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. 2014 Nov 4;5:1128. doi: 10.3389/fpsyg.2014.01128

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Copyright © 2014 Carey and Johnstone.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Random effects meta analyses of relative risk of aphasia after unilateral brain damage, dextrals compared to adextrals. Risk ratios greater than one suggest greater susceptibility of dextrals than adextrals; less than one greater susceptibility of adextrals than dextrals. CI = 95% confidence intervals. I² is a measure of the percentage of total variation due to variation between studies. Note that no estimates of susceptibility were provided in Luria (1970) for right hemisphere lesions. Top panel: unilateral left brain damage. Bottom panel: unilateral right brain damage. For additional comments and the raw frequencies, for all figures, see Supplementary Materials.