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Related Experiment Video

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A tightly controlled fMRI dataset for receptive field mapping in human visual cortex.

Joram Soch1,2,3, Kai Görgen1,2,4, Jakob Heinzle2,5

  • 1Berlin Center for Advanced Neuroimaging, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Sauerbruchweg 4, 10117 Berlin, Germany.

Data in Brief
|March 20, 2023
PubMed
Summary

This study used functional magnetic resonance imaging (fMRI) to map human visual cortex responses to a flickering checkerboard stimulus. The dataset enables detailed analysis of receptive field properties across visual areas.

Keywords:
Angular directionContinuous stimulationEccentricityFlickering checkerboardFunctional MRIMagnetic resonance imagingRetinotopic mappingVisual perception

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Area of Science:

  • Neuroscience
  • Visual Perception
  • Brain Imaging

Background:

  • Understanding the human visual system's processing of visual stimuli is crucial.
  • Previous research has utilized functional magnetic resonance imaging (fMRI) to explore visual cortex activity.

Purpose of the Study:

  • To present a dataset for mapping receptive fields and their properties in the human visual cortex.
  • To provide detailed fMRI data from a visual stimulation experiment for public access.

Main Methods:

  • Four healthy subjects viewed a dynamic checkerboard stimulus with varying contrast levels.
  • Brain activity was measured using 3-Tesla functional magnetic resonance imaging (fMRI).
  • Data acquisition involved 220 echo-planar images per run with specific parameters (TR=1.5s, voxel size 3x3x3mm).

Main Results:

  • The experiment generated a comprehensive dataset of brain activity correlated with visual stimulation.
  • Region of interest (ROI) maps for visual areas V1-V4 were included.
  • The dataset allows for precise mapping of receptive fields across multiple visual processing stages.

Conclusions:

  • The publicly available dataset facilitates advanced research into the human visual cortex.
  • This resource enables detailed investigation of receptive field characteristics and their organization.
  • The data supports studies on the functional organization of visual areas V1-V4.