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Topographical Estimation of Visual Population Receptive Fields by fMRI
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JoVE Journal Behavior
Topographical Estimation of Visual Population Receptive Fields by fMRI

Topographical Estimation of Visual Population Receptive Fields by fMRI

DOI:
10.3791/51811-v

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06:02 min

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February 03, 2015

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, , ,
1Department of Neuroscience and Neurology,Baylor College of Medicine, 2Max Planck Institute for Biological Cybernetics, 3Bernstein Center for Computational Neuroscience

Chapters

  • 00:05Title
  • 00:58Data Acquisition
  • 02:18Estimation of pRF Topography and Parametric Modeling
  • 04:32Results: pRF Topography, Retinotopic Maps and pRF Size
  • 05:38Conclusion

Summary

Automatic Translation

Automatic Translation

It is important to obtain unbiased estimates of visual population receptive fields (pRFs) by functional magnetic resonance imaging. We use mild regularization constraints to estimate pRF topography without a-priori assumptions about pRF shape, allowing us to choose specific pRF models post-hoc. This is particularly advantageous in subjects with visual-pathway lesions.

Tags

Keywords: Topographical EstimationVisual Population Receptive FieldsFMRIRetinotopic OrganizationVoxel-based Population Receptive FieldsLinear ModelBOLD SignalHemodynamic Response FunctionRidge RegressionPRF TopographyPRF ParametersVisual System Disorders

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