To investigate human visual identification of different-sized objects as identically shaped, matching reaction times were measured for pairs of simultaneously presented random figures. (Editor)

Studies employing schematic faces of three features explored the role of the left hemisphere as an analytic processor in difficult discriminations and the role of the right hemisphere in easy gestalt matches. (Editor)

Results from the measurement of latencies of prespecified subject-verb-object utterances indicate the Semi-predicate model is consistent with hesitation studies in demonstrating that speech is initiated before all information about at utterance has been processed or linguistically coded. (Author/BJG)

Two experiments were designed to test a number of finite-state self-terminating memory-scanning models for choice reaction times. (Editor)

Certain characteristics of a Taylor (1965) competitive reaction time task contribute to a lack of awareness of contingencies that exist between two aggressors. The opponent's contingent response to the subject's specific shock setting may be obscured by the reaction time competition, thus concealing the matching contingency. Nine separate steps…

This study was designed to determine the accuracy with which a student in a computer-based testing situation will be able to accurately communicate the selected answer to the computer. Such a test was administered to 34 students, with the answer to each item supplied. Examinees, who were identified as touch typists or non-typists, used either the…

This paper reports two related experiments, the first investigating whether children 3-7 years old demonstrate Flavell's Level-2 perspective-taking in a cognitively simple task, and the second re-examining children's performance on a task comparable to the Piagetian 3-mountain perspective-taking task. The first experiment involved a task which…

After it had been determined that reaction time (RT) was a sensitive measure of hemispheric dominance in a verbal task performed by normal adult readers, the reaction times of three groups of subjects (20 normal reading college students, 12 normal reading third graders and 11 poor reading grade school students) were compared. Ss were exposed to…

An earlier study indicated that a subject's performance on simple mental tasks, such as tracing soluble and unsoluble geometric designs and proofreading, was not affected by background noise regardless of its intensity, unpredictability, or uncontrollability. But, since background noise did have a significant effect on postnoise task performance,…

Students in grades 4, 6, and 8 were required to indicate whether or not a stimulus word belonged in either of two semantic categories that were held in memory. Results indicated that even for the youngest children semantically similar categories required less search time than dissimilar categories. (GO)

The tendency to inspect visual material (slides) rather than to move on to the next slide was compared among introverts and extroverts. Results show: 1) extroverts inspected stimuli for a shorter time; 2) extroverts made more and faster reponses; 3) extroverts produced significantly higher proportion of runs of accelerating responses. (Editor/RK)

Traces the developmental history of information processing in elementary school children as measured by a numerals-keys choice response paradigm. Also attempts to correct some of the more obvious methodological problems observed in previous students of this type. (Author/MP)

Investigates three alternative explanations for why younger children benefit more than older children from the provision of category size information when recalling items from a categorized list. Subjects were 29 kindergarten and 30 third grade children. (MP)

Examines the verification of false sentences of the form "All S are P." It was found that the number of properties shared by the subject and predicate concept of the sentence was directly proportional to reaction time. These findings question the assumption that only property relations are prestored in memory. (Author/EJS)

Investigates relations between time estimation ability and reaction time performance. Time estimation and forewarned reaction time tasks were used. Significant age and interval related differences were found. Findings were thought to be significant for developmental research and clinical assesment. (RH)