Structural properties of the ventral reading pathways are associated with morphological processing in adult English readers

Maya Yablonski, Kathleen Rastle, J.s.h. Taylor, Michal Ben-shachar

Research output: Contribution to journalArticle

Abstract

Morphological processing, the ability to extract information about word structure, is an essential component of reading. Functional MRI studies have identified several cortical regions involved in morphological processing, but the white matter pathways that support this skill remain unknown. Here, we examine the relationship between behavioral measures of morphological processing and microstructural properties of white matter pathways. Using diffusion MRI (dMRI), we identified the major ventral and dorsal reading pathways in a group of 45 adult English readers. The same participants completed a behavioral battery that included a morphological task and measures of phonological and orthographic processing. We found significant correlations between morphological processing skill and microstructural properties of the ventral, but not dorsal, pathways. These correlations were detected primarily in the left hemisphere, and remained significant after controlling for phonological or orthographic measures, suggesting some level of cognitive specificity. Morphological processing of written words thus appears to rely on ventral pathways, primarily in the left hemisphere. This finding supports the contribution of morphological processing to lexical access and comprehension of complex English words.
LanguageEnglish
Pages268-285
Number of pages18
JournalCortex
Volume116
Early online date3 Jul 2018
DOIs
Publication statusPublished - 1 Jul 2019

Fingerprint

Reading
Word Processing
Diffusion Magnetic Resonance Imaging
Aptitude
Magnetic Resonance Imaging
White Matter

Bibliographical note

© 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

Keywords

  • Derivational morphology
  • Diffusion imaging
  • DTI
  • Morphological processing
  • Reading
  • White matter tractography

Cite this

@article{a46d1b95b254490ea81a8ee8c4231f74,
title = "Structural properties of the ventral reading pathways are associated with morphological processing in adult English readers",
abstract = "Morphological processing, the ability to extract information about word structure, is an essential component of reading. Functional MRI studies have identified several cortical regions involved in morphological processing, but the white matter pathways that support this skill remain unknown. Here, we examine the relationship between behavioral measures of morphological processing and microstructural properties of white matter pathways. Using diffusion MRI (dMRI), we identified the major ventral and dorsal reading pathways in a group of 45 adult English readers. The same participants completed a behavioral battery that included a morphological task and measures of phonological and orthographic processing. We found significant correlations between morphological processing skill and microstructural properties of the ventral, but not dorsal, pathways. These correlations were detected primarily in the left hemisphere, and remained significant after controlling for phonological or orthographic measures, suggesting some level of cognitive specificity. Morphological processing of written words thus appears to rely on ventral pathways, primarily in the left hemisphere. This finding supports the contribution of morphological processing to lexical access and comprehension of complex English words.",
keywords = "Derivational morphology, Diffusion imaging, DTI, Morphological processing, Reading, White matter tractography",
author = "Maya Yablonski and Kathleen Rastle and J.s.h. Taylor and Michal Ben-shachar",
note = "{\circledC} 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).",
year = "2019",
month = "7",
day = "1",
doi = "10.1016/j.cortex.2018.06.011",
language = "English",
volume = "116",
pages = "268--285",
journal = "Cortex",
issn = "0010-9452",
publisher = "Elsevier",

}

Structural properties of the ventral reading pathways are associated with morphological processing in adult English readers. / Yablonski, Maya; Rastle, Kathleen; Taylor, J.s.h.; Ben-shachar, Michal.

In: Cortex, Vol. 116, 01.07.2019, p. 268-285.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Structural properties of the ventral reading pathways are associated with morphological processing in adult English readers

AU - Yablonski, Maya

AU - Rastle, Kathleen

AU - Taylor, J.s.h.

AU - Ben-shachar, Michal

N1 - © 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

PY - 2019/7/1

Y1 - 2019/7/1

N2 - Morphological processing, the ability to extract information about word structure, is an essential component of reading. Functional MRI studies have identified several cortical regions involved in morphological processing, but the white matter pathways that support this skill remain unknown. Here, we examine the relationship between behavioral measures of morphological processing and microstructural properties of white matter pathways. Using diffusion MRI (dMRI), we identified the major ventral and dorsal reading pathways in a group of 45 adult English readers. The same participants completed a behavioral battery that included a morphological task and measures of phonological and orthographic processing. We found significant correlations between morphological processing skill and microstructural properties of the ventral, but not dorsal, pathways. These correlations were detected primarily in the left hemisphere, and remained significant after controlling for phonological or orthographic measures, suggesting some level of cognitive specificity. Morphological processing of written words thus appears to rely on ventral pathways, primarily in the left hemisphere. This finding supports the contribution of morphological processing to lexical access and comprehension of complex English words.

AB - Morphological processing, the ability to extract information about word structure, is an essential component of reading. Functional MRI studies have identified several cortical regions involved in morphological processing, but the white matter pathways that support this skill remain unknown. Here, we examine the relationship between behavioral measures of morphological processing and microstructural properties of white matter pathways. Using diffusion MRI (dMRI), we identified the major ventral and dorsal reading pathways in a group of 45 adult English readers. The same participants completed a behavioral battery that included a morphological task and measures of phonological and orthographic processing. We found significant correlations between morphological processing skill and microstructural properties of the ventral, but not dorsal, pathways. These correlations were detected primarily in the left hemisphere, and remained significant after controlling for phonological or orthographic measures, suggesting some level of cognitive specificity. Morphological processing of written words thus appears to rely on ventral pathways, primarily in the left hemisphere. This finding supports the contribution of morphological processing to lexical access and comprehension of complex English words.

KW - Derivational morphology

KW - Diffusion imaging

KW - DTI

KW - Morphological processing

KW - Reading

KW - White matter tractography

UR - https://www.sciencedirect.com/science/article/pii/S0010945218301977?_rdoc=1&_fmt=high&_origin=gateway&_docanchor=&md5=b8429449ccfc9c30159a5f9aeaa92ffb

UR - http://www.scopus.com/inward/record.url?scp=85050082956&partnerID=8YFLogxK

U2 - 10.1016/j.cortex.2018.06.011

DO - 10.1016/j.cortex.2018.06.011

M3 - Article

VL - 116

SP - 268

EP - 285

JO - Cortex

T2 - Cortex

JF - Cortex

SN - 0010-9452

ER -