publication . Article . 2003

Early 'visual' cortex activation correlates with superior verbal memory performance in the blind

Amir Amedi; Noa Raz; Pazit Pianka; Rafael Malach; Ehud Zohary;
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  • Published: 15 Jun 2003 Journal: Nature Neuroscience, volume 6, pages 758-766 (issn: 1097-6256, eissn: 1546-1726, Copyright policy)
  • Publisher: Springer Science and Business Media LLC
Abstract
The visual cortex may be more modifiable than previously considered. Using functional magnetic resonance imaging (fMRI) in ten congenitally blind human participants, we found robust occipital activation during a verbal-memory task (in the absence of any sensory input), as well as during verb generation and Braille reading. We also found evidence for reorganization and specialization of the occipital cortex, along the anterior‐posterior axis. Whereas anterior regions showed preference for Braille, posterior regions (including V1) showed preference for verbal-memory and verb generation (which both require memory of verbal material). No such occipital activation wa...
Subjects
Medical Subject Headings: behavioral disciplines and activities
free text keywords: General Neuroscience, Braille, Visual cortex, medicine.anatomical_structure, medicine, Brain mapping, Verbal memory, Neuroscience, Cortex (botany), Psychology, Verbal learning, Cross modal plasticity, Cognitive psychology, Functional magnetic resonance imaging, medicine.diagnostic_test
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