P211 – 1968 Spatial patterning of oscillatory activities recorded by high-density electroencephalography in newborn infants

Pelc, Karine; Cebolla, AM; Dan, Javitt; Dewulf, Laurence; Johansson, AB; Chéron, Guy; Dan, Bernard

doi:10.1016/s1090-3798(13)70390-8

European Journal of Paediatric Neurology

2013

DOI: 10.1016/s1090-3798(13)70390-8

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P211 – 1968 Spatial patterning of oscillatory activities recorded by high-density electroencephalography in newborn infants

Karine Pelc¹,

AM Cebolla²,

Javitt Dan³

et al.

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“…Some early results suggest that disruptions in coherence, synchrony, or specific source localization for activities in frequency bands (e.g. the fusiform gyri for alpha band activity and the middle frontal gyri for beta activity), may be of special interest for outcome studies . Phenomenological delineation of endophenotypes may then be used for pathophysiolgical reasoning, management planning, and outcome measurements.…”

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“…related to muscle, movement, heart, sweat, or pulse) or non‐physiological (e.g. related to electrodes, alternating current, ventilators and other equipment, or movement in the vicinity), the feasibility of obtaining reliable, high‐quality signals has been demonstrated, including in event‐related potentials paradigms . We anticipate that pursuing this effort, along a longitudinal perspective, will precisely document individual developmental trajectories and provide an integrative approach to development, contributing towards diagnosis, prognosis, and management strategies.…”

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High‐density electroencephalography developmental neurophysiological trajectories

Dan

Pelc

Cebolla

et al. 2015

Develop Med Child Neuro

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HIE Hypoxic-ischaemic encephalopathyEfforts to document early changes in the developing brain have resulted in the construction of increasingly accurate structural images based on magnetic resonance imaging (MRI) in newborn infants. Tractography diagrams obtained through diffusion tensor imaging have focused on white matter microstructure, with particular emphasis on neuronal connectivity at the level of fibre tract systems. Electroencephalography (EEG) provides a complementary approach with more direct access to brain electrical activity. Its temporal resolution is excellent, and its spatial resolution can be enhanced to physiologically relevant levels, through the combination of high-density recordings (e.g. by using 64 channels in newborn infants) and mathematical models (e.g. inverse modelling computation), to identify generators of different oscillation bands and synchrony patterns. The integration of functional and structural topography of the neonatal brain provides insights into typical brain organization, and the deviations seen in particular contexts, for example the effect of hypoxic-ischaemic insult in terms of damage, eventual reorganization, and functional changes. Endophenotypes can then be used for pathophysiolgical reasoning, management planning, and outcome measurements, and allow a longitudinal approach to individual developmental trajectories.Over the last few years, there have been dramatic advances in the documentation of early structural changes in the developing brain, and improved understanding of the processes underlying these changes. On the macroscopic scale, many of these advances have concerned magnetic resonance imaging (MRI). Major research efforts have resulted in finely documenting the prenatal and early postnatal maturation of the cerebral cortex in terms of the evolution of cortical thickness and volume. Examples include the demonstration of several so-called 'transient fetal zones', which disappear before late infancy, such as the cortical plate. 1 In addition, three-dimensional reconstruction techniques provide qualitative as well as quantitative mapping of cortical folding, allowing the timescale of the appearance of gyri and sulci to be followed. These techniques can also be used to demonstrate some specific early asymmetries, such as the earlier emergence of gyral complexity in the right cerebral hemisphere than in the left. An alternative magnetic resonance neuroimaging approach, increasingly being used in research and clinical practice, is diffusion tensor imaging, which quantifies the random motion of water molecules. Restrictions to this motion are measured by fractional anisotropy and mean diffusivity. These measures indicate directional constraints and reflect the direction of fibre tracts. This interpretation is reinforced by the increasing recognition of the role of axonal membranes in diffusion anisotropy. Therefore, diffusion tensor imaging has provided important insights into the microstructure and organization of cerebral white matter.2 This approach has led t...

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confidence: 99%

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High‐density electroencephalography developmental neurophysiological trajectories

Dan

Pelc

Cebolla

et al. 2015

Develop Med Child Neuro

View full text Add to dashboard Cite

show abstract

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P211 – 1968 Spatial patterning of oscillatory activities recorded by high-density electroencephalography in newborn infants

Cited by 1 publication

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High‐density electroencephalography developmental neurophysiological trajectories

High‐density electroencephalography developmental neurophysiological trajectories

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