984; Quinn & Eimas, 1996, and Madole & Oakes, 1999, for reviews). Many studies have analyzed the bases of infant categorization by focusing on features intrinsic to objects, like the face or type of movement (e.g., Arterberry & Bornstein, 2001, 2002; Quinn & Eimas, 1996; Vidic & Haaf, 2004). In the present study, we were concerned with the role of external context in determining object group membership for infants.…”