The Electrocortical Correlates of Fluctuating States of Attention During Vigilance Tasks by National Aeronautics and Space Adm Nasa
Author: National Aeronautics and Space Adm Nasa
Published Date: 09 Nov 2018
Publisher: Independently Published
Language: English
Format: Paperback::92 pages
ISBN10: 173095149X
File Name: The Electrocortical Correlates of Fluctuating States of Attention During Vigilance Tasks.pdf
Dimension: 216x 280x 5mm::236g
Download Link: The Electrocortical Correlates of Fluctuating States of Attention During Vigilance Tasks
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During navigation of complex environments, the brain must continuously adapt to both external demands, such as fluctuating sensory inputs, and internal demands, such as engagement in a cognitively demanding task. MacNamara A, Hajcak G. Anxiety and spatial attention moderate the electrocortical response to aversive pictures. Neuropsychologia. 2009; 47 (13):2975 80. MacNamara A, Kappenman ES, Black SR, Bress JN, Hajcak G. Integrating behavioral and electrocortical measures of attentional bias toward threat. In: Barrett KC, Fox NA, Morgan GA, Fidler D, Daunhauer L, editors. Human time perception is influenced by various factors such as attention and drowsiness. Nevertheless, the impact of cerebral vigilance fluctuations on temporal perception has not been sufficiently explored. We assumed that the state of vigilance ascertained by electroencephalography (EEG) during the perception of a given auditory rhythm would In conclusion, one night of sleep deprivation had strong effects on psychomotor vigilance performance, sleepiness, and on affect. The association of sleepiness and affective responses to sleep deprivation, although separately for objective and subjective measures, should be explored in greater attention in experimental research. With appropriate reallocation of central resources, the ability to maintain an erect posture is not necessarily degraded by a concurrent motor task. This study investigated the neural control of a particular postural-suprapostural procedure involving brain mechanisms to solve crosstalk between posture and motor subtasks. Participants completed Our results suggest that loss of strict negative correlation between oddball task-positive and task-negative activation reflects the effects of TSD, while the actual state of vigilance during task performance can affects either task-related or task-negative activity, depending on the exact vigilance EEG-based measures of cognitive states, task engagement and mental workload. Both measures increase as a function of increasing task demands but the engagement measure tracks demands for sensory processing and attention resources while the mental workload index was developed as a measure of the 57 Alzheimer s disease (AD) and 30 controls) with clinical scores of FC were assessed using an attentional task. Cortical arousal was assessed in 25 of these patients using electroencephalography. Over 90 s both variability in attention (p50.0001) and fluctuations in electrocortical activity (p50.0001) correlated with clinical FC scores, and The electrocortical correlates of fluctuating states of attention during vigilance tasks (English Edition) eBook: National Aeronautics and Space Administration NASA: Kindle-Shop Electrocortical and ocular indices of attention to fearful and neutral faces presented under high and low working memory load Annmarie MacNamaraa,,Joseph Schmidtb, Gregory J. Zelinskya, Greg Hajcaka a Department of Psychology, StonyBrook University, Brook, NY 11794-2500, USA b Department ofPsychology, University South Carolina, Columbia, SC The electrocortical correlates of fluctuating states of attention during vigilance tasks eBook: National Aeronautics and Space Administration NASA: Kindle Store Skip to main content. Try Prime Hello, Sign in Account & Lists Sign in Account & Lists Orders Try Prime
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