Search

Your search keyword '"Burden, Matthew J."' showing total 25 results
Start Over Author "Burden, Matthew J."
25 results on '"Burden, Matthew J."'

4. Preschool-aged children with iron deficiency anemia show altered affect and behavior

Author

Lozoff, Betsy, Corapci, Feyza, Burden, Matthew J., Kaciroti, Niko, Angulo-Barroso, Rosa, Sazawal, Sunil, and Black, Maureen

Subjects
Iron deficiency anemia -- Health aspects, Preschool children -- Food and nutrition, Preschool children -- Health aspects, Preschool children -- Behavior, Food/cooking/nutrition
Abstract

This study compared social looking and response to novelty in preschool-aged children (47-68 mo) with or without iron deficiency anemia (IDA). Iron status of the participants from a low-income community in New Delhi, India, was based on venous hemoglobin, mean corpuscular volume, and red cell distribution width. Children's social looking toward adults, affect, and wary or hesitant behavior in response to novelty were assessed in a semistructured paradigm during an inhome play observation. Affect and behavior were compared as a function of iron status: IDA (n = 74) vs. nonanemic (n = 164). Compared with nonanemic preschoolers, preschoolers with IDA displayed less social looking toward their mothers, moved close to their mothers more quickly, and were slower to display positive affect and touch novel toys for the first time. These results indicate that IDA in the preschool period has affective and behavioral effects similar to those reported for IDA in infancy.

Published
2007

11. The effects of maternal binge drinking during pregnancy on neural correlates of response inhibition and memory in childhood

Author

Burden, Matthew J., Westerlund, Alissa, Muckle, Gina, Dodge, Neil, Dewailly, Eric, Nelson, Charles A., Jacobson, Sandra W., and Jacobson, Joseph L.

Subjects
Male, Ethanol, Arctic Regions, Electroencephalography, Recognition, Psychology, Article, Inhibition, Psychological, Inuit, Memory, Pregnancy, Prenatal Exposure Delayed Effects, Reaction Time, Humans, Attention, Female, Longitudinal Studies, Child, Evoked Potentials
Abstract

Although an extensive literature has documented a broad range of cognitive performance deficits in children with prenatal alcohol exposure, little is known about how the neurophysiological processes underlying these deficits may be affected. Event-related potentials (ERPs), which reflect task-specific changes in brain electrical activity, provide a method for examining multiple constituents of cognitive processing at the neural level.We recorded ERPs in 217 children from Inuit communities in Arctic Quebec (M age = 11.3 years) during 2 different tasks-Go/No-go response inhibition and continuous recognition memory. Children were classified as either alcohol-exposed (ALC) or controls (CON) depending on whether the mother reported binge drinking during pregnancy.Both groups performed comparably in terms of accuracy and reaction time on the tasks, and both tasks elicited the expected effects on ERPs when responses were compared across conditions. However, the ALC group showed slower P2 latencies on Go/No-go, suggesting an altered neurophysiological response associated with initial visual processing of the stimuli. On the memory task, the ALC group showed reduced FN400 amplitude to New items, known as the familiarity effect, and reduced amplitude for the late positive component, possibly reflecting impairment in memory retrieval.These findings show that, even in tasks in which alcohol-exposed children exhibit behavioral performance that is comparable to controls, fetal alcohol exposure is associated with altered neurophysiological processing of response inhibition and recognition memory. The data suggest that fetal alcohol exposure is associated with reduced efficiency in the initial extracting of the meaning of a stimulus, reduced allocation of attention to the task, and poorer conscious, explicit recognition memory processing.

Published
2010

Catalog

Books, media, physical & digital resources
See catalog results