49 lines
No EOL
2.3 KiB
Markdown
49 lines
No EOL
2.3 KiB
Markdown
---
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title: Task relevance modulates the representation of features and feature dimensions in
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the target template
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persons:
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- orcid:0000-0001-5840-5658
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- reshanne-reeder
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- michael-hanke
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topics:
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- neuroimaging
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- predictive-data-analysis
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params:
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graphRootNodePID: xyzrins:publications/4611b86b-e0dc-40f3-9eaa-ede2c047e7a1
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pid: xyzrins:publications/4611b86b-e0dc-40f3-9eaa-ede2c047e7a1
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doi: 10.1038/s41598-017-04123-8
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date: '2017-07-03'
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title: Task relevance modulates the representation of features and feature dimensions
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in the target template
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description: Little is known about the cortical regions involved in representing task-related
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content in preparation for visual task performance. Here we used representational
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similarity analysis (RSA) to investigate the BOLD response pattern similarity between
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task relevant and task irrelevant feature dimensions during conjunction viewing
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and target template maintenance prior to visual search. Subjects were cued to search
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for a spatial frequency (SF) or orientation of a Gabor grating and we measured BOLD
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signal during cue and delay periods before the onset of a search display. RSA of
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delay period activity revealed that widespread regions in frontal, posterior parietal,
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and occipitotemporal cortices showed general representational differences between
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task relevant and task irrelevant dimensions (e.g., orientation vs. SF). In contrast,
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RSA of cue period activity revealed sensory-related representational differences
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between cue images (regardless of task) at the occipital pole and additionally in
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the frontal pole. Our data show that task and sensory information are represented
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differently during viewing and during target template maintenance, and that task
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relevance modulates the representation of visual information across the cortex.
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kind: bibo:AcademicArticle
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author:
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- pid: orcid:0000-0001-5840-5658
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given_name: Stefan
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family_name: Pollmann
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- pid: xyzrins:persons/reshanne-reeder
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given_name: Reshanne
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family_name: Reeder
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- pid: xyzrins:persons/michael-hanke
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given_name: Michael
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family_name: Hanke
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topic:
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- pid: xyzrins:topics/neuroimaging
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display_label: Neuroimaging
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- pid: xyzrins:topics/predictive-data-analysis
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display_label: Predictive data analysis
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--- |