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Neural basis of somatosensory target detection independent of uncertainty, relevance, and reports

Research on somatosensory awareness has yielded highly diverse findings with putative neural correlates ranging from activity within somatosensory cortex to activation of widely distributed frontoparietal networks. Divergent results from previous studies may reside in cognitive processes that often...

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Detalles Bibliográficos
Autores principales: Schröder, Pia, Schmidt, Timo Torsten, Blankenburg, Felix
Formato: Online Artículo Texto
Lenguaje:English
Publicado: eLife Sciences Publications, Ltd 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6440741/
https://www.ncbi.nlm.nih.gov/pubmed/30924769
http://dx.doi.org/10.7554/eLife.43410
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author Schröder, Pia
Schmidt, Timo Torsten
Blankenburg, Felix
author_facet Schröder, Pia
Schmidt, Timo Torsten
Blankenburg, Felix
author_sort Schröder, Pia
collection PubMed
description Research on somatosensory awareness has yielded highly diverse findings with putative neural correlates ranging from activity within somatosensory cortex to activation of widely distributed frontoparietal networks. Divergent results from previous studies may reside in cognitive processes that often coincide with stimulus awareness in experimental settings. To scrutinise the specific relevance of regions implied in the target detection network, we used functional magnetic resonance imaging (n = 27) on a novel somatosensory detection task that explicitly controls for stimulus uncertainty, behavioural relevance, overt reports, and motor responses. Using Bayesian Model Selection, we show that responses reflecting target detection are restricted to secondary somatosensory cortex, whereas activity in insular, cingulate, and motor regions is best explained in terms of stimulus uncertainty and overt reports. Our results emphasise the role of sensory-specific cortex for the emergence of perceptual awareness and dissect the contribution of the frontoparietal network to classical detection tasks.
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spelling pubmed-64407412019-04-01 Neural basis of somatosensory target detection independent of uncertainty, relevance, and reports Schröder, Pia Schmidt, Timo Torsten Blankenburg, Felix eLife Neuroscience Research on somatosensory awareness has yielded highly diverse findings with putative neural correlates ranging from activity within somatosensory cortex to activation of widely distributed frontoparietal networks. Divergent results from previous studies may reside in cognitive processes that often coincide with stimulus awareness in experimental settings. To scrutinise the specific relevance of regions implied in the target detection network, we used functional magnetic resonance imaging (n = 27) on a novel somatosensory detection task that explicitly controls for stimulus uncertainty, behavioural relevance, overt reports, and motor responses. Using Bayesian Model Selection, we show that responses reflecting target detection are restricted to secondary somatosensory cortex, whereas activity in insular, cingulate, and motor regions is best explained in terms of stimulus uncertainty and overt reports. Our results emphasise the role of sensory-specific cortex for the emergence of perceptual awareness and dissect the contribution of the frontoparietal network to classical detection tasks. eLife Sciences Publications, Ltd 2019-03-29 /pmc/articles/PMC6440741/ /pubmed/30924769 http://dx.doi.org/10.7554/eLife.43410 Text en © 2019, Schröder et al http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited.
spellingShingle Neuroscience
Schröder, Pia
Schmidt, Timo Torsten
Blankenburg, Felix
Neural basis of somatosensory target detection independent of uncertainty, relevance, and reports
title Neural basis of somatosensory target detection independent of uncertainty, relevance, and reports
title_full Neural basis of somatosensory target detection independent of uncertainty, relevance, and reports
title_fullStr Neural basis of somatosensory target detection independent of uncertainty, relevance, and reports
title_full_unstemmed Neural basis of somatosensory target detection independent of uncertainty, relevance, and reports
title_short Neural basis of somatosensory target detection independent of uncertainty, relevance, and reports
title_sort neural basis of somatosensory target detection independent of uncertainty, relevance, and reports
topic Neuroscience
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6440741/
https://www.ncbi.nlm.nih.gov/pubmed/30924769
http://dx.doi.org/10.7554/eLife.43410
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