Why overlearned sequences are special: distinct neural networks in the right hemisphere for ordinal sequences
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- Baylor College of Medicine
- Document Type:
- Manuscript
- Date:
- Received 30 October 2008 20:08 UTC; Posted 04 November 2008
- Subjects:
- Neuroscience
- Abstract:
Written and spoken words activate left hemisphere areas involved in language processing. However, we here show that overlearned sequences (e.g. letters, numbers, weekdays, months) involve an unexpected right hemispheric activation in both the middle temporal gyrus and temporoparietal junction. Our findings offer a framework for understanding neuropsychological patterns seen in conditions such as synesthesia, in which anomalous perceptual experiences are triggered by overlearned sequences, and also in semantic dementia, in which left hemisphere damage disrupts word knowledge even while sequences can be spared.
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- License:
- This document is licensed to the public under the Creative Commons Attribution 3.0 License
- How to cite this document:
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Pariyadath, Vani, Churchill, Sara, and Eagleman, David. Why overlearned sequences are special: distinct neural networks in the right hemisphere for ordinal sequences. Available from Nature Precedings <http://hdl.handle.net/10101/npre.2008.2452.1> (2008)
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