Maturation of Cyclopean Visual Evoked Potential Phase in Preterm and Full-Term Infants

Abstract

Although development of binocularity is an extremely experience-dependent process, our data suggest that DRDC-VEP phase and P1 latency mature independently from visual experience. We propose that both the phase shift and decreasing P1 latency are indicators of myelination and increasingly faster signal transmission in the developing visual system.

Early exposure to environmental sounds and the development of cortical auditory evoked potentials of preterm infants during the first three months of life

“…In that study [48], the stimulus was a click while we used speech stimuli (the phoneme /da/). Also, we used the latency of the P1 component as a biomarker, the gold standard for evaluating the maturation of cortical auditory pathways [17,21,[23][24][25][49][50][51][52][53][54][55].…”

“…The earliest components are called P1 and N1 and are already present in newborns [17,18]. The latency of the P1 component shows a steady decrease until it stabilizes in adulthood [19][20][21][22] and has been proposed as a biomarker for the maturation of cortical sensory pathways [17,21,[23][24][25][49][50][51][52][53][54][55]. In the present study, we evaluate the development of the cortical auditory pathway of late preterms in the rst three months of life.…”

Calibrating vision: Concepts and questions

“…Other aspects of visual development, such as visual acuity, have also been identified as experienceindependent based on the pre-term approach (e.g., Brown & Yamamoto, 1986). In addition, comparison of VEP components in pre-and full-term infants, such as the P1 peak latency which indicates the general maturation of the visual system, reveal experience-independent processes are at play postnatally as well (Mikó-Baráth et al, 2014).…”

Development of Three-Dimensional Perception in Human Infants

“…When VEPs are recorded during RDCs in adults, the alternation drives a significant response at the same frequency as that of a complete cycle of the stimulus (e.g., at the first harmonic), which consists of one correlated and one anticorrelated segment . In infants under 6 months, the second harmonic tends to be the component that is significantly driven rather than the first, which corresponds to twice the frequency of the stimulus cycle and indicates that infants' VEPs are driven by any change in the level of binocular correlation instead of being driven only by the onset of binocular correlation (Mik ó- Baráth et al 2014). Braddick and colleagues (1980) used RDCs to measure binocular matching responses in 26 infants 1-9 months old.…”