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Studying Brain Function in Children Using Magnetoencephalography

Studying Brain Function in Children Using Magnetoencephalography

Published on: April 8, 2019

Learning orthography in adulthood: a magnetoencephalographic study.

A Castro-Caldas¹, M V Nunes, F Maestu

¹Neurological Clinical Research Unit, Lisbon, Portugal; Institute of Health Sciences of Portuguese Catholic University, Portugal. acastrocaldas@ics.ucp.pt

Journal of Neuropsychology

|April 3, 2009

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Learning to read as an adult engages different brain networks compared to learning in childhood. Late literates show distinct brain activation patterns during word reading, suggesting diverse neural pathways for the same cognitive task.

Area of Science:

Neuroscience
Cognitive Science
Education

Background:

Previous research indicated differences between literate and illiterate adults in cognitive tasks and brain activity (PET, fMRI).
Adults who learn to read later in life may utilize different neural mechanisms than those who learn during childhood.

Purpose of the Study:

To investigate the neural differences in brain activity during word reading between adults who learned to read late and individuals who learned at a typical age.
To explore if the brain utilizes distinct functional networks for reading acquisition in adulthood versus childhood.

Main Methods:

Magnetoencephalography (MEG) was employed to record brain activity.
Subjects included adults who learned to read and write in adulthood (late literates) and control subjects who learned at a typical age.

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Main Results:

While reading performance was comparable between groups, brain activity patterns differed significantly.
Late literates exhibited more late sources in right temporo-parietal areas.
Control subjects showed more late sources in the left inferior frontal cortex.

Conclusions:

Acquiring literacy in adulthood involves different brain structures compared to early-life learning.
The findings suggest that the same cognitive task, such as reading, can be accomplished through diverse functional brain networks.
This highlights the brain's plasticity and its ability to adapt neural resources for learning new skills at different life stages.