|
|
Longitudinal fMRI study of reading in a patient with letter-by-letter reading
The present study provides a longitudinal fMRI study of reading 7 days after a hemorrhage in the left basal occipito-temporal region when the patient showed letter-by-letter (LBL) reading, and repeated again 50 days after onset, when his LBL reading had resolved. Direct comparison of the two sessions showed that right homologue of the so called visual word form area (VWFA), as well as a network related to language and verbal working memory, such as the bilateral premotor areas, Broca's area and its right homologue, and the left supplementary motor area were more strongly activated when his LBL reading persisted than when he recovered, whereas perilesional activity around the VWFA and the activity of superior part of the left superior parietal lobule were more strongly activated when he recovered than when his LBL reading persisted. These results suggest that dynamic functional reorganization of the brain was caused in the acute phase and that the increased activation of certain areas in the left superior parietal lobule in addition to the VWFA may be related to recovery from LBL reading.
Otowachinjicho, Kyoto Japan
Departments Name: Department of Neurology
Institution name: Rakuwakai-Otowa Hospital
Authors: Ino T, Tokumoto K, Usami K, Kimura T, Hashimoto Y, Fukuyama H.
Journal Name: Cortex
Data: 2008, Jul-Aug
Volume: 44(7):773-81
Country: Japan
Other Categories:
Dyslexia
|
|
|
 Physicians Home Page
 Medinex Seal of Approval
 Welness Web: The Patient's Network
 HONcode Principles of the Health On the Net Foundation
 Partners of CareData.com
|