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THE TEST-RETEST RELIABILITY OF A STANDARDIZED NEUROCOGNITIVE AND NEUROPHYSIOLOGICAL TEST BATTERY: “NEUROMARKER”.

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Title: THE TEST-RETEST RELIABILITY OF A STANDARDIZED NEUROCOGNITIVE AND NEUROPHYSIOLOGICAL TEST BATTERY: “NEUROMARKER”.
Authors: WILLIAMS, L. M. (AUTHOR), SIMMS, E. (AUTHOR), CLARK, C. R. (AUTHOR), PAUL, R. H. (AUTHOR), ROWE, D. (AUTHOR), GORDON, E. (AUTHOR)
Source: International Journal of Neuroscience. Dec2005, Vol. 115 Issue 12, p1605-1630. 26p. 4 Charts, 3 Graphs.
Subjects: Electroencephalography, Databases, Short-term memory, Neuropsychology, Attention, Neuropsychological tests
Abstract: NeuroMarker combines EEG and ERP measures with neurocognitive tests in a fully computerized and standardized testing system. It is designed for use across the lifespan and has a large normative database of over 1,000 subjects. This study was a preliminary evaluation of “NeuroMarker” in subjects spanning four decades. Twenty-one healthy subjects (12–57 years) were tested at baseline and four weeks later. From the “Neuromarker” battery, the authors analyzed EEG data (eyes open and closed) and ERPs elicited during auditory oddball (N100, P200, N200, P300) and working memory (P150, P300) tasks. Concomitant neuropsychological data, acquired using a touch-screen system, comprised measures of sensori-motor, attention, verbal, executive, and memory function. Test-retest data were examined using analyses of variance and correlational procedures (corrected for multiple comparisons), with parallel analyses of age. EEG data did not differ across sessions, and showed high test-retest reliability (.71–.95), particularly for theta and delta (>.85). ERP components also showed sound reliability, particularly for sites where components are maximal: fronto-central N100 (.76–.77), centro-parietal P300 (.78–.81) to oddball targets, N100 and P200 (.74–.86) to oddball non-targets, and P150 amplitude and latency (.84–.93) to working memory stimuli. Neuropsychological tests showed a similarly sound level of consistency (on average, .70), with the most consistent tests tapping simple motor function, estimated intelligence, switching of attention (Part 2), verbal interference response time and memory intrusions (.71–.89). Age and sex did not have a differential impact on reliability for EEG, ERP, or neuropsychology measures. These findings provide preliminary evidence that the “NeuroMarker” battery is reliable for test-retest assessments. The results suggest that the standardized approach has utility for providing sensitive clinical and treatment evaluations across age groups. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Neuroscience is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: THE TEST-RETEST RELIABILITY OF A STANDARDIZED NEUROCOGNITIVE AND NEUROPHYSIOLOGICAL TEST BATTERY: “NEUROMARKER”.
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Neuroscience%22">International Journal of Neuroscience</searchLink>. Dec2005, Vol. 115 Issue 12, p1605-1630. 26p. 4 Charts, 3 Graphs.
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  Data: NeuroMarker combines EEG and ERP measures with neurocognitive tests in a fully computerized and standardized testing system. It is designed for use across the lifespan and has a large normative database of over 1,000 subjects. This study was a preliminary evaluation of “NeuroMarker” in subjects spanning four decades. Twenty-one healthy subjects (12–57 years) were tested at baseline and four weeks later. From the “Neuromarker” battery, the authors analyzed EEG data (eyes open and closed) and ERPs elicited during auditory oddball (N100, P200, N200, P300) and working memory (P150, P300) tasks. Concomitant neuropsychological data, acquired using a touch-screen system, comprised measures of sensori-motor, attention, verbal, executive, and memory function. Test-retest data were examined using analyses of variance and correlational procedures (corrected for multiple comparisons), with parallel analyses of age. EEG data did not differ across sessions, and showed high test-retest reliability (.71–.95), particularly for theta and delta (>.85). ERP components also showed sound reliability, particularly for sites where components are maximal: fronto-central N100 (.76–.77), centro-parietal P300 (.78–.81) to oddball targets, N100 and P200 (.74–.86) to oddball non-targets, and P150 amplitude and latency (.84–.93) to working memory stimuli. Neuropsychological tests showed a similarly sound level of consistency (on average, .70), with the most consistent tests tapping simple motor function, estimated intelligence, switching of attention (Part 2), verbal interference response time and memory intrusions (.71–.89). Age and sex did not have a differential impact on reliability for EEG, ERP, or neuropsychology measures. These findings provide preliminary evidence that the “NeuroMarker” battery is reliable for test-retest assessments. The results suggest that the standardized approach has utility for providing sensitive clinical and treatment evaluations across age groups. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of International Journal of Neuroscience is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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