Human infants' discrimination of changes in internal and external elements of compound visual patterns was investigated in four experiments employing a familiarization-novelty paradigm in which visual reinforcing patterns were presented contingent upon rate of high-amplitude nonnutritive sucking. (Author/JH)

The ability of 3-month-old infants to discriminate novel components of a pre-familiarized stimulus was assessed using an operant paradigm. Subjects were 20 infants; adult judgments were taken from 15 college students. (Author/JH)

Materials and equipment for an outdoor learning area where Mexican and Anglo kindergarten children can play and development motor skills and creativity were supplied by a $250 Instructor Dream Dollar award. (GB)

Investigated developmental changes in children's judgments of age of people in photographs with emphasis on judgments correlating age and physical size. Results were discussed in terms of previous age perception studies and Piagetian Theory. (DP)

Author claims that Piaget's account of the construction of reality needs modification and a shift in emphasis. (Author/MB)

Study attempted to determine the viability of optimal level theory as it pertains to infant perceptual and cognitive development. (Authors)

Aesthetic experience is to be viewed as a liberating discipline, an integral component of human life leading to a fuller expansion of consciousness and the actualization of the individual personality. (Author)

The conservation of distance and of length and the awareness of the horizontal and of the vertical do seem to significantly precede the measurement of length, but the results did not indicate that these four tasks have any developmental order among themselves. Bibliography, charts. (Author)

Paper presented at the Merrill-Palmer Conference on Research and Teaching of Infant Development, February 13-15, 1970. (JE)

Defines "critical thinking" and discusses specific instances in two novels which might be analyzed by students to detect fallacious reasoning by characters in literary works. (RD)

Results of this study of 72 4-month-old infants suggest caution in using an overt demonstration of habituation as a necessary index of perceptual learning. (Author/MG)