The examination of saccadic eye movements--rapid shifts in gaze from one visual area of interest to another--is useful in studying pilot's visual learning in flight simulator training. Saccadic eye movements are the basic oculomotor response associated with the acquisition of visual information and provide an objective measure of higher perceptual…

A model and a technique developed by Wing and Kristofferson (1973) decomposes variance of timing into that putatively due to a central timekeeper (a clock) and that due to implementation of movement through the motor system. A patient with unilateral cerebellar damage, when attempting to tap out a regular series of intervals, showed a large…

Describes an experiment measuring response latency which required subjects to make a word-nonword decision in response to a visually presented item. (AM)

Intra- and crossmodal performance of normal and retarded third-grade readers were compared in a reaction-time task. Results suggest that the demands of stimulus complexity within the visual modality rather than the demands of crossmodal shifting were related to reading ability. (Author/ED)

Research supported by U.S. Office of Education Contract OE-4-10-158 and Office of Naval Research Contract Nonr-624(18). Published under separate cover as part II of v60 n4.

A reaction-time experiment measured the time that subjects needed to read and comprehend a series of sentences, the syntactic form of which was systematically varied. The focus was on the effect of syntactic structure on processing time, reflected in reaction time in a neutral context, and the effect of prior context on time needed to process a…

The manner in which instructions to respondents influenced the psychometric results of an affective instrument was examined. Undergraduate students enrolled in an educational measurement course were randomly assigned to either immediate response or careful response treatments. A fifteen-item attitude scale was administered to both groups. The…

This study explored some ways that cognitive style (different individual patterns of perceiving, memorizing, organizing and utilizing stimuli) might influence intellectual achievements. It was specifically concerned with cognitive tempo--the individual's tendency to be either slow and accurate (reflective) or fast and inaccurate (impulsive). A…

This study investigates the perceptual processing capabilities by analysis of eye movement of children from differing levels of field independence/dependence. Forty nine field independent (24 girls, 26 boys) and 36 field dependent (19 girls, 17 boys) children in third grade were analyzed as they viewed either seven dynamic or seven static segments…

As part of a long term project relating individual differences in performance on paper and pencil tests of intellectual aptitude and achievement to differences observed in laboratory studies of cognition, data have been collected comparing test scores with simple choice reaction times. The three studies summarized here suggest that the…

This experiment was designed to determine the relationship between reaction time, error rate and performance on a variety of cognitive and social measures, as well as in relation to demographic variables (race, months at Yonge School, grade, and sex). Sixty students (first through third grade) were tested on the first fifteen items of the…

The purpose of this study was to examine the relationship between the various techniques used to estimate the time required by the human to process a visual stimuli, i.e., recognize a stimulus input into the visual perceptual system. Sixteen tests of visual processing speed were administered to 110 undergraduate students. In summary, scores tended…

This study relates excitatory and inhibitory personality variables of a heterogeneous group of severely retarded children to performance on a discrete trial, successive go-no-go intradimensional discrimination learning problem, which was followed by stimulus generalization tests on a color hue continuum and extinction trials. (GO)

Four experiments are reported in which relations of semantic distance to response latencies in similarity judgments, to reaction times in a same-different classification task, and to proximity of recall in a free recall task were investigated. (Author/RM)

In secondary-task reading experiments, easy text filled cognitive capacity more completely than difficult text. A cognitive interpretation is that, in reading easy passages, the cognitive processors are full. But in difficult passages, frequent breakdowns in comprehension temporarily empty processor spaces, leaving cognitive capacity for the…