The pattern reversal VEP in short-gestation infants

Harding, G. F. A.; Grose, John H.; Wilton, A; Bissenden, J G

doi:10.1016/0168-5597(89)90053-1

Cited by 36 publications

(22 citation statements)

References 20 publications

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“…In fact, most of the previous studies examining the impact of preterm birth on cerebral visual pathways did not differentiate participants on the basis of neurologic status, which can introduce potential bias. For the most part, these studies provided information on a single time frame, generally the first year, 87 without considering the child from a developmental perspective.…”

Section: Discussionmentioning

confidence: 99%

Visual Development and Neuropsychological Profile in Preterm Children from 6 Months to School Age

et al. 2014

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The aim of this semilongitudinal study was to investigate the development of central visual pathways in children born preterm but without major neurologic impairments and to establish their cognitive and behavioral profile at school age. Ten children born preterm were assessed at 6 months and at school age, using visual evoked potentials at both time points and cognitive and behavioral tests at school age. We also tested 10 age-matched children born full-term. At 6 months' corrected age, we found no significant differences between preterm and full-term groups for either amplitude or latency of N1 and P1 components. At school age, the preterm group manifested significantly higher N1 amplitudes and tended to show higher P1 amplitudes than the full-term group. We found no significant differences in cognitive and behavioral measures at school age. These results suggest that preterm birth affects visual pathways development, yet the children born preterm did not manifest cognitive problems.

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Section: Discussionmentioning

confidence: 99%

Visual Development and Neuropsychological Profile in Preterm Children from 6 Months to School Age

et al. 2014

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“…The recording epoch needs to be long, as the components appear at 200-500 ms; a sweep of 1 second is recommended. The waveforms are large, however, and only a few trials (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) are needed per average. Pryds et al 14 report reliable VEPs in premature infants recording only three trials, using very long interstimulus intervals.…”

Section: Flash Vepsmentioning

confidence: 99%

Use of evoked potentials in preterm neonates.

Taylor

Saliba

Laugier

1996

Archives of Disease in Childhood - Fetal and Neonatal Edition

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“…In terms of subcortical responses, by 31 weeks, wavelet components from flash visual evoked potential (VEP) can be recorded (Chin, Taylor, Menzies, & Whyte, 1985; Hrbeck, Karlberg, & Olsson, 1973; Kurtzberg & Vaughan, 1985; Leaf, Green, Esack, Costeloe, & Prior, 1995; Taylor, Menzies, MacMillan, & Whyte, 1987; Watanabe, Iwase, & Hara, 1972). In terms of cortical responses, by 30 weeks, pattern reversal VEPs can be recorded (Grose, Harding, Wilton, & Bissenden, 1989; Harding, Grose, Wilton, & Bissenden, 1989), and steady-state pattern VEP can be recorded by 35 weeks (Birch, Birch, Hoffman, & Uauy, 1992; Birch, Birch, Petrig, & Uauy, 1990). In terms of behavioral responses, preferential looking behavior with highly visible stimuli can be demonstrated by 34–35 weeks, although pursuit and spontaneous scanning do not emerge until later (Brown & Yamamoto, 1986; Hack, Mostow, & Miranda, 1976; Hack, Muszynski, & Miranda, 1981; Robinson, 1966).…”

Section: Introductionmentioning

confidence: 99%

Chromatic and luminance contrast sensitivity in fullterm and preterm infants

Bosworth¹,

Dobkins²

2009

Journal of Vision

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In order to investigate the contributions of visual experience vs. preprogrammed mechanisms on visual development, the current study compared contrast sensitivity in preterm vs. fullterm infants. If development is tied to time since conception, preterm infants should match the developmental trajectories of fullterm infants when plotted in postterm age. By contrast, if development is influenced by visual experience, preterm and fullterm infants should match when plotted in postnatal age. Luminance (light/dark) and chromatic (red/green) contrast sensitivities (CS) were measured in 25 preterm (born, on average, 6.6 weeks early) and 77 fullterm infants, between 1 and 6 months postterm. In the first few months, luminance CS was found to be predicted by postterm age, suggesting that preprogrammed development is sufficient to account for luminance CS. By contrast, chromatic CS exceeded that predicted by postterm age, which suggests that time since birth confers a benefit on chromatic CS. The preterms’ 6.6 weeks of additional time since birth is roughly equivalent to 3.7 weeks of development in chromatic CS. In sum, these results suggest that chromatic CS is more influenced by early postnatal visual experience than luminance CS, which may have implications for development of parvocellular and magnocellular pathways.

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The pattern reversal VEP in short-gestation infants

Cited by 36 publications

References 20 publications

Visual Development and Neuropsychological Profile in Preterm Children from 6 Months to School Age

Visual Development and Neuropsychological Profile in Preterm Children from 6 Months to School Age

Use of evoked potentials in preterm neonates.

Chromatic and luminance contrast sensitivity in fullterm and preterm infants

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