David B. Boles

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OBJECTIVE The objective was to assess the validity of the Multiple Resources Questionnaire (MRQ) in predicting dual-task interference. BACKGROUND Subjective workload measures such as the Subjective Workload Assessment Technique (SWAT) and NASA Task Load Index are sensitive to single-task parameters and dual-task loads but have not attempted to measure(More)
OBJECTIVE The aim of this study was to compare the effectiveness of a new index of perceived mental workload, the Multiple Resource Questionnaire (MRQ), with the standard measure of workload used in the study of vigilance, the NASA Task Load Index (NASA-TLX). BACKGROUND The NASA-TLX has been used extensively to demonstrate that vigilance tasks impose a(More)
Hemispheric asymmetry implies the existence of developmental influences that affect one hemisphere more than the other. However, those influences are poorly understood. One simple view is that asymmetry may exist because of a relationship between a mental process' degree of lateralization and how well it functions. Data scaling issues have largely prevented(More)
For practitioners, the importance of sex differences in lateralization lies in their potential prediction of susceptibility to and recovery from hemispheric damage. However, previous literature reviews suggest that sex accounts for only 0.1-1% of the variance in asymmetry scores. Here a large-sample, single-laboratory approach uses tasks requiring the(More)
In a recent paper, Chiarello, Welcome, Halderman, and Leonard (2009) reported positive correlations between word-related visual field asymmetries and reading performance. They argued that strong word processing lateralization represents a more optimal brain organization for reading acquisition. Their empirical results contrasted sharply with those of(More)
Tactile detection and two-point discrimination tests are commonly used in neurological examinations. However, questions remain about the influence of both body and patient characteristics on test thresholds. The left side of the body has sometimes been reported more tactilely sensitive than the right, and females are said to be more sensitive than males. We(More)
The purpose of the present study was to test the hypothesis that lateralised target detection in the visual modality would produce results similar in magnitude, reliability, and validity to those obtained in the auditory modality with an analogue task. Thus, it was expected that it would produce laterality effects that are larger, more reliable, and more(More)