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Journal Article

Brain areas critical for picture naming: A systematic review and meta-analysis of lesion-symptom mapping studies


Eikelboom,  Dilys
Language Development Department, MPI for Psycholinguistics, Max Planck Society;

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Piai, V., & Eikelboom, D. (2023). Brain areas critical for picture naming: A systematic review and meta-analysis of lesion-symptom mapping studies. Neurobiology of Language, 4(2), 280-296. doi:10.1162/nol_a_00097.

Cite as: https://hdl.handle.net/21.11116/0000-000D-2D65-0
Lesion-symptom mapping (LSM) studies have revealed brain areas critical for naming, typically finding significant associations between damage to left temporal, inferior parietal, and inferior fontal regions and impoverished naming performance. However, specific subregions found in the available literature vary. Hence, the aim of this study was to perform a systematic review and meta-analysis of published lesion-based findings, obtained from studies with unique cohorts investigating brain areas critical for accuracy in naming in stroke patients at least 1 month post-onset. An anatomic likelihood estimation (ALE) meta-analysis of these LSM studies was performed. Ten papers entered the ALE meta-analysis, with similar lesion coverage over left temporal and left inferior frontal areas. This small number is a major limitation of the present study. Clusters were found in left anterior temporal lobe, posterior temporal lobe extending into inferior parietal areas, in line with the arcuate fasciculus, and in pre- and postcentral gyri and middle frontal gyrus. No clusters were found in left inferior frontal gyrus. These results were further substantiated by examining five naming studies that investigated performance beyond global accuracy, corroborating the ALE meta-analysis results. The present review and meta-analysis highlight the involvement of left temporal and inferior parietal cortices in naming, and of mid to posterior portions of the temporal lobe in particular in conceptual-lexical retrieval for speaking.