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Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI
Published on: February 19, 2014
Setup and data analysis for functional magnetic resonance imaging of awake cat visual cortex
Manxiu Ma1, Chencan Qian, Yanxia Li
1State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
Neuroscience Bulletin
|June 15, 2013
Summary
Functional magnetic resonance imaging (fMRI) is now possible in untrained awake cats. This study developed methods to correct motion artifacts, enabling new research in feline neuroscience.
Area of Science:
- Neuroscience
- Medical Imaging
Background:
- Functional magnetic resonance imaging (fMRI) is a key tool in human cognitive neuroscience.
- fMRI has been adapted for awake monkey studies to map brain function and compare species differences.
- Existing methods require extensive training for head fixation and motion control.
Purpose of the Study:
- To adapt fMRI for untrained awake cats.
- To investigate visual cortex activation using a checkerboard stimulus.
- To develop motion correction techniques for feline fMRI.
Main Methods:
- Utilized a block-design paradigm with a flickering checkerboard visual stimulus.
- Developed two novel motion correction methods for artifacts caused by body movement.
- Focused on correcting artifacts in scans around the eye and neck regions.
Main Results:
- Identified body movement as a source of non-rigid motion artifacts in fMRI scans.
- Demonstrated the effectiveness of developed motion correction procedures.
- Showcased the feasibility of using a checkerboard task to optimize motion correction parameters.
Conclusions:
- fMRI is applicable to untrained awake cats.
- Proper animal fixation and motion correction are crucial for successful feline fMRI.
- This opens new avenues for comparative neuroscience research in cats.
