title: Chromatic visual evoked potential responses in preschool children.
abstract: The purpose of the study was to analyze chromatic visual evoked potential (VEP) responses to isoluminant red-green (R-G) and blue-yellow (B-Y) stimuli in 30 preschool children (1.5-6 years). The predominant part of the response consisted of a positive (P) wave, which showed age-related latency changes (linear decrease). P wave latency was shorter when using 21° compared to 7° R-G (p=0.004) and B-Y (p=0.044) stimulus and also when using 21° R-G compared to 21° B-Y stimulus (P=0.000). P wave amplitude did not show age-related changes. However, a lower amplitude was recorded when using 7° R-G stimulus (p=0.0013) and also when using B-Y compared to R-G stimulus. We may conclude that chromatic VEP to R-G and B-Y stimuli is reliably recorded in preschool children and that P wave to R-G stimulation shows a higher amplitude and shorter latency than to B-Y stimulus.
authors.affiliation: Eye Clinic, University Medical Centre, Grablovičeva 46, Ljubljana 1000, Slovenia. manca.tekavcic‐pompe@guest.arnes.si
authors.forename: Manca Tekavčič
authors.initials: MT
authors.lastname: Pompe
authors.forename: Branka Stirn
authors.initials: BS
authors.lastname: Kranjc
authors.forename: Jelka
authors.initials: J
authors.lastname: Brecelj
mesh_terms: D002675:Child, Preschool; D003118:Color Perception / Q000502:physiology*; D005074:Evoked Potentials, Visual; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male