Previous studies indicate that the benefits of dividing an information processing load across both cerebral hemispheres outweigh the costs of interhemispheric transfer as tasks become more difficult or cognitively complex. This is demonstrated as better performance when two stimuli to be compared are presented one to each visual field and…

To increase our understanding of the cognitive processes involved in internal working models of attachment, this study investigated the relationship between secure attachment and attentional breadth to mother using a dual task design. The content of the cues (mother vs. unfamiliar women) and the duration of the presentation of the cues (34 msec,…

We evaluated formation of simple symbolic categories from initial learning of specific dictated word-picture relations through emergence of untaught or derived relations. Participants were 10 individuals with severe intellectual and language limitations. Three experimental categories were constructed, each containing 1 spoken word (Set A), 1…

Three experiments are reported in which 15 babies were presented with visual stimuli which varied in shape and distance from the eye. Results indicated that the majority of subjects binocularly fixated all three stimuli and it was concluded that the newborn baby has the basic requirements for binocular vision. (Author/GO)

This study was designed to determine whether the effectiveness of stimulus intensity declines with age. The results indicated that infants 10 weeks and younger responded on the basis of size, while infants between 10 and 24 weeks looked more at a bull's-eye than at a striped pattern regardless of size. (JMB)

Article focused on R. L. Gregory's theory of distortion illustions and his defense of that theory. (RK)

A discussion of why the prime concern of the video programer should be the arrangement of the subject matter for visual rather than aural communication whenever possible. (Author)

Supported by Public Health Service Research Grant MH-12301-02 from the National Institutes of Health.

A paradox in studying sensory perception is that people often attend to a stimulus which provides the least optimal information. Usually, this is a visual stimulus. The study sought to lessen this reliance on vision by training subjects to respond to proprioceptive stimuli. Results are discussed. (Author/JL)

The authors describe a project to design a playground at the John de la Howe School in South Carolina using students' ideas. A list of ideas for making a playground into a mentally and physically stimulating environment is included. (CH)

Studies of orientation perception in infants and children have revealed an "oblique effect," that is, a performance advantage for tasks involving horizontal and vertical stimulus orientations compared with tasks involving oblique orientations. The two studies reported support the hypothesis that oblique stimulus orientations are treated…

Consistent with findings that infants respond to the orientation of a visual stimulus in a categorical-like manner, data obtained from two- and three-month-old infants viewing horizontal/vertical, non-mirror-image oblique, and mirror-image oblique stimulus pairs indicate that elements of oblique/oblique stimulus pairs were more frequently confused…

Results show that at eight months of age ability to identify the site of an event after reorientation is based on the spatial relationship between the event and environmental features. The latter include features associated with room shape as well as a landmark at the site of the event. (Author/RH)

Evaluates infants less than 1 week of age in a habituation-recovery paradigm for evidence of ability to detect an invariant identity or nonidentity relationship between components of a visual stimulus. (Author/NH)

Investigates the effect of target size and presence, intensity, and location of sound on the visual following of infants one and two months of age. (Author/RH)