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Distinct individual differences in default mode network connectivity relate to off-task thought and text memory during reading
Often, as we read, we find ourselves thinking about something other than the text; this tendency to mind-wander is linked to poor comprehension and reduced subsequent memory for texts. Contemporary accounts argue that periods of off-task thought are related to the tendency for attention to be decoup...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6838089/ https://www.ncbi.nlm.nih.gov/pubmed/31700143 http://dx.doi.org/10.1038/s41598-019-52674-9 |
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author | Zhang, Meichao Savill, Nicola Margulies, Daniel S. Smallwood, Jonathan Jefferies, Elizabeth |
author_facet | Zhang, Meichao Savill, Nicola Margulies, Daniel S. Smallwood, Jonathan Jefferies, Elizabeth |
author_sort | Zhang, Meichao |
collection | PubMed |
description | Often, as we read, we find ourselves thinking about something other than the text; this tendency to mind-wander is linked to poor comprehension and reduced subsequent memory for texts. Contemporary accounts argue that periods of off-task thought are related to the tendency for attention to be decoupled from external input. We used fMRI to understand the neural processes that underpin this phenomenon. First, we found that individuals with poorer text-based memory tend to show reduced recruitment of left middle temporal gyrus in response to orthographic input, within a region located at the intersection of default mode, dorsal attention and frontoparietal networks. Voxels within these networks were taken as seeds in a subsequent resting-state study. The default mode network region (i) had greater connectivity with medial prefrontal cortex, falling within the same network, for individuals with better text-based memory, and (ii) was more decoupled from medial visual regions in participants who mind-wandered more frequently. These findings suggest that stronger intrinsic connectivity within the default mode network is linked to better text processing, while reductions in default mode network coupling to the visual system may underpin individual variation in the tendency for our attention to become disengaged from what we are reading. |
format | Online Article Text |
id | pubmed-6838089 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-68380892019-11-14 Distinct individual differences in default mode network connectivity relate to off-task thought and text memory during reading Zhang, Meichao Savill, Nicola Margulies, Daniel S. Smallwood, Jonathan Jefferies, Elizabeth Sci Rep Article Often, as we read, we find ourselves thinking about something other than the text; this tendency to mind-wander is linked to poor comprehension and reduced subsequent memory for texts. Contemporary accounts argue that periods of off-task thought are related to the tendency for attention to be decoupled from external input. We used fMRI to understand the neural processes that underpin this phenomenon. First, we found that individuals with poorer text-based memory tend to show reduced recruitment of left middle temporal gyrus in response to orthographic input, within a region located at the intersection of default mode, dorsal attention and frontoparietal networks. Voxels within these networks were taken as seeds in a subsequent resting-state study. The default mode network region (i) had greater connectivity with medial prefrontal cortex, falling within the same network, for individuals with better text-based memory, and (ii) was more decoupled from medial visual regions in participants who mind-wandered more frequently. These findings suggest that stronger intrinsic connectivity within the default mode network is linked to better text processing, while reductions in default mode network coupling to the visual system may underpin individual variation in the tendency for our attention to become disengaged from what we are reading. Nature Publishing Group UK 2019-11-07 /pmc/articles/PMC6838089/ /pubmed/31700143 http://dx.doi.org/10.1038/s41598-019-52674-9 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Zhang, Meichao Savill, Nicola Margulies, Daniel S. Smallwood, Jonathan Jefferies, Elizabeth Distinct individual differences in default mode network connectivity relate to off-task thought and text memory during reading |
title | Distinct individual differences in default mode network connectivity relate to off-task thought and text memory during reading |
title_full | Distinct individual differences in default mode network connectivity relate to off-task thought and text memory during reading |
title_fullStr | Distinct individual differences in default mode network connectivity relate to off-task thought and text memory during reading |
title_full_unstemmed | Distinct individual differences in default mode network connectivity relate to off-task thought and text memory during reading |
title_short | Distinct individual differences in default mode network connectivity relate to off-task thought and text memory during reading |
title_sort | distinct individual differences in default mode network connectivity relate to off-task thought and text memory during reading |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6838089/ https://www.ncbi.nlm.nih.gov/pubmed/31700143 http://dx.doi.org/10.1038/s41598-019-52674-9 |
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