Child HealthVISUAL FUNCTION IN THE NEWBORN INFANT: IS IT CORTICALLY MEDIATED?
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2023, Neuroscience and Biobehavioral ReviewsCurrent management of infantile cataracts
2022, Survey of OphthalmologyCitation Excerpt :In 1996, Birch and Stager demonstrated that visual prognosis for a child with a unilateral cataract may be improved by surgery before 6 weeks of age.132 Prior to 6 weeks of age, referred to as the latent period, vision loss due to form deprivation does not occur because the immature visual system is still reliant on subcortical pathways.71,133 A subsequent study showed that the latent period for bilateral visual deprivation may be as long as 10 weeks.134
Delayed neonatal visual evoked potentials are associated to asymmetric growth pattern in twins
2020, Clinical NeurophysiologyCitation Excerpt :Although VEPs occurring after a flash stimulus are considered to originate in cortical structures, earlier information processing stages in the primary visual pathway are involved during development. In fact, in the neonatal period and until around 48 weeks postmenstrual age, electrophysiological responses cannot be regarded as an index of cortical integrity because they are not cortically mediated (Atkinson, 1984) and VEP latencies correlate to the degree of myelination, synaptogenesis, and neuronal maturation of the primary visual pathways (Dubowitz et al., 1986; Birch and Bosworth, 2004). Remarkable developmental changes in neonatal VEPs have been assessed and several classifications of neonatal VEP waveforms are available in the scientific literature (Tsuneishi et al.,1995; Suppiej, 2007).
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2018, Volpe's Neurology of the NewbornEye-Hand-Mouth Coordination in the Human Newborn
2017, Pediatric NeurologyEye-Mouth Associated Movement in the Human Newborn and Very Young Infant
2016, Pediatric NeurologyCitation Excerpt :There is controversy about whether the visual processing in the human newborn is cortically mediated or mediated by subcortical structures.15-17 Dubowitz et al.18 reported that in very young infants lesions near the thalami were more likely to impair visual behavior than substantial involvement of the occipital cortex, and thereby suggested that until 48 weeks' postmenstrual age visual functions are mediated through subcortical pathways. In nonhuman primates visual processing has been reported to be mediated by subcortical structures at a very early stage after birth, and after some transitional period the cortical structures take over the processing.19,20