Visual event-related brain potentials in 4-month-old infants at risk for neurodevelopmental impairments

Developmental Psychobiology
Raye-Ann deRegnierC A Nelson

Abstract

The recording of event-related potentials (ERPs) is an electrophysiologic technique that has been used to evaluate the functional maturation of neural pathways responsible for recognition memory systems in infants and children. The purpose of this study was to evaluate ERP correlates of visual recognition memory in 4-month-old infants at risk for later cognitive impairments. We compared ERPs using a test of shape recognition at 4 months of age (adjusted for prematurity) in 16 high-risk, neonatal intensive care unit (NICU) survivors and 16 healthy full-term infants. ERPs were recorded while infants were familiarized with one stimulus (a red cross, 15 trials), then tested with 60 trials of this familiar stimulus and a novel stimulus (a red corkscrew). Both the NICU and control groups' ERPs demonstrated evidence of differential processing of the two stimuli, but the NICU groups' ERP patterns were distinctly different from those of the control group. In the NICU group, the novel stimulus elicited parietal positivity at 1000-1700 ms poststimulus, whereas in the control group the novel stimulus elicited occipital and frontal negativity at 500-1700 ms poststimulus. The ERP pattern demonstrated by the NICU group was atypical as it has ...Continue Reading

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Citations

Sep 23, 2003·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·S PotgieterL Lagae
Sep 4, 2001·Developmental Neuropsychology·C S MonkC A Nelson
May 8, 2013·PloS One·Giovanni MentoPatrizia Silvia Bisiacchi
Dec 5, 2008·The Journal of Pediatrics·N L Gonzalez-GonzalezJ L Bartha
Sep 17, 2011·Neuroscience and Biobehavioral Reviews·Giovanni Mento, Patrizia Silvia Bisiacchi
Aug 6, 2000·Pediatric Research·B Lozoff
Jul 24, 2003·Clinics in Perinatology·T Michael O'Shea, Donald J Goldstein

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