Comprehending text versus reading words in young readers with varying reading ability

distinct patterns of functional connectivity from common processing hubs

Katherine S. Aboud, Stephen K. Bailey, Stephen A. Petrill, Laurie E. Cutting

Research output: Contribution to journalArticle

Abstract

Skilled reading depends on recognizing words efficiently in isolation (word-level processing; WL) and extracting meaning from text (discourse-level processing; DL); deficiencies in either result in poor reading. FMRI has revealed consistent overlapping networks in word and passage reading, as well as unique regions for DL processing; however, less is known about how WL and DL processes interact. Here we examined functional connectivity from seed regions derived from where BOLD signal overlapped during word and passage reading in 38 adolescents ranging in reading ability, hypothesizing that even though certain regions support word- and higher-level language, connectivity patterns from overlapping regions would be task modulated. Results indeed revealed that the left-lateralized semantic and working memory (WM) seed regions showed task-dependent functional connectivity patterns: during DL processes, semantic and WM nodes all correlated with the left angular gyrus, a region implicated in semantic memory/coherence building. In contrast, during WL, these nodes coordinated with a traditional WL area (left occipitotemporal region). In addition, these WL and DL findings were modulated by decoding and comprehension abilities, respectively, with poorer abilities correlating with decreased connectivity. Findings indicate that key regions may uniquely contribute to multiple levels of reading; we speculate that these connectivity patterns may be especially salient for reading outcomes and intervention response.

Original languageEnglish (US)
Pages (from-to)632-656
Number of pages25
JournalDevelopmental Science
Volume19
Issue number4
DOIs
StatePublished - Jul 1 2016
Externally publishedYes

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Aptitude
Reading
Semantics
Short-Term Memory
Seeds
Word Processing
Parietal Lobe
Language

ASJC Scopus subject areas

  • Developmental and Educational Psychology
  • Cognitive Neuroscience

Cite this

Comprehending text versus reading words in young readers with varying reading ability : distinct patterns of functional connectivity from common processing hubs. / Aboud, Katherine S.; Bailey, Stephen K.; Petrill, Stephen A.; Cutting, Laurie E.

In: Developmental Science, Vol. 19, No. 4, 01.07.2016, p. 632-656.

Research output: Contribution to journalArticle

Aboud, Katherine S. ; Bailey, Stephen K. ; Petrill, Stephen A. ; Cutting, Laurie E. / Comprehending text versus reading words in young readers with varying reading ability : distinct patterns of functional connectivity from common processing hubs. In: Developmental Science. 2016 ; Vol. 19, No. 4. pp. 632-656.
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