Related Experiment Videos
The pattern reversal VEP in short-gestation infants.
G F Harding1, J Grose, A Wilton
1Department of Vision Sciences, Aston University, Birmingham, U.K.
Electroencephalography and Clinical Neurophysiology
|January 1, 1989
Summary
This study examined visual evoked potentials (VEPs) in premature infants, finding that the P1 component
Area of Science:
- Neuroscience
- Developmental Pediatrics
- Ophthalmology
Background:
- Premature infants exhibit unique visual system development.
- Visual evoked potentials (VEPs) are crucial for assessing visual pathway maturation.
Purpose of the Study:
- To investigate pattern reversal visual evoked potentials (VEPs) in premature infants.
- To correlate VEP components with gestational age in this population.
Main Methods:
- Pattern reversal VEPs and flash VEPs were recorded in 10 premature infants (32-35 weeks gestational age).
- Stimulation used a handheld monitor with 2-degree visual angle checks.
- VEPs were recorded on at least two occasions, starting before 37 weeks gestational age.
Main Results:
- A prominent P1 component (around 280 msec) was observed in pattern reversal VEPs.
- P1 component latency showed a negative correlation with increasing gestational age.
- Flash VEPs, unlike pattern reversal VEPs, often displayed an initial negative component.
Conclusions:
- Pattern reversal VEPs provide valuable insights into visual pathway development in premature infants.
- The maturational trajectory of the P1 component is linked to gestational age.