This study was based on a thesis submitted by the first author as partial fulfillment of the degree of Master of Arts at the George Washington University, Washington, D. C.

Article based on speech given before First Annual National Conference on Visual Literacy (Rochester, New York, March, 1969).

A multiple habituation paradigm was used to determine whether 10- to 12-month-old infants were able to discriminate between visual arrays differing only in their numerosity. (Author/RH)

Presents and analyzes three experiments on prefix stripping. Results show that pseudoprefixed words are indiscriminately treated as prefixed words and concludes that prefix stripping does occur in word recognition and that prefixed words are accessed through a representation of their stem. (Author/BK)

Four experiments were conducted to investigate the development of visual accommodation in one- to three-month-old infants. Accommodation responses and pupil diameters were measured at various stimulus distances. Results suggest that changes in depth of focus in the first three months are largely responsible for growth in accommodation. (Author/SS)

One- to four-month-old infants' abilities to see various structural characteristics of a subjective contour figure were assessed by means of a habituation procedure. (Author/DB)

The capacity of newborn infants for smooth-pursuit eye movements in single-target tracking and in optokinetic nystagmus to a moving striped field was examined utilizing DC electrooculography. (JMB)

Attempts to differentiate the serial habituation hypothesis from the regression to the mean hypothesis as explanations for the reduction of visual fixations in the form perception of four-month-old infants. Results support a regression to the mean interpretation of the data. (JMB)

The thesis of this article is that, in the drawings of very young children, line is produced as a path before it is produced as a boundary. An explanation for this progression is proposed. (Author/JMB)

In three studies of infants' ability to perceive partially occluded objects with specific appearances, a screen alternately uncovered and covered either a connected or interrupted rectangle. Pattern of infants' looking times suggests that they perceive the unity of the partially occluded object by 6.5 months but did not perceive the form of the…

Assessed infants' and adults' adjustment of hand orientation before grasping objects. Found that infants modified their hand orientation to match the long axis of an object, did not make anticipatory hand adjustments before reaching through a narrow aperture to grasp an object, and oriented their hand to be parallel with the handle of an object.…