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Updated: Jun 30, 2026
Stimulus-specific Cortical Visual Evoked Potential Morphological Patterns
Published on: May 12, 2019
[Investigation of the morphometric parameters of the visual cortical region (Field 17) in perinatal brain damage]
Insights
Perinatal brain damage in infants leads to significant structural changes in the visual cortex (Field 17). These changes include reduced layer width and smaller neuron density, indicating impaired development.
Area of Science:
- Neuroscience
- Developmental Biology
- Pathology
Context:
- Studied autopsy brain specimens from infants with and without perinatal central nervous system damage.
- Focused on Field 17 of the visual cortex, a critical area for visual processing.
Purpose:
- To investigate the structural characteristics of the visual cortex in infants with perinatal brain damage.
- To compare these characteristics with a control group of healthy infants.
Summary:
- Infants with perinatal brain damage exhibited reduced width in cortical layers I and V compared to controls.
- Smaller neurons and decreased neuronal density were observed in layers III, V, and VI+VII in affected infants.
- No correlation was found between increased cortical plate width and age in infants with perinatal pathology.
Impact:
- Findings suggest growth retardation and non-specific structural and functional alterations in the visual cortex due to perinatal brain damage.
- Highlights the long-term structural consequences of early-life brain injury on visual development.
Abstract:
Autopsy brain specimens from babies who had experienced perinatal central nervous system damage and those who had shown no symptoms of brain lesion (a control group) were used to study the structural characteristics of Field 17 of the visual cortical region, by using computed morphometry. As compared with the control group, the children who had suffered from perinatal pathology showed no relationship between the increased width of a cortical plate diameter and the baby's age and Layers I and V had a significantly less width. In most cases Layers III, V and Layer VI + VII contained smaller neurons and the density of their arrangement was much less than in the brain of the control babies. It was concluded that the detected disorders suggest growth retardation and nonspecific structural and functional changes in the visual cortex in perinatal brain damage.
