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Picture naming in young children: a developmental study on interhemispheric collaboration.

Frédérique Liégeois1, Scania de Schonen

  • 1Developmental Cognitive Neuroscience Unit, Institute of Child Health, The Wolfson Centre, London, United Kingdom.

Brain and Cognition
|May 25, 2002
PubMed
Summary
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Early childhood development shows differing visual field naming abilities between brain hemispheres. By ages 5-6, children shift attention, improving left visual field naming and overall performance.

Area of Science:

  • Developmental psychology
  • Neuroscience
  • Cognitive science

Background:

  • Interhemispheric collaboration and visual attention are crucial for cognitive development.
  • Understanding their developmental trajectory in early childhood is essential for identifying typical and atypical development.

Purpose of the Study:

  • To investigate the development of interhemispheric collaboration and visual attention in basic lexical tasks in young children.
  • To determine how naming accuracy and visual field preference change from ages 2 to 6 years.

Main Methods:

  • Children aged 2-6 years performed a picture-naming task with stimuli presented in unilateral or bilateral visual fields.
  • Accuracy and order of report were recorded for stimuli presented in the left and right visual fields.

Related Experiment Videos

Main Results:

  • Children aged 2-4 years showed better accuracy for right visual field (RVF) pictures, while 5-6 year olds performed equally well for both visual fields.
  • Younger children (2-4 years) preferentially named RVF pictures first, whereas older children (5-6 years) named left visual field (LVF) pictures first.
  • No difference in naming accuracy was observed in the unilateral condition, suggesting functional interhemispheric pathways.

Conclusions:

  • Cerebral hemispheres develop naming competencies unevenly in early childhood.
  • A developmental shift in visual attention occurs around ages 5-6 years, impacting lexical task performance.
  • Interhemispheric pathways are functional in early childhood, facilitating information processing between hemispheres.