Decoupling of the Occipitotemporal Cortex and the Brain's Default-Mode Network in Dyslexia and a Role for the Cingulate Cortex in Good Readers: A Brain Imaging Study of Brazilian Children

Decoupling of the Occipitotemporal Cortex and the Brain's Default-Mode Network in Dyslexia and a Role for the Cingulate Cortex in Good Readers: A Brain Imaging Study of Brazilian Children

The goal of the present study was to investigate intrinsic and reading-related brain function associated with dyslexia and typical readers in monolingual Brazilian children. Two fMRI studies were carried out: a resting-state and a word-reading study. The results show (a) underconnectivity between th...

Full description

Saved in:
Bibliographic Details
Published in:Developmental neuropsychology Vol. 44; no. 1; pp. 146 - 157
Main Authors: Buchweitz, Augusto, Costa, Adriana Corrêa, Toazza, Rudineia, de Moraes, Ana Bassôa, Cara, Valentina Metsavaht, Esper, Nathália Bianchini, Aguzzoli, Cristiano, Gregolim, Bruna, Dresch, Luiz Fernando, Soldatelli, Matheus Dorigatti, da Costa, Jaderson Costa, Portuguez, Mirna Wetters, Franco, Alexandre Rosa
Format: Journal Article
Language:English
Published: England Routledge 02-01-2019
Psychology Press
Subjects:
Adolescent
Brain
Brain - diagnostic imaging
Brain mapping
Brain Mapping - methods
Cerebral Cortex - physiopathology
Child
Children
Cortex (cingulate)
Dyslexia
Dyslexia - physiopathology
Female
Functional magnetic resonance imaging
Gyrus Cinguli - physiopathology
Humans
Magnetic Resonance Imaging - methods
Male
Neural networks
Neuroimaging
Neuroimaging - methods
Population studies
Reading
Visual cortex
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The goal of the present study was to investigate intrinsic and reading-related brain function associated with dyslexia and typical readers in monolingual Brazilian children. Two fMRI studies were carried out: a resting-state and a word-reading study. The results show (a) underconnectivity between the occipitotemporal region (visual word form area) and the brain's default-mode network in dyslexic readers and (b) more activation of the anterior cingulate cortex for typical readers relative to dyslexic readers. The findings provide evidence for brain connectivity and function differences in an underrepresented population in fMRI studies of dyslexia; the results suggest atypical intrinsic function, and differences in directed attention processes in dyslexia.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:8756-5641
1532-6942
DOI:10.1080/87565641.2017.1292516