Franchak, John M What infants know and what they do: perceiving possibilities for walking through openings. [electronic resource] - Developmental psychology Sep 2012 - 1254-61 p. digital Publication Type: Journal Article; Research Support, N.I.H., Extramural ISSN: 1939-0599 Standard No.: 10.1037/a0027530 doi Subjects--Topical Terms: Awareness--physiologyDecision Making--physiologyFemaleHumansInfantInfant Behavior--physiologyMalePerceptionPsychomotor PerformanceWalking