In a visual habituation experiment, infants watched a circle (the "agent") move toward another circle by jumping over a barrier or jumping without a barrier present, and then watched a circle move straight to another circle. Found that infants were able to identify the agent's spatial goal and to interpret the agent's actions causally in…

Examined how the nature of spatial relations influences children's ability to remember relations between progressively larger landmarks and spatial regions. Found that when asked about the location of an object, children clearly understood that they should provide the landmark with which the object was positioned. However, referential…

Gender differences in cognitive abilities were studied in 1,224 13-year olds using a multivariate latent variables approach. No gender differences were found in the structure of cognitive abilities, but mean differences in favor of females were found for general intelligence, with higher means for males on most spatial dimensions. (SLD)

Two studies examined four- and five-month-old infants' behaviors of leaning forward toward, and reaching for, an object placed within or beyond their reach. Infants who did not lean forward showed a decline in reaching behavior when the object was placed beyond their reach. (MDM)

Investigated the use of spatial relationships in the PROLOG programing language to help students express declarative thinking. Declarative thinking is a process of describing the environment that involves the recognition of relationships between entities. (BC)

Comparison of 2 totally blind, 2 visually impaired, and 9 normally sighted children (ages 5-8) on tasks of visual perspective taking found that the totally blind children were older than the other children when they mastered the tasks, made the highest percentage of errors before mastery, and made different errors. (Author/DB)

A study examined how well children could discriminate matches from nonmatches of multicomponent stimuli within the prototypic mental rotation task and how long it would take them to make such discriminations. The goal was to determine whether children are differentially sensitive to the various spatial features of visual stimuli and whether…

Children, ages 9 to 13 years, made judgments of proportion with a variety of graphical elements in 2 experiments. A characteristic pattern of over- and underestimation was observed; this pattern was also present, but previously unnoticed, in judgments made by adults. (MDM)

Two experiments examined the question of whether blindfolded young children and congenitally blind children show mental practice effects for blind movements that cross the body midline. Results suggested that young children with sight can show mental practice effects in the absence of visual cues. (GLR)

Spatial referencing in American Sign Language (ASL) functions at both the lexical and the discourse levels. In discourse, it can be used by a signer to produce cohesion in comparisons, performatives, and time mapping. The occurrence and function of spatial referencing in an ASL text as it produces cohesion is examined. (11 references) (Author/JL)

Describes a study that was conducted with graduate students to verify empirically that the conventional spatial arrangements of diagrams illustrating relationships among concepts are interpreted consistently and to examine the role of spatial arrangements in establishing meaning. Implications of results for graphic and instructional designers are…

Two experiments found that (1) by age 8 months infants perceived that leaning extends their effective reaching space to grasp objects; (2) by 10 months they perceived the effective limits of leaning and reaching; and (3) by 12 months they began to perceive how this space may be extended by a mechanical aid. (MDM)

Investigated whether visuospatial deficits displayed by chronic alcoholics are present in persons at risk for alcoholism. Compared 17 social drinkers who were children of alcoholics and 17 who had no family alcoholism history. Visuospatial learning of children of alcoholics was significantly poorer than that of subjects with no family alcoholism…

In an Illinois study of the degree to which availability of alternative recreational opportunities influenced household expenditures, relative effects of site characteristics were compared to spatial context within which recreators made destination choices. The principal factors influencing per person per day expenditures were agglomerative and…

Defines spatial structuring as the mental operation of constructing an organization or form for an object/set of objects. Examines in detail students' structuring and enumeration of two-dimensional rectangular arrays of squares. Concludes that many students do not see row-by-column structure. Describes various levels of sophistication in students'…