2014
DOI: 10.1371/journal.pone.0093252
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Spectral Parameters Modulation and Source Localization of Blink-Related Alpha and Low-Beta Oscillations Differentiate Minimally Conscious State from Vegetative State/Unresponsive Wakefulness Syndrome

Abstract: Recently, the cortical source of blink-related delta oscillations (delta BROs) in resting healthy subjects has been localized in the posterior cingulate cortex/precuneus (PCC/PCu), one of the main core-hubs of the default-mode network. This has been interpreted as the electrophysiological signature of the automatic monitoring of the surrounding environment while subjects are immersed in self-reflecting mental activities. Although delta BROs were directly correlated to the degree of consciousness impairment in … Show more

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Cited by 31 publications
(40 citation statements)
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References 84 publications
(127 reference statements)
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“…Additionally, we also observed the reduction of BROrelated precuneal activation in MA compared to PF (Figure 4 Δ PF − Δ MA ), which is consistent with the activation of this region during mental arithmetic processing-particularly in subtraction tasks (Fehr et al, 2007;Kong et al, 2005). gyri during PF is consistent with previous reports (Berman, Horovitz, Morel, & Hallett, 2012;Bonfiglio et al, 2014;Liu et al, 2017), and may be related to sensory processing of blink-related information as these regions have been previously linked with visual processes including complex image encoding, face perception, and object recognition (Bar et al, 2001;Machielsen, Rombouts, Barkhof, Scheltens, & Witter, 2000;Weiner & Zilles, 2016). These findings help to validate the involvement of the precuneus regions in BRO effects.…”
Section: Reduction Of Bro-related Cortical Activations Under Cognitsupporting
confidence: 91%
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“…Additionally, we also observed the reduction of BROrelated precuneal activation in MA compared to PF (Figure 4 Δ PF − Δ MA ), which is consistent with the activation of this region during mental arithmetic processing-particularly in subtraction tasks (Fehr et al, 2007;Kong et al, 2005). gyri during PF is consistent with previous reports (Berman, Horovitz, Morel, & Hallett, 2012;Bonfiglio et al, 2014;Liu et al, 2017), and may be related to sensory processing of blink-related information as these regions have been previously linked with visual processes including complex image encoding, face perception, and object recognition (Bar et al, 2001;Machielsen, Rombouts, Barkhof, Scheltens, & Witter, 2000;Weiner & Zilles, 2016). These findings help to validate the involvement of the precuneus regions in BRO effects.…”
Section: Reduction Of Bro-related Cortical Activations Under Cognitsupporting
confidence: 91%
“…To enable quantitative assessment of blink behavioral characteristics across individuals, features were extracted from the vEOG recording that corresponded to different aspects of blink morphology ( Figure 1a) (Bonfiglio et al, 2014;Liu et al, 2017). Features were derived at the individual level after averaging together all identified blink events, and compared at the group level using paired t-test to examine within-subject behavioral differences between the MA and PF tasks.…”
Section: Data Preparation 241 | Eog: Blink Detection and Behaviormentioning
confidence: 99%
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“…Coma Recovery Scale) in order to avoid misdiagnosis [55]. Some researchers look for new methods of assessing levels of consciousness, as such a diagnosis has great ethical, personal and economical consequences for patients and medical staff [24], [41], [54]. In recent years a lot of effort has been put into studies of disorders of consciousness (minimally conscious state, unresponsive wakefulness syndrome/vegetative state, and coma) using resting-state fMRI as a tool to assess intrinsic functional connectivity of brain networks.…”
Section: Studies Of Disorders Of Consciousnessmentioning
confidence: 99%