This thesis work is mainly focused on two problems related to improving accessibility of information graphics for visually impaired users. The first problem is automated analysis of information graphics for information extraction and the second problem is multi-modal representations for accessibility. Information graphics are graphical…

Investigates the differences between rehearsal span and memory span and evaluates the research of Dalrymple-Alford (1967) on the part of rehearsal on reinforcing memory traces. (Author/RK)

Mixed lists of digit pairs and consonant pairs were presented under Sternberg's scanning paradigm. The results indicated that the subjects partitioned this material into discriminable subsets but apparently only used that structure to reduce response latency when the test probes were negative. Probe familiarity is discussed as a basis for this…

Forty-eight high and forty-eight low dogmatic subjects received neutral information about fictitious countries from sources who were positive, unbiased (neutral) or negative toward the country. It was concluded that closed-minded people react to surface indicators of validity whereas open-minded people use the characteristics of a description to…

In three experiments the location of pigeons was monitored during 20-second illuminations of a right or left key presented in various temporal relationships with food delivery. In general, subjects approached a signal positively correlated with food and withdrew from a signal negatively correlated with food. (Editor)

Subjects responded to pairs of test items from learned linear orderings (e.g., Tom is taller than Dick; Dick is taller than Sam, etc.). Results are compared with previous studies of ordered linguistic, perceptual, and numerical information. (Editor/RK)

Separation thresholds for groups of 26 dyslexic and normal children attending the first year of secondary school were obtained with pairs of identically-oriented and spatially-overlapping straight lines presented at orientations varying from zero to 90 degrees. (Editor)

Three experiments are reported that were designed to delineate the properties of the stimulus encoding stage in reaction time tasks of varying stimulus-response compatibility. (Editor)

The concept of a scene schema was used to predict the kinds of information that will be remembered from complex pictures over relatively long periods of time. Recognition of eight types of transformations on both organized and unorganized pictures was tested either immediately following presentation or at intervals of a day, a week, or 4 months.…

The effect of time of awareness of a subsequent test of recall and the relationship of that awareness and rote rehearsal were studied by telling subjects which specific items to encode before the item's presentation (prior instructions) or after its rehearsal (postrehearsal instructions) and by varying rehearsal intervals for individual items.…

The purpose of this research was (a) to determine whether or not an emotional response, as measured by palmar skin conductance, does accompany a critical item, and (b) if it does, to investigate its relationship to the deficit in recognition memory. (Author/RK)

The concepts of iconic memory and schematic memory are used to examine two fundamental and related features of the contemporary theory of visual information processing. (Editor)

Considers several recent information-processing models of sentence-picture matching to assess their implications for sentence processing. (Editor/RK)

Three experiments were conducted to investigate whether semantic information presented to the unattended ear in a dichotic listening experiment has a memory effect after 30 seconds. (Editor)

Paranoid and nonparanoid schizophrenics were compared to normals in their performance on a sentence verification task. Results were related to past evidence and hypotheses about central processing performance among schizophrenics. (Editor/RK)