Representing Representation: Integration between the Temporal Lobe and the Posterior Cingulate Influences the Content and Form of Spontaneous Thought
When not engaged in the moment, we often spontaneously represent people, places and events that are not present in the environment. Although this capacity has been linked to the default mode network (DMN), it remains unclear how interactions between the nodes of this network give rise to particular...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Public Library of Science
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4821638/ https://www.ncbi.nlm.nih.gov/pubmed/27045292 http://dx.doi.org/10.1371/journal.pone.0152272 |
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author | Smallwood, Jonathan Karapanagiotidis, Theodoros Ruby, Florence Medea, Barbara de Caso, Irene Konishi, Mahiko Wang, Hao-Ting Hallam, Glyn Margulies, Daniel S. Jefferies, Elizabeth |
author_facet | Smallwood, Jonathan Karapanagiotidis, Theodoros Ruby, Florence Medea, Barbara de Caso, Irene Konishi, Mahiko Wang, Hao-Ting Hallam, Glyn Margulies, Daniel S. Jefferies, Elizabeth |
author_sort | Smallwood, Jonathan |
collection | PubMed |
description | When not engaged in the moment, we often spontaneously represent people, places and events that are not present in the environment. Although this capacity has been linked to the default mode network (DMN), it remains unclear how interactions between the nodes of this network give rise to particular mental experiences during spontaneous thought. One hypothesis is that the core of the DMN integrates information from medial and lateral temporal lobe memory systems, which represent different aspects of knowledge. Individual differences in the connectivity between temporal lobe regions and the default mode network core would then predict differences in the content and form of people’s spontaneous thoughts. This study tested this hypothesis by examining the relationship between seed-based functional connectivity and the contents of spontaneous thought recorded in a laboratory study several days later. Variations in connectivity from both medial and lateral temporal lobe regions was associated with different patterns of spontaneous thought and these effects converged on an overlapping region in the posterior cingulate cortex. We propose that the posterior core of the DMN acts as a representational hub that integrates information represented in medial and lateral temporal lobe and this process is important in determining the content and form of spontaneous thought. |
format | Online Article Text |
id | pubmed-4821638 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-48216382016-04-22 Representing Representation: Integration between the Temporal Lobe and the Posterior Cingulate Influences the Content and Form of Spontaneous Thought Smallwood, Jonathan Karapanagiotidis, Theodoros Ruby, Florence Medea, Barbara de Caso, Irene Konishi, Mahiko Wang, Hao-Ting Hallam, Glyn Margulies, Daniel S. Jefferies, Elizabeth PLoS One Research Article When not engaged in the moment, we often spontaneously represent people, places and events that are not present in the environment. Although this capacity has been linked to the default mode network (DMN), it remains unclear how interactions between the nodes of this network give rise to particular mental experiences during spontaneous thought. One hypothesis is that the core of the DMN integrates information from medial and lateral temporal lobe memory systems, which represent different aspects of knowledge. Individual differences in the connectivity between temporal lobe regions and the default mode network core would then predict differences in the content and form of people’s spontaneous thoughts. This study tested this hypothesis by examining the relationship between seed-based functional connectivity and the contents of spontaneous thought recorded in a laboratory study several days later. Variations in connectivity from both medial and lateral temporal lobe regions was associated with different patterns of spontaneous thought and these effects converged on an overlapping region in the posterior cingulate cortex. We propose that the posterior core of the DMN acts as a representational hub that integrates information represented in medial and lateral temporal lobe and this process is important in determining the content and form of spontaneous thought. Public Library of Science 2016-04-05 /pmc/articles/PMC4821638/ /pubmed/27045292 http://dx.doi.org/10.1371/journal.pone.0152272 Text en © 2016 Smallwood et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Smallwood, Jonathan Karapanagiotidis, Theodoros Ruby, Florence Medea, Barbara de Caso, Irene Konishi, Mahiko Wang, Hao-Ting Hallam, Glyn Margulies, Daniel S. Jefferies, Elizabeth Representing Representation: Integration between the Temporal Lobe and the Posterior Cingulate Influences the Content and Form of Spontaneous Thought |
title | Representing Representation: Integration between the Temporal Lobe and the Posterior Cingulate Influences the Content and Form of Spontaneous Thought |
title_full | Representing Representation: Integration between the Temporal Lobe and the Posterior Cingulate Influences the Content and Form of Spontaneous Thought |
title_fullStr | Representing Representation: Integration between the Temporal Lobe and the Posterior Cingulate Influences the Content and Form of Spontaneous Thought |
title_full_unstemmed | Representing Representation: Integration between the Temporal Lobe and the Posterior Cingulate Influences the Content and Form of Spontaneous Thought |
title_short | Representing Representation: Integration between the Temporal Lobe and the Posterior Cingulate Influences the Content and Form of Spontaneous Thought |
title_sort | representing representation: integration between the temporal lobe and the posterior cingulate influences the content and form of spontaneous thought |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4821638/ https://www.ncbi.nlm.nih.gov/pubmed/27045292 http://dx.doi.org/10.1371/journal.pone.0152272 |
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