An inquiry into the origins of dynamical awareness shows that impressions of dynamical quantities are not generally correlated with the values that these quantities take in equations of motion but are highly correlated with simple ratios of kinematic quantities or with specific kinematic features that do not specify underlying dynamics. (SLD)

The role of occlusion configurations in binocular vision was studied in 4 experiments with 10 adult observers. Results reveal that occlusion relationships are sensed during the earliest stages of binocular processing. A simple theoretical framework that unifies fusion, stereopsis, and occlusion is advanced. (SLD)

Examined infants' ability to locate an invisible target after instrumental and association training. After instrumental training, localization was dependent on visual cues, whereas after association training, it occurred with or without visual cues. Concluded that an updating strategy based on proprioceptive information is operative from the…

It is proposed that there is a modular but interconnected system underlying the perceived hierarchical organization of objects. The discussion centers on neural and cognitive mechanisms of organizing objects within objects in at least four separate subsystems. (SLD)

Discusses how advancements in computer graphics technology, especially hypermedia, are changing the language of visual communication and defining multidimensional communication models that require new perspectives in information design. Suggests that an understanding of these new communication models can be enhanced by examining works of…

Presents a study in which ads in simulated telephone directory pages were highlighted in red, green, and blue colors. States that the pages were presented to subjects in order to be recalled and recognized among other ads. Finds that red and green highlighting increases recallability and recognizability whereas blue decreases it. (PA)

Discusses the role of theoretical knowledge in seeing and makes the case that direct and indirect forms of cognitive perception are pervasive forms of seeing in educational practice, and that both forms are fundamentally theory laden. Suggests that theoretical knowledge enhances our capacity to see in practice. (SLD)

Examines children's ability to use their knowledge to guide their behavior in a dimensional change, color-shaped card sort. Subjects were asked to sort cards according to different guidelines. Four experiments were carried out which show a disassociation between knowledge and its use. Findings indicate that knowing rules is sometimes insufficient…

Presents an illusional arena by offering experience in optical illusions in which students must apply critical analysis to their innate information gathering systems. Introduces different types of depth illusions for students to experience. (ASK)

In this study, the looking behavior of 16 autistic and 14 non-autistic children toward cartoon-like scenes that included a human figure was measured quantitatively using an infrared eye-tracking device. Fixation behavior of autistic children was similar to that of their age-and IQ-matched normal peers. Results do not support the idea that autistic…

Four experiments utilizing the familiarization-novelty preference procedure examined whether 3- and 4-month-olds could form categorical representations for cats versus dogs from the perceptual information available in silhouettes. Findings indicated that general shape or external contour information centered about the head was sufficient for…

Humans are fast and accurate at performing an animal categorization task with natural photographs briefly flashed centrally. Here, this central categorization task is compared to a three position task in which photographs could appear randomly either centrally, or at 3.6 [degrees] eccentricity (right or left) of the fixation point. A mild…

Many studies in visual face recognition have supported a special role for the right fusiform gyrus. Despite the fact that faces can also be recognized haptically, little is known about the neural correlates of haptic face recognition. In the current fMRI study, neurologically intact participants were intensively trained to identify specific…

Three experiments examined 3- to 5-year-olds' use of eye gaze cues to infer truth in a deceptive situation. Children watched a video of an actor who hid a toy in 1 of 3 cups. In Experiments 1 and 2, the actor claimed ignorance about the toy's location but looked toward 1 of the cups, without (Experiment 1) and with (Experiment 2) head movement. In…

Four visual imagery tasks were presented to three groups of adolescents with or without spastic diplegic cerebral palsy. The first group was composed of six adolescents with cerebral palsy who had associated visual-perceptual deficits (CP-PD), the second group was composed of five adolescents with cerebral palsy and no associated visual-perceptual…