fMRI by Unknown

fMRI by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9783030418748
Publisher: Springer International Publishing


16.9 Hierarchical Organization for Recovery?

The different dynamics of recovery of language function observed in patients after stroke and with tumors in the left hemisphere suggest various mechanisms for compensation of the lesion within the functional network. Despite the limited number of longitudinal studies, the heterogeneity with respect to the type of aphasia in the patients included, and the differences among the activation and stimulation paradigms (Zahn et al. 2006), a hierarchy for effective recovery might be deduced from these data (Fig. 16.4; Heiss and Thiel 2006):Best, even complete recovery of function can usually be achieved only by the restoration of the original activation pattern within the network of the dominant hemisphere; this is only feasible after small brain damage, probably only affecting an area of minor importance, permitting functional restitution of the main interconnected components.



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