Visual Perceptual Integration Research Articles

Mental performance in 8-year-old children fed reduced protein content formula during the 1st year of life: safety analysis of a randomised clinical trial.

In humans, maximum brain development occurs between the third trimester of gestation and 2 years of life. Nutrition during these critical windows of rapid brain development might be essential for later cognitive functioning and behaviour. In the last few years, trends on protein recommendations during infancy and childhood have tended to be lower than that in the past. It remains to be demonstrated that lower protein intakes among healthy infants, a part of being able to reduce obesity risk, is safe in terms of mental performance achievement. Secondary analyses of the EU CHOP, a clinical trial in which infants from five European countries were randomised to be fed a higher or a lower protein content formula during the 1st year of life. Children were assessed at the age of 8 years with a neuropsychological battery of tests that included assessments of memory (visual and verbal), attention (visual, selective, focused and sustained), visual-perceptual integration, processing speed, visual-motor coordination, verbal fluency and comprehension, impulsivity/inhibition, flexibility/shifting, working memory, reasoning, visual-spatial skills and decision making. Internalising, externalising and total behaviour problems were assessed using the Child Behaviour Checklist 4-18. Adjusted analyses considering factors that could influence neurodevelopment, such as parental education level, maternal smoking, child's gestational age at birth and head circumference, showed no differences between feeding groups in any of the assessed neuropsychological domains and behaviour. In summary, herewith we report on the safety of lower protein content in infant formulae (closer to the content of human milk) according to long-term mental performance.

Bronchopulmonary dysplasia: an enduring challenge.

1. Yvonne E. Vaucher, MD, MPH* 1. *Clinical Professor of Pediatrics, Division of Neonatology, University of California, San Diego, Calif. After completing this article, readers should be able to: 1. Describe the most common cause of chronic lung disease during infancy. 2. Explain the importance of a history of bronchopulmonary dysplasia throughout childhood. 3. Identify infants at high risk for developing bronchopulmonary dysplasia. 4. List the adverse effects associated with postnatal corticosteroids. Despite clinical advances in antepartum, intrapartum, and neonatal care, bronchopulmonary dysplasia (BPD) continues to challenge infants who have been in neonatal intensive care units and their caretakers. BPD is the most common cause of chronic respiratory disease during infancy and remains a major cause of long-term medical, pulmonary, and neurodevelopmental morbidity, increasing the cost of health care and the utilization of medical and educational resources throughout childhood. BPD is a clinical diagnosis, defined by oxygen dependence for a specific period of time after birth and accompanied by characteristic radiographic findings that correspond to anatomic abnormalities. Thus far, a precise physiologic definition of BPD is lacking. As the clinical presentation has evolved over the past 30 years, so has the definition. As originally described by Northway in the 1960s, the diagnosis of classic BPD was based on progressive radiographic changes in preterm infants who were treated for severe respiratory distress syndrome (RDS) immediately after birth and had prolonged ventilator and oxygen dependence. This form of BPD occurred in larger, relatively mature preterm infants, who required treatment with high-pressure mechanical ventilation and high concentrations of oxygen. Although the acute respiratory disease initially improved in these infants, oxygen requirements increased 7 to 10 days after birth and persisted for at least 28 days. The definition of BPD subsequently was modified by Bancalari to include preterm infants who had less severe RDS that initially required short-term mechanical ventilation, but who also developed persistent respiratory symptoms and an oxygen requirement for at least 28 days after birth …

A three‐phase psychoacoustic assessment of learning disabled subjects

A three‐phase assessment paradigm was implemented to evaluate areas of auditory and visual perceptual integration and processing by a heterogeneous group of 35 learning disabled subjects ranging in age from 4 to 37 years. Phase I involved testing peripheral auditory acuity, phase II tested central auditory processing, and phase III evaluated cognitive integration of auditory and visual sensory information. Subtest analysis was performed to identify the test material most sensitive to identification of perceptual impairment. Several diagnostic profiles emerged from the test data, and will be discussed in regard to relevance in selecting the assessment battery most appropriate for testing auditory and visual sensory perception of the learning disabled.