1. Gross motor development in infants blind from birth;Adelson;Child Development,1974
2. Theories of perception and the concept of structure;Allport,1955
3. The sequential patterning of prone progression in the human infant;Ames;Genetic Psychology Monographs,1937
4. Perception and discrimination as a function of stimulus orientation: The “oblique effect in man and animals.”;Appelle;Psychological Bulletin,1972
5. The development of behavioral competence in infancy;Appleton,1975