Eyes-closed versus eyes-open differences in spontaneous neural dynamics during development

Adult lifespan trajectories of neuromagnetic signals and interrelations with cortical thickness

“…First, the results are based on resting-state activity with eyes closed and may be different with eyes open data, which typically are more artifactual. The eyes open scenario might lead to less alpha power in the visual cortex ( Berger, 1929 ; Petro et al., 2022 ) and stronger age effects on theta power as previously reported in adolescents ( Petro et al., 2022 ). For MEG phase-connectivity, differences between eyes open and closed conditions have been largely unexplored, but fMRI studies point to effects beyond the visual cortex ( Agcaoglu et al., 2019 ; Patriat et al., 2013 ).…”

Early detection of Parkinson's disease: Systematic analysis of the influence of the eyes on quantitative biomarkers in resting state electroencephalography

“…The increased theta power has been shown to correlate with progressive hippocampal volume loss [ 79 , 80 ]. For reactivity, we found the increased relative theta power from EC to EO exhibited a peak difference in the parietal cortex in the control group and local peaks in the occipital and frontal cortices, which agrees with Petro et al [ 76 ]. By contrast, the increased theta power associated with eyes opening was not found in the PD group, but rather a downward trend in the frontal and occipital electrodes.…”

“…Our results agree with previous studies that proposed this measure as the most pronounced differences with the control group [ 24 , 40 , 74 ], besides its significant correlation in EC [ 75 ]. Theta activity is associated with a variety of cognitive and attentional processes involving both frontal and posterior cortical regions, including the periodic sampling of unattended visual information and navigation of the sensory environment [ 76 ]. This supports the idea that the PD group requires considerable cognitive and attentional resources for processing environmental information [ 77 ].…”

Objective Neurophysiological Indices for the Assessment of Chronic Tinnitus Based on EEG Microstate Parameters

“…Recent studies have shown significant differences in brain network activities between OE and CE resting states [29][30]. These variations under each condition provides a novel approach to detect sensory-related brain abnormalities, contributing to the quantitative monitoring of neurological disorders [31][32]. Additionally, research has identified complex interactions between brain sensory systems, such as vision and hearing, even though the full details of these interactions remain unclear [33].…”