48 lines
No EOL
2.2 KiB
Markdown
48 lines
No EOL
2.2 KiB
Markdown
---
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title: 'The effect of acquisition resolution on orientation decoding from V1: comparison
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of 3T and 7T'
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persons:
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- ayan-sengupta
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- michael-hanke
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- orcid:0000-0001-5840-5658
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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/7de16586-c19a-4334-b84c-33da571debf4
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pid: xyzrins:publications/7de16586-c19a-4334-b84c-33da571debf4
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doi: 10.1101/305417
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date: '2018-04-22'
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title: 'The effect of acquisition resolution on orientation decoding from V1: comparison
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of 3T and 7T'
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description: Previously published results indicate that the accuracy of decoding visual
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orientation from 7 Tesla fMRI data of V1 peaks at spatial acquisition resolutions
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that are routinely accessible with more conventional 3 Tesla scanners. This study
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directly compares the decoding performance between a 3 Tesla and a 7 Tesla dataset
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that were acquired using the same stimulation paradigm by applying an identical
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analysis procedure. The results indicate that decoding models built on 3 Tesla data
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are comparatively impaired. Moreover, we found no evidence for a strong coupling
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of BOLD signal change magnitude or temporal signal to noise ratio (tSNR) with decoding
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performance. Direct enhancement of tSNR via multiband fMRI acquisition at the same
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resolution did not translate into improved decoding performance. Additional voxel
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selection can boost 3 Tesla decoding performance to the 7 Tesla level only at a
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3 mm acquisition resolution. In both datasets the BOLD signal available for orientation
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decoding is spatially broadband, but, consistent with the size of the BOLD point-spread-function,
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decoding models at 3 Tesla utilize spatially coarser image components.
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kind: bibo:AcademicArticle
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author:
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- pid: xyzrins:persons/ayan-sengupta
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given_name: Ayan
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family_name: Sengupta
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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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- pid: orcid:0000-0001-5840-5658
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given_name: Stefan
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family_name: Pollmann
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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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--- |