For infants from 3 to 6 months old, novel stimuli commanded significantly more attention than familiar stimuli on both immediate and delayed tests of stimulus recognition. (MH)

Approximately 150 references divided into 20 categories such as Cognition, Computers, and Curriculum. (LS)

Described and discussed is the use of discs for visual recordings to be played on television screens. (LS)

Questions Husaim and Cohen's basic assumption that stimulus dimensions or attributes defined by the experimenter have psychological reality for infant subjects. Suggests that infants may perceive different attributes in the stimulus, or they may not articulate the stimulus into attributes at all. (Author/RH)

Experiments investigated whether more elements in the upper part of a visual configuration influenced newborns' preference for face-like patterns. Findings indicated that newborns preferred nonface-like stimuli with more upper part elements over nonface-like stimuli with more lower elements, but did not prefer face-like over nonface-like stimuli…

Results provided evidence that 6- and 12-week-old infants' preferences for a moving set of stripes over a stationary set were based on the velocity rather than on the temporal frequency of stripe movement. Estimated velocity thresholds of 9 degrees per second for 6 week olds and 4 degrees per second for 12 week olds extended results of previous…

Fundamental concepts of Gaussian Recognition Theory are reviewed, and one of the major theorems used to test for perceptual independence among stimulus dimensions is disputed through a relatively simple counterexample. An amended version of the theorem, Theorem 4, is offered, and a simulation demonstrates its utility. (SLD)

R. N. Shepard (1987) has proposed a universal exponential law of stimulus generalization, yet experimental data are often Gaussian in form. Theories have been proposed to reconcile the discrepancy, but as proposed here, a simple discrete diffusion process may underlie both types of gradient. (SLD)