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The VWFA: it's not just for words anymore
Alecia C Vogel1, Steven E Petersen2, Bradley L Schlaggar3
1Department of Psychiatry, Washington University in St. Louis St. Louis, MO, USA.
Frontiers in Human Neuroscience
|April 2, 2014
Summary
The visual word form area (VWFA) is not exclusively for reading. Neuroimaging studies reveal the VWFA is a general-purpose brain region, useful for reading but also other tasks requiring its specific processing abilities.
Area of Science:
- Neuroscience
- Cognitive Science
- Brain Imaging
Background:
- Reading is a recent human skill with identified brain regions.
- The specialization of these regions for reading versus other tasks remains unclear.
- The visual word form area (VWFA) is a key region of interest.
Purpose of the Study:
- To investigate whether the VWFA is predominantly used for reading or serves a more general function.
- To determine if other reading-associated brain regions are also specialized or general-purpose.
Main Methods:
- Utilized task-based functional Magnetic Resonance Imaging (fMRI).
- Employed seed-based resting-state functional connectivity (RSFC).
- Conducted network-based RSFC analysis.
Main Results:
- The VWFA is not exclusively or predominantly used for reading.
- The VWFA functions as a general-use region with properties beneficial for reading.
- RSFC analyses suggest other reading-associated regions may also be general-purpose.
Conclusions:
- Reconceptualizing the VWFA as a region with specific processing characteristics, rather than one devoted to a single stimulus class, better explains its activity across various tasks.
- This processing-centric view provides a framework for understanding other brain regions and their functions.
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