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- W4280492242 abstract "Abstract Semantically related concepts co‐activate when we speak. Prior research reported both behavioral interference and facilitation due to co‐activation during picture naming. Different word relationships may account for some of this discrepancy. Taxonomically related words (e.g., WOLF‐DOG ) have been associated with semantic interference; thematically related words (e.g., BONE‐DOG ) have been associated with facilitation. Although these different semantic relationships have been associated with opposite behavioral outcomes, electrophysiological studies have found inconsistent effects on event‐related potentials. We conducted a picture‐word interference electroencephalography experiment to examine word retrieval dynamics in these different semantic relationships. Importantly, we used traditional monopolar analysis as well as Laplacian transformation allowing us to examine spatially deblurred event‐related components. Both analyses revealed greater negativity (150–250 ms) for unrelated than related taxonomic pairs, though more restricted in space for thematic pairs. Critically, Laplacian analyses revealed a larger negative‐going component in the 300 to 500 ms time window in taxonomically related versus unrelated pairs which were restricted to a left frontal recording site. In parallel, an opposite effect was found in the same time window but localized to a left parietal site. Finding these opposite effects in the same time window was feasible thanks to the use of the Laplacian transformation and suggests that frontal control processes are concurrently engaged with cascading effects of the spread of activation through semantically related representations." @default.
- W4280492242 created "2022-05-22" @default.
- W4280492242 creator A5041492580 @default.
- W4280492242 creator A5041990405 @default.
- W4280492242 creator A5052470489 @default.
- W4280492242 creator A5056735957 @default.
- W4280492242 date "2022-05-12" @default.
- W4280492242 modified "2023-10-06" @default.
- W4280492242 title "Taxonomic and thematic semantic relationships in picture naming as revealed by Laplacian‐transformed event‐related potentials" @default.
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