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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Brain Lang. 2011 Apr 2;118(1-2):40–50. doi: 10.1016/j.bandl.2011.02.005

Figure 2.

Figure 2

Differing accounts of plasticity in language systems in chronic aphasia. 2a) After unilateral left hemisphere stroke (grey), some language functions may be subserved by recovered lesional areas or recruited perilesional areas (light green). 2b) Right perisylvian areas (light green) may be recruited to subserve some language functions, a process facilitated by decreased transcallosal inhibition of the right hemisphere by the damaged left hemisphere. 2c) By contrast, right hemisphere activity may be deleterious. Released from interhemispheric inhibition, right hemisphere structures (red) may exert increased inhibitory influence on left perisylvian areas, impeding functional recovery of lesional and perilesional areas in the left hemisphere (dark green).