Power shift and connectivity changes in healthy aging during resting-state EEG. 2022

Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
Center for Mind/Brain Sciences (CIMeC), University of Trento, Corso Bettini 31, 38068 Rovereto, TN, Italy. Electronic address: alessio.perinelli@unitn.it.

The neural activity of human brain changes in healthy individuals during aging. The most frequent variation in patterns of neural activity are a shift from posterior to anterior areas and a reduced asymmetry between hemispheres. These patterns are typically observed during task execution and by using functional magnetic resonance imaging data. In the present study we investigated whether analogous effects can also be detected during rest and by means of source-space time series reconstructed from electroencephalographic recordings. By analyzing oscillatory power distribution across the brain we indeed found a shift from posterior to anterior areas in older adults. We additionally examined this shift by evaluating connectivity and its changes with age. The findings indicated that inter-area connections among frontal, parietal and temporal areas were strengthened in older individuals. A more complex pattern was shown in intra-area connections, where age-related activity was enhanced in parietal and temporal areas, and reduced in frontal areas. Finally, the resulting network exhibits a loss of modularity with age. Overall, the results extend to resting-state condition the evidence of an age-related shift of brain activity from posterior to anterior areas, thus suggesting that this shift is a general feature of the aging brain rather than being task-specific. In addition, the connectivity results provide new information on the reorganization of resting-state brain activity in aging.

UI MeSH Term Description Entries
D008279 Magnetic Resonance Imaging Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques. Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D009434 Neural Pathways Neural tracts connecting one part of the nervous system with another. Neural Interconnections,Interconnection, Neural,Interconnections, Neural,Neural Interconnection,Neural Pathway,Pathway, Neural,Pathways, Neural
D012146 Rest Freedom from activity. Rests
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D001931 Brain Mapping Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures. Brain Electrical Activity Mapping,Functional Cerebral Localization,Topographic Brain Mapping,Brain Mapping, Topographic,Functional Cerebral Localizations,Mapping, Brain,Mapping, Topographic Brain
D004569 Electroencephalography Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain. EEG,Electroencephalogram,Electroencephalograms
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000073656 Healthy Aging The development and maintenance of optimal physical, mental, spiritual, and social well-being and function with advancing age. Ageing Well,Aging Well,Healthy Ageing,Well Aging,Ageing, Healthy,Aging, Healthy,Aging, Well,Well, Ageing,Well, Aging
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

Related Publications

Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
November 2018, Neurobiology of aging,
Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
January 2012, Brain connectivity,
Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
September 2020, Brain connectivity,
Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
May 2014, Scientific reports,
Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
January 2021, Journal of neuroscience methods,
Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
January 2023, Frontiers in aging neuroscience,
Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
May 2022, Molecular autism,
Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
October 2014, The Journal of neuroscience : the official journal of the Society for Neuroscience,
Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
April 2013, Human brain mapping,
Alessio Perinelli, and Sara Assecondi, and Chiara F Tagliabue, and Veronica Mazza
October 2014, Biological psychology,
Copied contents to your clipboard!